KO-85 Elcon — colourless heat-resistant silicone varnish up to +250 °C
Colourless silicone varnish for metal, concrete, brick and asbestos cement up to +250 °C; the base of KO-814 silver enamel.

A colourless varnish on modified silicone resin with glyphthalic and melamine-formaldehyde resins, per GOST 11066-74 and TU 2312-011-49222195-2013. It withstands from −60 °C to +300 °C and is used on metal and concrete, as well as the base of KO-813 enamel (with aluminium powder 94 : 6) and a modifying additive for acrylic and alkyd paints and coatings. It dries to degree 3 in 1 h at 150 °C, and finally in not less than 24 h at 20 °C.
| Manufacturer | Elcon — OOO “Elcon”, Novocheboksarsk |
|---|---|
| Type | heat-resistant coatings |
| Use | steel structures, concrete |
| Base | silicone varnish: modified silicone resin with a solution of glyphthalic and melamine-formaldehyde resins; aromatic solvents |
| Colour | colourless |
| Packaging | 20 kg |
| Application method | air or airless spray, roller, brush, dipping; 2–3 cross coats with drying to “tack-free” 0.5–2 h; preparation St 3 or Sa 2–Sa 2.5, degreasing; concrete and plaster — in three coats |
| Application temperature | from −30 °C to +40 °C; relative air humidity not more than 80 % |
| Drying | to degree 3 — 1 h at (150±5) °C; final drying at least 24 h at (20±2) °C; full cure on heating; installation — not earlier than 3 days |
| Key properties | Heat resistance: from −60 °C to +300 °C, Non-volatile matter by weight: 33–37 %, Acid number: not more than 10 mg KOH/g (GOST) |
| Compatible materials | base for KO-813 enamel (KO-815 varnish + aluminium powder 94 : 6); modifying additive for acrylic and alkyd paints and coatings |
| Shelf life | 36 months from the date of manufacture; storage from −40 °C to +40 °C |
| Standards | GOST 11066-74; TU 2312-011-49222195-2013 |
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, concrete, brick and asbestos cement up to +250 °C; the base of KO-814 silver enamel.
Fast-drying zinc-rich primer for steel structures, bridges, oil and gas and power equipment; applied down to −15 °C.
Two-component semi-gloss polyurethane enamel for tanks, bridges, equipment and concrete; topcoat over Elcon Epoxy, from −60 °C to +125 °C.
Silver silicone enamel up to +400 °C for steel structures and equipment: on KO-85 varnish with aluminium powder, or one-component.
One-component primer-enamel for steel structures and equipment, applied over tightly adherent rust at temperatures down to −20 °C.
Silicone enamel for oil, steam and gas pipelines, chimneys and equipment; applied without primer, the black version withstands up to +700 °C.