KO-811 CERTA — heat-resistant primer-enamel up to +700 °C for furnaces and boilers
Silicone primer-enamel for steel furnaces, boilers, heat exchangers, equipment and hot water pipelines; also available in 0.8 kg packs.

CERTA enamel on silicone resins withstands from −60 °C to +1,200 °C depending on colour and is applied at temperatures from −30 °C. It is used on gas pipelines, steam pipelines, industrial chimneys, power line towers, communication masts, boiler and heat exchange equipment; for bridges and overpasses, its use is provided for by the STO of AO TsNIITS. The predicted service life under UKhL1 conditions is up to 20 years; the enamel is included in the Register of Russian Industrial Products and serves as a topcoat over ECOZIN primers.
| Manufacturer | CERTA — OOO “NPP “Spektr”, Novocheboksarsk |
|---|---|
| Type | heat-resistant coatings |
| Base | one-component enamel on silicone resins; solvent o-xylene |
| Colour | basic: black (up to 1,200, 1,000, 800, 700, 500 °C), black satin and deep matt black (up to 1,200 °C), anthracite 600, graphite 700, brown 800, silver 700, silver-grey 650, grey 400 and 650, white 400 and 700, blue 400, light blue 400, yellow 750 and 400, red-brown 800, green 500, khaki 600, bright red 400, red 400, orange 400, beige 400 |
| Packaging | 25 kg, 10 kg, 4 kg; 0.8 kg, 0.4 kg; aerosol 520 ml |
| Application method | spraying (preferred), lint-free roller, brush; 1–4 coats; stripe coat on welds and edges; preparation: welds and edges — P3 per ISO 8501-3, for service above 100 °C and thermal cycling — abrasive blast cleaning Sa 2½; thinning with CERTA solvent not more than 10 % |
| Application temperature | from −30 °C to +40 °C; relative humidity not more than 80 %; surface 3 °C above the dew point; aerosol — not below −5 °C |
| Drying | full properties in 72 h at +20 °C; heat hardening on first heating; installation — not earlier than 72 h |
| Key properties | adhesion 1 point; impact strength 50 cm; resistance to 3 % NaCl, mineral oil, petrol, toluene, o-xylene, solvent naphtha |
| Compatible materials | stand-alone coating; topcoat over ECOZIN 96 % and ECOZIN A 55 % (system up to +600 °C with silver enamel); version with CERTA PROFESSIONAL hardener (TU 20.14.51-042-49248846-2024): 25 kg of enamel + 0.225 kg of hardener, pot life 8 h, application from −10 °C to +40 °C |
| Shelf life | 3 years from the date of manufacture, aerosol — 5 years; storage from −30 °C to +40 °C |
| Standards | TU 2312-001-49248846-2000; GOST 9.407 (assessment of colour change) |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Silicone primer-enamel for steel furnaces, boilers, heat exchangers, equipment and hot water pipelines; also available in 0.8 kg packs.
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One-component silicone enamel up to +700 °C for steel and cement-sand surfaces, pipelines, equipment and tanks.