BK-636PU 2K PU Primer for Interior and Exterior Use
Free shipping within Germany
Free returns
Description
2K PU primer for indoor and outdoor use - universally applicable, fast-curing, solvent-free 2K polyurethane primer for indoor and outdoor use. The primer is also suitable for indoor use. This 2K system also allows for application at low temperatures and rapid curing even in low humidity.
If you plan to seal and waterproof untreated asphalt, bitumen, stone, and concrete surfaces, we recommend applying this BK-636PU primer beforehand to ensure excellent adhesion to most common construction surfaces. BK-636PU prevents rising moisture from pushing up and delaminating the seal and waterproofing over time.
The rapid drying of the primer allows for the sealing and waterproofing of common construction surfaces on the same day in the second step with our BK-635PU 1K PU sealant in clear or tinted in various colors.
Your benefits
- Blocks oils from bitumen membranes and asphalt
- Universally applicable
- Solvent & VOC-free
- Very fast curing
- Recoatable after 2-3 hours
- Excellent adhesion to most common construction surfaces
- Application possible at very low temperatures in winter
Matching additional products
- BK-635PU 1K PU sealant
- BK-605PU stone resin set for outdoor use
- BE-79W short-pile paint roller
- LS-565 rust stain remover for stone
- BE-800 concrete cleaner
Product data
- Color: clear
- Mixing ratio: 2 parts component A : 3 parts component B
- Working time: approx. 30 min, depending on temperature and ambient humidity
- Coverage: min. 100 g/m² per coat, depending on the substrate
- Application: roller, squeegee, spray
- Tool cleaning: LS-711 thinner
Drying / Temperature
- Tack-free at 20°C: after approx. 2 hours
- Recoatable at 20°C: after approx. 2-3 hours
- Application temperature: +5°C to +35°C
- Storage: 12 months at temperatures of +5 to +25°C
- Moisture in the substrate: < 5%
- Relative ambient humidity: < 85%
- Dew point: the temperature must be at least >3°C above the dew point.
Work quickly with the primer, as the resulting exotherm can cause the mass to heat up rapidly and even begin to smoke. Therefore, pour the mass onto the substrate and spread it quickly and evenly. We recommend sanding substrates that will not be further processed on the same day with BK-705 quartz sand. If you wait longer than 24 hours, the primer must be sanded with sandpaper before you continue working.
Substrate preparation:
Substrates must be structurally sound and free from separating layers (e.g., grease or wax), cracks, loose parts, hollow areas, and burrs. Substrates such as reinforced concrete, screed, wood, fiber cement, old but well-adhering acrylic, bitumen, and foil coatings, as well as sanded tile surfaces, can thus be primed quickly. Plastics must be tested beforehand by the applicator for adhesion. Grind the substrate using diamond grinding discs, sandblasting, or shot blasting. Structurally sound bituminous substrates must be thoroughly cleaned beforehand with a high-pressure water jet. No thinning is permitted on bituminous substrates, as the solvent will melt the bituminous substrate.
Wear appropriate protective clothing during application, such as safety goggles, disposable gloves, and, if necessary, respiratory protection masks.
Mixing:
Mix both components using a low-speed mixer for approx. 90 seconds into a homogeneous mass. Then transfer the material to a mixing bucket and mix the mass for approx. another 30 seconds to avoid mixing errors. The material is now workable for approx. 15-30 minutes, depending on the temperature, ambient humidity, and container size.
Technical specifications
| Property | Value |
|---|---|
| Application temperature | +5 °C to +35 °C |
| Suitable for | Asphalt, bitumen, concrete |
| Application | Roller, rubber squeegee, spraying |
Recommended Layering
Areas of application
Frequently Asked Questions
Customers also bought
-
Floor sealerBK-635PU 1K PU sealant clear glossyCHF 38.00 CHF 55.00 -
Short-pile paint rollersBE-79W Short-Pile Paint Roller for Floor CoatingCHF 22.00 -
Painter's telescopic poleBE-77W Telescopic Pole for Paint RollerCHF 12.00 CHF 21.00 -
Stone Carpet Flooring KitBK-600EP Interior Stone Carpet Kit with BinderCHF 64.00 CHF 83.00 -
Paint mixer paddleBE-17W Stirring Paddle Paint Can Stirrer Plastic 40 cmCHF 10.00 CHF 21.00
