I went to a seminar organized by the Publishing House “Origami” magazine “Cleaning. Painting”, held in St. Petersburg on November 14-15, 2011 under the title “Practice of applying paint and varnish coatings during negative temperatures”.
In addition to listening to information that was well known to me about the types of corrosion and how to deal with it, about Wiwa painting equipment, which I will talk about later in the Equipment section, where I have already described my experience with many painting machines, and showed a small master class on staining corrugated sheets.
I also listened to a very interesting lecture by technologists from the Morozov Chemical Plant about applying paint at subzero temperatures.
Morozov Chemical Plant is the oldest Russian enterprise for the production of enamels. It was he who began producing heat-resistant enamels of the well-known types KO and OS. I will also talk about enamels, but later, in the Materials section. I think it will be interesting.
I had a long-standing correspondence relationship with MHZ. 
It was very nice to meet you in real life. There is no doubt about their professional approach to AKZ. Just look at the trips of the chief technologist of the MHZ Urvantseva G. to many objects where they are painted with enamels, her constant consultations and technical supervision of the painting production at the objects. A huge number of grateful reviews about MHZ.
So, returning to main topic seminar.
Paints can be applied at sub-zero temperatures. To do this, the following conditions must be met:
1) You cannot paint at a temperature of +-5 degrees. C. This is due to the formation of condensation, dew, on the metal surface. In general, this temperature is the worst for painting with any paints.
2) The surface to be painted and the paint must be at the same temperature. When airless spraying warm paint onto a cold surface, condensation also forms when materials of two different temperatures come into contact. Even if we all understand that painting using the airless method occurs very quickly, condensation nevertheless forms.
3) The question is how to paint concrete surfaces at subzero temperatures requires additional consideration.
Of course, a lot has been said about the fact that it is possible to paint with OS and KO enamels produced by MHZ, down to -10 degrees C, without loss of quality, but I did not have to work with them at such a temperature.
I had to work with enamels:
PF-115 and ХВ-0278, at temperatures from -0 to -10 degrees. S. It was simply cold to work further. I painted it in a cold room, using paint that was stored there.
HV -174 on outdoors at a temperature of 0, + 5 degrees C metal structures of the same temperature, paint stored at the same temperature.
PF-100 in a room at a temperature of -5, + 7 degrees C, which was eventually raised to +12 degrees C
As you can see, the temperature regime was not observed everywhere.
As a result:
Application:- the same as always.
Drying:ХВ 0278, 2-3 hours (same as always)
PF-100 - drying 2-3 days (according to the passport - a day)
PF – 115 drying from 7-10 days or more (according to the passport – a day)
ХВ -174, same as always, drying time 2-3 hours.
Polymerization:ХВ 0278, 5-7 days (same as always).
PF-100, 5 days.
PF – 115, not known. When we left the site, it was not yet dry :)
HB -174, drying 2-3 hours (same as always).
Exploitation: XB 0278 has been standing for more than a year, without any coating defects.
PF-100, no negative reviews, impossible to enter the painting area
PF - 115, stood for half a year, in the fall it began to fly off like burdocks.
ХВ -174, stood for a year. It started flying off like burdocks.
It is worth noting that enamels PF-100 and XB-0278 are classified as primer enamels for rust. They have additional additives in their formula and have an order of magnitude different cost. Although I am skeptical about coatings such as primer-enamel for rust, nevertheless, in these conditions they showed the best results.
PF-115, based on Russian SNIP, is not recommended for painting metal structures used in industrial environments. Therefore, the legality of the project for painting PF-115 and metal structures is in great doubt. Even if the application conditions were met at subzero temperatures, it behaved in the most odorous manner.
An example of painting XB-174, which in its plastic properties does not differ from XB-0278, showed non-compliance with technology and the result was not long in coming.
Thus, on personal practical experience from my observations, I can confirm, high-quality coating It can be done at sub-zero temperatures. The main thing is not to carry out painting work at + – 5 degrees. WITH.
