SK-PROTEKT primer-enamel — single-coat polyurethane coating for metal
Polyurethane primer-enamel for steel structures and equipment; a single coat lasts at least 15 years in UKhL1 and KhL1 climates.

Among the polyurethane enamels of Snezhinskie Kraski, SK-MET stands out for its heat resistance in a dry non-aggressive environment up to +150 °C. The enamel serves as a topcoat over the SK-PUR, SK-PROTEKT and SK-TSINK primers and over the SK-EPOKSID-TS + SK-EPOKSID-MIO scheme, and also as a finish in fire protection systems. With the SK-EPOKSID-MIO primer-enamel it gives a system of categories C5-I and C5-M per ISO 12944, while the scheme with SK-EPOKSID-TS is designed for OM1 and at least 16 years.
| Manufacturer | Snezhinskie Kraski — OOO “ZLKS”, Yekaterinburg |
|---|---|
| Type | polyurethane enamels |
| Use | steel structures, bridges, equipment, oil and gas |
| Base | two-component polyurethane; hardener — aliphatic lightfast polyisocyanate |
| Colour | to the RAL catalogue; semi-gloss coating |
| Application method | airless spray (nozzle 0.28–0.43 mm, 16–40 MPa); air spray (nozzle 1.7–3.0 mm, 0.25–0.4 MPa); roller; brush; solvent “SK-PUR” up to 10 % / 20 % |
| Application temperature | from −10 to +40 °C (from +5 to +40 °C recommended); relative humidity max. 80 %; surface 3 °C above the dew point |
| Drying | pot life at least 2 h; dust-free max. 1.5 h, tack-free max. 2 h at 20 °C; next coat after drying to degree 3; maximum interval up to 6 months; full cure 7 days (3 days with hot drying) |
| Compatible materials | topcoat over polyurethane or epoxy primers and primer-enamels: SK-PUR, SK-PROTEKT primer, SK-TSINK, SK-EPOKSID-TS + SK-EPOKSID-MIO; finish in fire protection systems |
| Shelf life | 24 months from the date of manufacture; storage from −40 to +40 °C in the manufacturer’s sealed containers |
| Standards | TU 20.30.12-027-51472338-2017; STO-01393674-007-2022 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Polyurethane primer-enamel for steel structures and equipment; a single coat lasts at least 15 years in UKhL1 and KhL1 climates.
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