KO-815 Elcon — heat-resistant silicone varnish up to +300 °C
Colourless silicone varnish for metal and concrete up to +300 °C, dries at 150 °C; serves as the base of KO-813 silver enamel.

The manufacturer’s flagship enamel on polyorganosiloxane resin for steel structures, pipelines, power equipment and concrete. The heat limit depends on the colour: black withstands up to +1,200 °C, other shades 700 °C, 600 °C or 400 °C. No priming is required, it can be applied at air temperatures from −30 °C, and the declared service life of the coating is up to 15 years; the manufacturer publishes a report on accelerated climatic tests by NII LKP “Lakokraspokrytie”.
| Manufacturer | Elcon — OOO “Elcon”, Novocheboksarsk |
|---|---|
| Type | heat-resistant coatings |
| Base | one-component enamel on polyorganosiloxane resin; aromatic solvents |
| Colour | black (up to 1,200 °C), dark chocolate, graphite, gold, copper, silver, red-brown (up to 700 °C), green, white (up to 700 °C), anthracite (up to 600 °C), grey, light grey, blue, bright red, red, yellow, brown, light blue, beige, orange (up to 400 °C); tinting to RAL K5 |
| Packaging | 25 kg; 0.4 kg and 0.8 kg; aerosol 520 ml |
| Application method | air spray, roller, brush; intercoat drying 30 min; surface preparation St 3 or Sa 2–Sa 2.5, degreasing with Elcon R; thinner Elcon R, o-xylene, toluene (not more than 10 %); concrete — in three coats |
| Application temperature | from −30 °C to +40 °C; relative air humidity not more than 80 % |
| Drying | to degree 3 — not more than 2 h at (20±2) °C or 30 min at (150±2) °C; coating drying 15 min, final — at least 24 h; heat curing: 30 min at 150 °C, ramp-up to service temperature 3.5 °C/min, hold 1 h; transport and installation — not earlier than 3 days |
| Key properties | Heat resistance: from −60 °C to +1,200 °C (black); 700 °C, 600 °C or 400 °C depending on colour, Non-volatile matter by weight: 35–55 % (depending on colour), Impact strength (U-1A): at least 40 cm, Adhesion: not more than 1 point, Resistance to alternating heating to 600 °C and water: at least 5 cycles, Resistance to static exposure at 20 °C: water 100 h, petrol 72 h, industrial oil 72 h, Coating service life: up to 15 years |
| Compatible materials | no priming required |
| Shelf life | 25 kg — 24 months; 0.4 and 0.8 kg — 36 months; aerosol — 60 months; storage from −30 °C to +40 °C |
| Standards | TU 2312-237-05763441-98 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Colourless silicone varnish for metal and concrete up to +300 °C, dries at 150 °C; serves as the base of KO-813 silver enamel.
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