Typically, painting work is planned for the warm season, when the temperature conditions are most favorable for this. The lower recommended temperature threshold for painting is plus 5 degrees. But now there are many modern paints and primers that are suitable even for negative temperatures. In this regard, the minimum possible limit at what temperature you can paint outdoors has changed.
Features of painting work in winter
In industrial conditions, the need for painting at low temperatures arises if the object needs to be delivered on time, or if there is an urgent need to renew the surface of the building. In everyday life, such urgency is rarely observed, but it still happens. There are a number of features of painting in the cold season:
- The most unfavorable temperature for using paints, enamels and primers in winter is from minus 5 degrees to plus 5 degrees. It’s better to work even in cold weather, because it is in the specified range that condensation will form on any surface. In the presence of moisture, the adhesion of the coating greatly deteriorates and the properties of the paints change. The quality of the coating decreases and it will not last long.
- If you decide to paint facades in cold weather, you need to remember - facade paint Any brand takes 2–3 times longer to dry than in warm conditions. To get a high-quality coating, you need to use a heat gun for drying or stretch the film over scaffolding.
- You should choose only enamel and primer suitable for the winter season. Using the wrong material will cause it to freeze, and the ice will prevent the product from being applied to the walls. The final result of the work depends on the quality of the paint.
A number of modern paints are perfectly applied at zero temperatures and in frost, some can be used down to –20 degrees. Eat good means, resistant to temperature changes. It is important that the temperature of the paint and varnish material itself be positive during operation. If the material is cold, it is placed in a container in a bucket of warm water.
The rules for using primer and paint in cold air mention mandatory surface preparation. You cannot use coloring materials without certain actions:
- clear work area from old coating;
- treat the surface with a sandblasting machine, sandpaper or other convenient method;
- fill in uneven spots with putty;
- if the technology requires, apply priming (the walls need to be primed if this is indicated by the manufacturer on the paint packaging).
You can't work if it's raining or snow - you need to wait for the onset of normal weather. Painting should be done with a roller or brush, but it is better to forget about the spray gun - its nozzle will quickly become clogged.
The most important thing is to make the surface clean and dry. You should also bring the enamel to the desired viscosity. Usually water-based paints are used, which are diluted with water. It must be remembered that alkyd materials their viscosity increases sharply in the cold, and do not forget to dilute and warm them up in time.
Primer work
In winter, use a primer that is resistant to low temperatures (frost-resistant primer). If iron is stained, special phosphating compounds are used. They can be applied over rust, as they include special anti-corrosion components. Priming gives additional protection against corrosion, increases the adhesion of the final coating.
Painting house facades
Carrying out external facade work in winter is possible if you choose the right paint. After cleaning the walls from dirt and dust, they sand them; if there are areas of old paint or mold, they are removed. Next, prime the walls with a product of the same brand as the base paint - this will improve the quality of the coating. They work with packages brought from warm places. As soon as the material begins to freeze, it is put into a warm place and another package is taken out. The second coat of paint is usually applied after 3-5 days.
Painting brick and plastered surfaces
The painting of such surfaces is no different from that of the facades of the house. It is only important not to paint immediately after finishing the masonry - the work is postponed, the minimum period is a year. If you paint right away, the coating will peel off. Surface preparation is required (cleaning with a brush to remove dirt, dust, mold). The chipped plaster is cleaned, the holes are sealed, and allowed to dry thoroughly. You can also fill deep holes with frost-resistant silicone sealant. After priming, the wall is allowed to dry for 5–7 days, then it is painted with a roller or brush.
Concrete processing
Concrete floors and walls have a porous surface. Also outer side Concrete products weather faster and the coating dye loses its brightness. Painting concrete can be done a year after installation, this is necessary so that some of the concrete dust evaporates. In some cases, it is possible to paint surfaces without exposure - for example, in a workshop, warehouse, hangar.
