KO-870 heat-resistant enamel is designed for steel structures, metal products and equipment heated up to +700 °C, as well as for concrete, brick and reinforced concrete surfaces. The binder is modified silicone resin with a solution of pentaphthalic resin; no primer is required underneath. The coating withstands cooling down to −60 °C, its pendulum hardness is at least 0.18 relative units and impact strength at least 40 cm; the enamel can be applied in frost down to −30 °C.
| Manufacturer | Elcon — OOO “Elcon”, Novocheboksarsk |
|---|---|
| Type | heat-resistant coatings |
| Use | steel structures, equipment, concrete |
| Base | one-component enamel on modified silicone resin with a solution of pentaphthalic resin; organic solvents |
| Colour | black (up to 700 °C), silver-grey (up to 650 °C), red-brown (up to 500 °C), white, grey, blue, bright red, red, yellow, brown, light blue, light grey, green (up to 400 °C); tinting to RAL K5 |
| Packaging | 25 kg |
| Application method | air spray, roller, brush; 2–3 cross coats with intercoat drying to “tack-free” 0.5–2 h; surface preparation St 3 or Sa 2–Sa 2.5 and degreasing; thinner Elcon R, o-xylene, toluene (not more than 10 %) |
| 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 0.5 h at (150±2) °C; coating drying 30 min at (20±2) °C, final — at least 24 h; full cure on heating in service; transport and installation — not earlier than 3 days |
| Key properties | Heat resistance: from −60 °C to +700 °C (black — 700 °C, silver-grey — 650 °C, red-brown — 500 °C, other colours — 400 °C), Non-volatile matter by weight: 35–45 %, Hardness by TML (pendulum A): at least 0.18 relative units, 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 3 cycles, Resistance to static exposure at 20 °C: water 48 h, petrol 48 h, industrial oil 48 h |
| Compatible materials | no priming required |
| Shelf life | 24 months from the date of manufacture; storage from −30 °C to +40 °C |
| Standards | TU 2312-010-49222195-2012 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Silicone enamel for steam pipelines, furnaces and steel structures up to +700 °C, as well as for painting concrete and brick in atmospheric conditions.
Silver silicone enamel up to +500 °C for steel structures and equipment: two-component per GOST 11066-74 or one-component per TU.
One-component primer-enamel for concrete walls, reinforced concrete structures and facades in mildly and moderately aggressive environments; stays vapour-permeable.
Silicone enamel for low-carbon steel parts over phosphated and non-phosphated surfaces, heating up to +700 °C.
Silver silicone enamel up to +400 °C for steel structures and equipment: on KO-85 varnish with aluminium powder, or one-component.
Colourless polyorganosiloxane varnish up to +350 °C for metal, concrete, glass and ceramics; imparts water repellency and frost resistance.
