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Elakor-PU Grunt-25 — repair polyurethane primer for old coatings
ELAKOR

Elakor-PU Grunt-25 — repair polyurethane primer for old coatings

Floor primers

When a worn self-levelling or paint-on floor needs renewing, this primer serves as a bonding layer between the old epoxy or polyurethane coating and the new finish. It is also suitable for very dense substrates — concrete and sand concrete M350 and above, stone, aceid — and for protective impregnations. The material has low viscosity and a non-volatile content of at least 23 %, and can be applied from −30 to +25 °C; the film withstands a tensile stress of at least 65 MPa, Shore D hardness is 70–72, fire hazard class KM1.

Specifications

ManufacturerElakor — OOO “TEOKHIM-PROM”, Moscow Region
Typefloor primers
Useproduction workshops, warehouses and logistics, car parks and ramps, retail and public premises, food and pharmaceutical, wet rooms
Baserepair one-component moisture-curing polyurethane primer; composition: urethane prepolymers, organic solvents, functional additives
Colourtransparent amber liquid; film transparent, amber
Packagingdrum 180 kg
Application methodFor repairs – priming of old polyurethane and epoxy coatings and self-levelling floors; priming of very dense surfaces (concrete and sand concrete M350 and above, stone, aceid); protective impregnations. Medium-pile polyamide rollers (12-16 mm nap); 1-2 coats under a coating, 2-3 as an impregnation. Surface moisture not more than 5 wt%; relative air humidity not more than 80%.
Application temperaturesurface and air: -30°C…+25°C
Curingdrying time to degree 3 at +20°C – not more than 6 h; drying between coats 3-6 h
Key propertiesviscosity (VZ-4 cup) not more than 11 s; non-volatiles at least 23%; density approx. 0.91 kg/l; service temperatures in a dry environment from -60°C to +100°C, in a liquid environment from -60°C to +80°C; water absorption not more than 0.1%; film tensile strength at least 65 MPa; elongation at least 12%; Shore D at 28 days 70-72; flexibility not more than 1 mm; abrasion resistance 37 kg/µm (GOST 20811, method A); Taber abrasion CS-10, 1 kg – 6 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
Consumption150-250 g/m² per coat
Shelf lifestore and transport at temperatures from -40°C to +25°C
StandardsCertificate 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.

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