Metal processing
In winter, you may need to paint pipes, garage walls, iron cladding of sheds, corrugated sheet fences, etc. Metal does not absorb moisture, so it does not change properties depending on the climate. For painting work, special metal compositions should be used - at sub-zero temperatures they form a strong elastic film.
Tips for painting metal in winter:
- the surface must be dry, clean, free of rust using abrasive devices;
- if there is frost, the surface is treated with a flash gas burner– a brush or scraper will be ineffective;
- Preliminary degreasing is carried out with isopropanol and acetone.
Painting wood
It is not recommended to paint wood, products made of fiberboard, chipboard, and lining in winter. If the house is made of wood on the outside, it is better to leave painting it until the warm season. Water accumulates between the fibers of the tree, which freezes in frost. The structure of the material expands, and the paint applied on top seals it in this state along with the ice. After thawing, the water begins to push out the paint, the latter cannot withstand it and bubbles. The wood also begins to rot under the enamel.
If staining is urgently needed, a test is done first. Apply a wide strip of tape to the surface, leave it for 2 days, then remove it. If there is condensation on the tape, painting is not done. With a dry strip, painting can be done after preliminary priming.
Indoor painting work
Painting the inside of a house in cold weather is much easier than doing exterior work. But the specifics of painting must be taken into account.
Balcony
Painting a balcony or loggia in an apartment in winter may be required when selling to improve the surface of walls, ceilings, and floors. The most difficult thing is to tint a cold balcony - it is better to wait until the temperature is above zero and only then paint Painting works. If absolutely necessary, you can purchase paint that can withstand low temperatures, wait for a sunny day, make sure the walls of the loggia are warmed up sufficiently, and paint.
Painting is carried out only in the morning - the coating will dry faster due to heating by the sun's rays. If you have an outlet, you can place a heater on the insulated balcony, this will allow you to carry out the work efficiently. Acrylic water-based compositions are well suited for balconies - with their use you can avoid poisoning, they are environmentally friendly and odorless. Such paints increase thermal insulation characteristics walls, allow them to “breathe”, fade and collapse very slowly. If there are parts made of plastic or metal on the balcony, it is better to coat them with varnish. The lining is coated with acrylic varnish.
Batteries
Painting a battery in winter has a number of features. To paint the radiator, you need to prepare a brush with metal bristles, a simple brush and a radiator brush with a long handle. You will also need sandpaper, dust brush, knife. Be sure to purchase a metal primer, paint, and solvent. The basic composition must be suitable for radiators and contain anti-corrosion additives and be non-toxic. The best means are:
- acrylic;
- alkyd;
- water-dispersed;
- silicone;
- based on heat-resistant varnish;
- zinc.
How many degrees can such enamels withstand? They are designed for a standard temperature of +80 degrees. Some are available in aerosol form - sold in a can, and by spraying you can easily paint even the most hard to reach places. It is better to remove the batteries for painting by turning off the water supply. If this is not possible, you should wait until the batteries are turned off in the spring. Hot batteries will be painted poorly and the coating will often swell. After cleaning the surface, it is primed and painted in 2 layers. Each layer must dry completely.
Window
Coloring wooden windows in frosty weather outside, it is undesirable, like other wood products. Only the use of heat guns will make it possible to dry the product well, but the labor intensity of the work will increase significantly. The inside is painted in the same way as it is done in warm weather. Old paint must be removed, the surface primed, then applied suitable composition. Plastic windows You can also paint them using special paints if you want to update their color.
What paints are used in winter
Enamels and primers that are used at subzero temperatures are varied. Their properties:
- do not freeze in the cold;
- suitable for different types materials;
- can be operated at temperatures down to –10…–20 degrees;
- form an elastic layer;
- Dries faster compared to regular paint.
