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KO-868 CERTA — heat-resistant primer-enamel for chimneys, furnaces and boilers
CERTA

KO-868 CERTA — heat-resistant primer-enamel for chimneys, furnaces and boilers

Chimneys and flue ducts, furnaces, boilers, heat exchangers and process pipelines are the objects for which CERTA produces KO-868 primer-enamel. It is applied to steel and cement-sand substrates without primer; the black version is available for 700, 600 and 500 °C, the silver-grey for 650 and 600 °C. For atmospheric protection the range −60…+300 °C applies; painting is possible from −20 °C, and at sub-zero temperatures in thin coats.

Specifications

ManufacturerCERTA — OOO “NPP “Spektr”, Novocheboksarsk
Typeheat-resistant coatings
Baseone-component silicone enamel (primer-enamel); organic solvents
Colourblack (up to 700, 600 and 500 °C), silver-grey (up to 650 and 600 °C), white, grey, green, bright red
Packaging25 kg
Application methodair spray (working viscosity 20–25 s), airless spray (35–50 s), brush or roller (30–50 s); stripe coat on welds and edges; preparation Sa 2½ per ISO 8501-1 (St 3 permitted); solvent CERTACOR R, toluene, o-xylene (not more than 10 %; white spirit, solvent naphtha and petrol are not permitted)
Application temperaturefrom −20 °C to +40 °C; relative humidity not more than 80 %
Dryingintercoat drying 90 min at −30 °C, 60 min at 0 °C, 30 min at +20 °C; full properties in 72 h at +20 °C; for service above 100 °C — hot curing at commissioning: 1 h in air, heating (4±0.5) °C/min, at least 3 h at service temperature; for mineral oil and petrol media without heating — 30 min at 250–400 °C; installation — not earlier than 72 h
Key propertiesService temperature: from −60 °C to +700 °C depending on colour, Resistance to mineral oil, petroleum products, salts, No priming required
Compatible materialsapplied without primer; any primer used must not impair the properties of the system
Shelf life12 months from the date of manufacture; storage from −30 °C to +40 °C

Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.

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