Elakor-PU Lak for Stone, Brick — polyurethane impregnation with a wet stone effect
Transparent polyurethane varnish-impregnation for stone, brick, concrete and concrete tile with a “wet stone” effect.

The SK PROF line primer is supplied ready to use and cures by air moisture, forming a transparent amber film with a gloss of 82–87 %. It primes concrete, terrazzo, tile, cement self-levelling floors, brick, wood and plywood under any polyurethane coatings, or works as a stand-alone protective impregnation. Adhesion to concrete is 6.2 MPa, to magnesia concrete 3.68 MPa, fire hazard class KM1 (V1, D1, T2, RP1); according to the technical data sheet, the primer is approved for food and pharmaceutical plants and healthcare institutions.
| Manufacturer | Elakor — OOO “TEOKHIM-PROM”, Moscow Region |
|---|---|
| Type | floor primers |
| Use | production workshops, warehouses and logistics, car parks and ramps, retail and public premises, food and pharmaceutical, wet rooms |
| Base | one-component moisture-curing polyurethane impregnating primer for professional use; composition: urethane prepolymers, organic solvents, functional additives |
| Colour | transparent amber liquid; film transparent, amber |
| Packaging | metal pail 20 kg; drum 200 kg |
| Application method | Priming of floors, walls, ceilings and structures under any polyurethane coatings; stand-alone protective impregnation. Substrates: concrete, sand concrete, terrazzo, concrete tile, cement self-levelling floors, stone, slate, brick; wood, plywood, cement-bonded particleboard, particleboard. Ready to use; rollers, brushes, airless spraying; 1-2 coats under a coating, 2-3 coats as an impregnation. Surface moisture not more than 4 wt%, relative air humidity not more than 80%. |
| Application temperature | air and surface: from minus 30°C to +25°C; primer temperature: from +10°C to +20°C |
| Curing | drying time to degree 3 at +20°C – not more than 6 h; drying between coats 3-8 h depending on temperature and humidity |
| Key properties | solids content at least 45%; viscosity (VZ-4 cup) not more than 21 s; density 0.98 kg/l; service temperature range from -60°C to +120°C (up to 30 min – up to +180°C); water absorption not more than 0.1%; ultimate film tensile strength (shear) at least 65 MPa; elongation at least 12%; impact strength at least 100 cm; hardness (ME-3/TML) at least 0.6/0.4 relative units; Shore D at 28 days 70-72; flexibility not more than 1 mm; gloss at 60° 82-87%; adhesion to concrete M750 (B55) 6.2 MPa (failure in concrete), to magnesia concrete 3.68 MPa; abrasion resistance 37 kg/µm, 1.5 g/m²; Taber abrasion CS-10, 1 kg, 28 days – 5.5 mg; fire hazard class KM1 (V1, D1, T2, RP1); chemical resistance: water, salt and alkali solutions of any concentration, acid solutions up to 10-20%, oils and fats of all kinds, organic solvents, petrol, diesel fuel |
| Consumption | 100-300 g/m² per coat |
| Shelf life | 8 months in the manufacturer's original packaging; store and transport at temperatures from -40°C to +25°C |
| Standards | Certificate of conformity (fire safety); Certificate of conformity; Approval for use in children's and healthcare institutions; NIKIMT report “Decontaminability and radiation resistance”. |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Transparent polyurethane varnish-impregnation for stone, brick, concrete and concrete tile with a “wet stone” effect.
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