Water-based paints
This type of paint is most in demand in winter. The products of the companies Dufa and Batilith, Dulux and Tikkurila are very popular, which produce many types of appropriate paint and varnish materials. Good frost-resistant paints are produced by the German company Caparol. A number of manufacturers produce frost-resistant water-based paint AK-115, which can withstand temperatures down to -20 degrees below zero. Other known materials:
- Parade f20;
- Lakra;
- Alpa Façade;
- Brite Professional primer;
- Vincent Muralith F1.
Oil paints
Oil-based materials are almost never used now. They are much inferior in properties water-based paints, their service life is no more than 2–3 years. You need to dilute the product with drying oil, special solvents. Only some paints marked PF, MA, GF are suitable for working in cold weather.
Aerosol paints
Enamels in cylinders are used, for the most part, for painting batteries, cars, and plastic products. They are quite expensive, but create high-quality coverage. Popular brands are:
- Maxi color;
- Colomix;
- Dupli-color;
- Vixen.
Most paints of this type can be used down to –15 degrees.
Storage temperature of paints and varnishes
Typically, the permissible storage temperature is indicated on the packaging of the material. According to GOST, paints and varnishes can be stored at temperatures of –40…+40 degrees, but individual conditions may exist for each specific material.
The need to paint a concrete floor, fence, facade or metal structures, is also present in winter, when it is frosty outside and negative temperatures reach -15C°. Not every paint or primer copes with this task. Many paints and varnishes cannot be used in the cold, so for outdoor work in winter they are necessary special materials, suitable for use at low temperatures and providing high-quality coverage under these conditions.
NPP GC produces a number of special paints for the winter period to provide its customers with the opportunity to carry out work at any time of the year:
Winter paints for concrete and asphalt
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One-component polymer-acrylic enamel for concrete BETOXIL has proven itself to be effective when carrying out painting work in winter. Forms a matte coating that is resistant to precipitation and temperature changes from -40°C to +50°C.
BETOXIL can be used for external painting work on concrete at temperatures down to -15°C (on a dry, non-icy surface).
The base color is light grey; upon request, dark grey, white, yellow, red-brown can be tinted.
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Enamel "Protector-M" is used to protect concrete floors for industrial and civil purposes, cement-sand screeds, plastered surfaces, bricks, curb stones, for road markings of asphalt pavements, etc. Forms a particularly strong and durable coating with increased abrasion resistance. Resistant to detergents, fats and precipitation, limited resistance to oils and gasoline.
The material can be used for external painting work on concrete at temperatures down to -15°C (on a dry, non-ice surface).
The base color is light grey, can be tinted to order in a wide range of RAL colors (with increasing costs).
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Polymer-acrylic paint is intended for applying protective and decorative coatings to curbs on roads, sidewalks, garden borders, stairs and parapets, and plinths of facades of industrial and civil buildings. The composition has proven itself well on roads, warehouses, garage complexes, etc. Forms a strong and durable coating. Resistant to gasoline, oils, detergents, salts, fats and precipitation, as well as temperature changes from minus 40˚С to plus 50˚С. Can be used in winter at temperatures down to -15°C.
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Varnish for concrete and mosaic floors.
"Lakotex" is intended for decorative and protective finishing of concrete floors, mosaic floors, cement-sand screeds, bricks, curb stones, metal and wooden surfaces both indoors and outdoors. Can be used for outdoor work in the cold season, at temperatures down to -10°C.
Forms a coating with increased abrasion resistance, resistant to detergents, fats, precipitation and limited resistance to oils and gasoline.
Apply to a prepared, dust-free surface.
Paints and primers for metal for winter
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Anti-corrosion metal enamel with a 20-year service life for the protection of external surfaces, permanently installed equipment and metal structures exposed to atmospheric influences in tropical, temperate and cold climates. Provides long-term surface protection from corrosion and aggressive alkaline and acidic environments. The enamel film is resistant to temperature changes from -60°C to +95°C, protects the surface well and gives it an excellent aesthetic appearance. PROTEKTOR-MET enamel FOR 20 YEARS can be used for outdoor work in winter - it is applied to non-ice-covered metal structures at temperatures down to -15°C.
