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.

Weather-resistant OS-12-03 is produced by CERTA to TU 2312-002-49248846-2002 and is designed for service from −60 °C to +150 °C in corrosivity categories C1–C3 per ISO 12944-2. Its field of application is trusses, beams, trestles, power line towers, bridge structures, facades and tunnels, as well as tanks, pipelines and concrete. The coating is applied by spraying, brush or roller in at least 2 coats, without primer or over a primer as per the instructions, at temperatures from −20 °C.
| Manufacturer | CERTA — OOO “NPP “Spektr”, Novocheboksarsk |
|---|---|
| Type | primer-enamels |
| Base | organosilicate composition; organic solvents |
| Colour | grey, white, yellow, red, bright red, black, blue |
| Packaging | 25 kg |
| Application method | at least 2 coats |
| Application temperature | from −20 °C to +40 °C |
| Drying | intercoat drying 120 min at −20 °C, 90 min at 0 °C, 60 min at +20 °C; full properties in 72 h at +20 °C |
| Key properties | Corrosivity categories: C1–C3 per ISO 12944-2, Service temperature: from −60 °C to +150 °C |
| Shelf life | 1 year from the date of manufacture |
| Standards | TU 2312-002-49248846-2002; ISO 12944-2 |
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.
Polyorganosiloxane coating for metal, concrete and reinforced concrete structures in aggressive gas-air media, C1–C4 per ISO 12944-2.
Silicone primer-enamel up to +700 °C for metal and concrete: chimneys, flue ducts, pipelines, boilers, vessels and tanks.
One-component cold galvanising material with 96 % zinc in the dry film for steel structures, power line towers and hydraulic structures, up to +350 °C.
Chemical-resistant organosilicate composition for flue ducts, chimneys, heat exchangers and equipment of chemical and oil refining plants.
Radiation-resistant decontaminable organosilicate composition for concrete, brick, reinforced concrete, tunnels and NPP power unit rooms.