SK-TSINK — moisture-curing zinc-rich primer for all-season application
Polyurethane zinc-rich primer for bridges, tanks and marine structures, at least 80 % zinc in the coating, applied from −15 °C.

This epoxy-polyamide primer-enamel contains micaceous iron oxide and zinc phosphate, and its role in a system depends on the scheme: stand-alone coating, intermediate coat over SK-EPOKSID-TS, primer under the SK-PROTEKT and SK-MET enamels or under the ANTIPLAM-K fire protection. It is used on the outer and inner surfaces of tanks and vessels, process equipment, bridges, marine structures, and on concrete together with SK-BETON. The SK-EPOKSID-MIO + SK-MET system meets categories C5-I and C5-M per ISO 12944, and the material is included in the regulations of PJSC Uralkali.
| Manufacturer | Snezhinskie Kraski — OOO “ZLKS”, Yekaterinburg |
|---|---|
| Type | primer-enamels |
| Use | steel structures, bridges, tanks, oil and gas, equipment, chemical plants, marine and port structures, concrete |
| Base | two-component epoxy-polyamide; contains micaceous iron oxide and zinc phosphate |
| Colour | grey or red-brown (shade not standardised); other colours by agreement |
| Application method | airless spray (nozzle 0.33–0.53 mm, 16–45 MPa); air spray (nozzle 1.9–3.0 mm, 0.20–0.45 MPa); roller; brush; solvent “SK-REZERV 1” up to 10 % / 20 %; 1–2 coats |
| 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; minimum recoat interval 3 h at +20 °C (72 h at −10 °C, 2 h at +40 °C); maximum interval up to 3 months; full cure 7 days; hot drying permitted |
| Compatible materials | on its own; intermediate coat over zinc-rich primers (SK-EPOKSID-TS); primer under polyurethane or acrylic enamels (SK-PROTEKT, SK-MET); primer under fire protection (ANTIPLAM-K); on concrete with SK-BETON |
| Shelf life | 24 months from the date of manufacture; storage from −40 to +40 °C in the manufacturer’s sealed containers |
| Standards | TU 20.30.12-051-51472338-2017; 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 zinc-rich primer for bridges, tanks and marine structures, at least 80 % zinc in the coating, applied from −15 °C.
Gloss or semi-gloss alkyd-urethane RAL enamel for rolling stock; in a system with the 011M primer it lasts 8 years.
Semi-gloss RAL enamel for bridges and chemical plants; in a system with SK-EPOKSID-MIO it lasts 10 years in a urea environment.
Two-component polyurethane primer for metal, concrete and reinforced concrete, permitted for containers with bulk food products.
Polyurethane primer-enamel for steel structures and equipment; a single coat lasts at least 15 years in UKhL1 and KhL1 climates.
Paste-like polyurethane for manual repair of local defects in the MASTIKOR coating in the factory and in the field, adhesion to steel at least 7.0 MPa.