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"FOSGRUNT" is a one-component primer for cold phosphating of ferrous and non-ferrous metals operating in the temperature range from -50 to 300°C. Combines barrier and chemical method protects the metal by forming a layer of insoluble phosphates, which makes it difficult to develop under-film corrosion. Dramatically increases adhesion finishing coating. Intended for anti-corrosion protection of new and old metal surfaces, the sandblasting of which is difficult. Can be applied in dry weather to non-icing metal structures and metal surfaces at temperatures down to -10°C
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Provides long-term protection of the surface from corrosion, aggressive atmospheric influences, humidity, etc. It has high hiding power and forms an even matte film. The enamel film is resistant to temperature changes from -50°C to +90°C, protects the surface well and gives it an excellent aesthetic appearance. A coating consisting of two layers of “Galvanized Paint” applied to the prepared surface preserves protective properties during long term without being subject to destruction. Can be applied in dry weather to non-icing metal structures and metal surfaces at temperatures down to -15°C
Two-component anti-corrosion enamel for metal. For anti-corrosion protection of ferrous and non-ferrous metals. Can be applied to reinforced concrete products. Elastic, waterproof, weatherproof. Scope of application: structures at chemical, oil refining, pharmaceutical and Food Industry. Can be applied to metal surfaces at temperatures down to -10°C
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Kigol is a highly adhesive anti-corrosion two-component phosphating primer for the protection of ferrous metals, which has the properties of a rust converter. Designed for priming metal surfaces before applying paints and varnishes, without additional processing: phosphating and oxidation (immersion or impregnation method). It is allowed to use thin, firmly adherent layers of corrosion and scale products as a converter. Can be applied in dry weather to non-ice-covered metal structures and metal surfaces at temperatures down to -10°C
Termolen-400 paint is a one-component silicone enamel intended for anti-corrosion treatment of ferrous metals operating at temperatures up to +400°C. The material consists of a suspension of pigments and solvents with targeted additives in an organosilicon varnish. Used at negative temperatures down to - 20°C.
Antakor plus is used to protect metal products (mainly carbon and low-carbon steel and cast iron) from rust by converting corrosion into a phosphate protective film (cold phosphating technology), forming a chemically bonded layer of phosphate insoluble salts of iron, manganese and zinc. Used at negative temperatures down to - 15°C, high adhesion to metal surfaces, easy to use, compatible with all types of paintwork materials
Frost-resistant paints for facades and roofs
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The paint is intended for painting and protecting the plinths of building facades on concrete, plastered and brick surfaces. It is possible to use paint for the base indoors in rooms with high humidity, underground garages, and road tunnels. The paint is characterized by high vapor permeability and waterproofing properties and forms a “breathable” coating on the surface that allows air to pass through, but is impermeable to water. Coating service life at correct application at least 4 years. In addition, “SOKOL-KOLOR” has high light resistance. “SOKOL-COLOR” paint is produced using modern technologies from high-quality raw materials from domestic and imported manufacturers. In winter, it can be applied at temperatures down to -20°C.
"SLATE-COLOR" - the paint is intended for painting slate, tiles, ACED, for repairing old and making new roofs based on mineral materials(slate, cement-sand tiles, concrete, plaster and cement bonded particle boards, brick). The paint is resistant to atmospheric factors (snow, rain, ultraviolet radiation). Paint creates protective layer, which reduces the volume of asbestos emissions from asbestos-containing products into the surrounding air and increases the service life of slate by 1.5-2.5 times. “SHIFFER-COLOR” is characterized by high vapor permeability and waterproofing properties and forms a “breathable” coating on the surface that allows air to pass through, but is impenetrable to water. You can paint slate with this paint in winter at temperatures down to -10°C.
