Elakor-PU Grunt-25 — repair polyurethane primer for old coatings
Bonding polyurethane primer for repairs: applied over old epoxy and polyurethane floors and very dense concrete.

The transparent Eko varnish combines food-contact approval with chemical resistance: it is used to coat surfaces in direct contact with bulk foods and drinking water at temperatures up to +40 °C and industrial floors with increased requirements for resistance to chemically active substances. The varnish is ready to use and is applied by roller, brush or airless spraying onto concrete, stone, brick, wood, metal and polymer coatings at temperatures from −30 to +25 °C. Gloss is 91–94 %, film tensile strength at least 64 MPa, Taber abrasion 5 mg.
| Manufacturer | Elakor — OOO “TEOKHIM-PROM”, Moscow Region |
|---|---|
| Type | varnishes and topcoats |
| Use | production workshops, warehouses and logistics, chemically resistant, food and pharmaceutical, wet rooms |
| Base | one-component chemically resistant food-grade polyurethane varnish, cured by air moisture; composition: urethane prepolymers, organic solvents, functional additives |
| Colour | transparent amber liquid; film transparent, slightly yellowish |
| Application method | Coatings in direct contact with bulk food products and drinking water at temperatures up to +40°C; industrial floors with increased requirements for resistance to chemically active substances. Substrates: concrete, sand concrete, cement self-levelling floors, stone, brick; wood; steels, aluminium, copper; polymer coatings. Ready to use; rollers, brushes, airless spraying. Relative air humidity not more than 80%. |
| Application temperature | surface and air: from minus 30°C to +25°C; varnish temperature: from +10°C to +25°C |
| Curing | drying time to degree 3 at +20°C and relative air humidity 70% – not more than 6 h; drying of a coat: above 0°C – 4-8 hours, below 0°C – 12-16 hours |
| Key properties | viscosity (VZ-4 cup) 30 s; solids content 58…60 %; density 1.00…1.02 kg/l; service temperature from -60°C to +100°C; water absorption not more than 0.1%; film tensile strength at least 64 MPa; elongation at least 15%; impact strength at least 100 cm; Shore D at 28 days 75…78; flexibility not more than 1 mm; gloss at 60° 91…94%; adhesion: tested on concrete up to B50, failure in concrete; abrasion 37 kg/µm (GOST 20811, method A); Taber CS-10, 1 kg – 5 mg; fire hazard class KM1; 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 | when applied over polymer coatings 120-150 g/m² per coat |
| Shelf life | 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.
Bonding polyurethane primer for repairs: applied over old epoxy and polyurethane floors and very dense concrete.
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