Wood paints for exterior use in winter
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For coloring wooden facades buildings and other wooden surfaces. Is different high level hiding power, weatherproof, chemical resistant detergents and UV radiation, water-repellent. Used at negative temperatures down to -5°C.
Facade weatherproof paint SEVEROL has increased resistance to UV radiation, fast drying time, high resistance to vapor permeation and good waterproofing properties. Apply at temperatures from minus 30 °
C and high relative humidity air.
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U universal two-pack anti-corrosion chemical-resistant primer-enamel paint ZIMAPRIM Designed as a self-priming anti-corrosion coating for anti-corrosion protection of steel, concrete and reinforced concrete structures. Forms a water-resistant and chemical-resistant anti-corrosion coating that can withstand prolonged exposure to water and mineral acids of medium and high concentrations (sulfuric, hydrochloric, phosphoric, hydrofluoric). Recommended for anti-corrosion protection of internal surfaces technological equipment and pipelines working in contact with mineral acids, structures exposed to dousing and spraying, reinforced concrete foundations and embankments for equipment, trays, floors, stairs production premises with low traffic intensity (laboratories, workshops, warehouses, etc.).
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Universal two-pack anti-corrosion chemical-resistant paint "ZIMAPRIM"
Application area: Universal two-pack anti-corrosion chemical-resistant primer-enamel paint "ZIMAPRIM" is intended as a self-priming anti-corrosion coating for anti-corrosion protection of steel, galvanized, concrete and reinforced concrete structures. Forms a water-resistant and chemical-resistant anti-corrosion coating that can withstand prolonged exposure to water and mineral acids of medium and high concentrations (sulfuric, hydrochloric, phosphoric, hydrofluoric). Recommended for anti-corrosion protection of internal surfaces of technological equipment and pipelines working in contact with mineral acids, structures exposed to pouring and spraying, reinforced concrete foundations and embankments for equipment, trays, floors, stairs of industrial premises with low traffic intensity (laboratories, workshops, warehouses, etc.). P.).
Conditions of use: mix the components of the two-part universal paint ZIMAPRIM, mix thoroughly. The paint is ready for use. If necessary, dilute with a solvent (orthaxylol, R-5, R-12, butyl acetate) no more than 1/5 by volume. The temperature range for applying paint is from -30°C to +35°C.
Surface preparation: The surface to be treated must be dry and free of contaminants.
Consumption: 0.23 kg/m2.
Drying time: interlayer drying for 1-2 hours.
Cleaning the instrument: Upon completion of painting work, wash the tool with solvent.
Precautionary measures: thoroughly ventilate the room after finishing work. Use personal protective equipment, short contact with skin is acceptable.
Storage conditions: store in a tightly closed container, protect from moisture.
Guarantee period storage:
12 months from the date of manufacture.Technological regulations:
Preparation of the metal surface, application and curing of the protective insulating 2k coating “ZIMAPRIM” at subzero temperatures.
1. Remove obvious rust mechanically. It is advisable to carry out chemical treatment with Ortamet. Wash off and degrease the metal surface after treatment. For washing, solvents R-5 or Ortho xylene are recommended.
2. Immediately before applying the coating, it is recommended to moisten the surface with a brush or spray with the specialized TDR solvent included in the material. This is necessary for better adhesion, as well as for replacing moisture, ice and frost from the metal surface with a solvent. In case of obvious ice, first wet the surface with solvent and spray the surface with a torch from a propane torch.
3. Weather such as snow blizzard freezing rain will have an impact on appearance surfaces. Best for work in winter period there will be no wind sunny weather from 10 a.m. to 3 p.m.
4. Component A and component B must be mixed in portions, stirred, left for 15-25 minutes and filtered through a nylon filter element of a cone or bag type. The pot life of the mixture is four to six hours. Preferably applied with a velor roller. Airless application by machine is allowed high pressure at 300 bar.
5. When carrying out painting work, it is necessary to have a comb-type thickness gauge. The wet layer thickness should be 120-150 microns. Touch-drying at -20C will occur in no more than two to three hours, and primary polymerization at a temperature of -20C will take no more than three days. In case of urgent need, it can be applied wet on wet with an interval of 3 hours between layers.
Surface preparation for coating operation in temperate climate zones
If, when examined without magnifying instruments, the surface is free from oil, grease and dirt, as well as from easily separated mill scale, corrosion, paint coatings and foreign particles, then when preparing the surface, you can limit yourself to a metal brush and a chisel without mordant and without abrasive blast cleaning: St2 - Thorough manual mechanical cleaning.
Due to the fact that solventborne acrylic copolymers reject oils and greases, it is necessary to ensure that the ADHESION and IMPACT HARDNESS indicators are maintained. REMOVE COMPLETELY residues of rolling oil and coolant from products made of cold-rolled and chopped material. Please note that lubricants may be disguised as minor corrosion. If we apply the ORTAMET mordant on such a surface, we will see how the corrosion is compressed into phosphate, and the lubricant is released in free form. PROHIBITED! the use of white spirit, solvent, gasoline, even for degreasing and washing instruments.
For confident use in temperate (U) climate zones, it is necessary to carry out a number of preparatory procedures, namely:
1 - surface preparation to St2 - “Thorough manual mechanical cleaning” when examined without magnifying devices, the surface must be free from oil, grease and dirt, as well as from easily separated mill scale, corrosion, paint coatings and foreign particles (3.1, note 1 ) (photos B St 2, C St 2 and D St 2 according to the standard). GOST R ISO 8501-1-2014;
5 - decline
SEVERON applied in 2 - 4 layers with a total coating thickness of 200 to 400 microns. In two layers on clean or primed metal. In three to four layers when applied to surfaces with traces of primary corrosion.
Surface preparation for coating operation at a temperature of -60° in HL and UHL climatic zones
Severon enamel primer, like a polymer film, retains its performance at temperatures from -60C° to +125C°.
When operating in low temperatures down to -60C°, the condition of the surface you choose plays a very important role.
Best result show hot rolled surfaces. Surfaces made of cold-rolled and chopped materials, surfaces with varying degrees of oxidation and scale, as well as previously painted surfaces require careful preparation!
For reliable operation of the coating in the conditions of HL and UHL climatic zones at temperatures down to -60C°, it is necessary to carry out a number of preparatory procedures, namely:
1 - surface preparation to Sa 2? - “Ultra-thorough abrasive blast cleaning”, when inspected without the use of magnifying devices, the surface after cleaning must be free of oil, grease and dirt, as well as mill scale, corrosion, paint coatings and foreign particles. Any remaining traces of cleaning are allowed in the form of pale spots, dots or stripes (photos A Sa 2 ½, B Sa 2 ½, C Sa 2 ½ and D Sa 2 ½ according to the standard)" GOST R ISO 8501-1-2014.
2 - etching according to GOST 9.402-2004;
3 - R-12, ORTHOXYLENE, CAPILLAR TU 20.30.12-018-81212828-2017 (*special attention to cold-rolled and chopped products);
4 - immediately 20-40 minutes before applying paintwork, remove moisture and ice by “wet drying” with “CAPILAR” material or solvents R-5, R-12;
5 - decline surface tension forces for the best adhesion - CAPILAR TU 20.30.12-018-81212828-2017.
The application method must be strictly followed:
SEVERON is used for critical work; it prevents corrosion for a long time; it can be applied directly to metal. Does not require preliminary priming. Without preliminary priming, the number of layers of material should be increased. Applying a primer layer directly to the metal using pneumatic spraying should be avoided! To create an anti-corrosion layer directly on the metal, the method of airless spraying with high-pressure apparatus, higher than 300 bar, is suitable. (list of recommended devices from 300 bar)
SEVERON is applied in 2-4 layers with a total coating thickness of 200 to 400 microns. For operation at temperatures of -60C°, a minimum of three layers must be applied.
For confident use at temperatures of -60°, it is prohibited to add solvents intended for temperate zones to Severon before application!
If the paint does peel off from the product, it is necessary to examine the layer that was directly close to the metal under a microscope. Due to the fact that solvent-based acrylic copolymers reject oils and greases, it is necessary to COMPLETELY REMOVE the remaining rolling oil and coolant from products made from cold-rolled and chopped material. Please note that lubricants may be disguised as minor corrosion. If we apply the ORTAMET mordant on such a surface, we will see how the corrosion is compressed into phosphate, and the lubricant is released in free form. PROHIBITED! the use of white spirit, solvent, gasoline, even for degreasing and washing instruments.
Previously, before the start of preparation for painting, the engineering and technical department or OGT department must issue a technological map “Anti-corrosion protection of metal structures based on primer enamel Severon AkCh-1711.” The site foreman must be personally responsible for compliance technological map when performing work.
| CERTIFICATE OF QUALITY | COATING COMPLEX ZIMAPRIM |
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"ORTAMET" - metal phosphating composition;
anti-corrosion rust converter
Phosphating solution “ORTAMET”
can be applied directly to rust even in cold weather (down to -15 °C). Surface treatment with ORTAMET solution can be done with a brush, roller or spraying in a factory or production environment. The “ORTAMET” solution is applied to the surface and left in air until the surface dries completely. ORTAMET solution converts rust on the metal surface into durable coating black-brown in color, consisting mainly of iron phosphates, which creates a protective film on the surface. This protective film is a barrier to the emergence of new foci of corrosion and at the same time adhesive primer for further application of paintwork. Due to its ease of use and the use of non-toxic and non-toxic components, phosphating based on orthophosphoric acid is most widely used in industry. Treatment with ORTAMET solution can be carried out at subzero temperatures environment(up to -15 °C). Phosphating solution “ORTAMET” is supplied in 5 kg buckets.
Purpose: protection of ferrous and non-ferrous metals, metal surfaces and products from corrosion by converting rust into a protective phosphate film, forming chemically bonded layers of insoluble phosphate salts of iron, zinc and manganese.
Cold phosphating with ORTAMET provides high adhesive strength, anti-corrosion and weather resistance, high adsorption paint coating. Significantly extends the life of the paintwork. Gives anti-friction, electrical insulating and extrusion properties. Easy to apply and environmentally friendly. ORTAMET converts rust on the metal surface into a durable silver-black to black-brown coating (consisting mainly of secondary and tertiary iron phosphates).
ORTAMET rust converter is used both for primary painting and for thick layers of rust.
Application area: metallurgy, mechanical engineering and shipbuilding, energy and oil and gas industries.
Mode of application: ORTAMET is applied to a dry, clean surface. If necessary, degrease the surface. Painting should be done after the treated surface has completely dried.
Waiting time before applying paintwork (drying/blueing): at a temperature of - 5 °C for at least 30 minutes, at - 15 °C - up to 10 hours. Drying can also be carried out at more high temperature, for example 130 °C (about 3 minutes). The final paint coating should be applied no later than 2 days after the rust converter has dried. Temperature application: from +5 °C to +40 °C.
Application method: brush, roller, spraying, dipping.
Consumption: 40-60 g/m2 - depending on the method of application and the shape of the surface.
Precautionary measures: during and after completion interior works ventilate the room. Use personal protective equipment.
Storage: store in a tightly closed container, protecting from exposure sun rays. Storage temperature from -20 °C to +40 °C. ORTAMET is non-flammable and non-explosive. Guaranteed shelf life in original packaging is 3 years from the date of manufacture.
Photo gallery of objects painted with frost-resistant coatings
 paint for metal in cold weather,protection of coatings in frost |
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enamel on metal in the cold,corrosion protection |
| SEVERON at subzero temperatures (Achinsk) | |
| SEVERON at negative t (Achinsk) | SEVERON after winter (Achinsk) |
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