BK-635PU 1K PU sealant clear glossy

1K PU sealer in transparent or colored for indoor and outdoor use, frost-resistant and UV-resistant. Suitable as a stone carpet binder with very high adhesion, as well as for priming and sealing. Can also be used as a topcoat, top sealing, or protective sealer for decorative chips that have been previously sprinkled into an epoxy resin floor coating. Floor sealer for concrete, wood, tiles, natural stone wall cladding, and much more. Remains flexible even in cold conditions. Can be applied as a thin rolled coating or as a thick coating (in multiple coats, max. 250g/m² per coat) in bubble-free layers. UV-stable sealer for PUR and epoxy resin coatings outdoors.

Important notes

• after sealing, we recommend de-airing the surface several times with the BE-76W spiked roller
• available in various RAL colors
• can also be added to BK-633PU 1K PU for vertical surfaces: ensures faster drying, improves stability, and makes it easier to apply marble chip stone carpets on vertical surfaces such as plinths, steps, walls, and much more.

Dries quickly, offers easy application - no mixing of two components required. Ideal for balconies, patios, workshops, garages, carports. Excellent resistance to mechanical and chemical stress. Does not foam or form bubbles at high humidity or upon accidental contact with water. Cures even at low temperatures. Relatively insensitive to moisture during curing. Please always remember to apply a test coat and test material compatibility beforehand. When applied to an untreated and open-pored floor, a color-deepening (wet effect) effect may occur, depending on the condition and absorbency of the substrate.

Can be rolled on at max. 250g/m² per coat. The 1K PU reacts with the air and cures through moisture cross-linking. Opened containers must be processed promptly.

Possible applications

- Stone carpet binder, primer, and sealer
- Binder for colored quartz coatings
- Floor sealer
- Decorative chip sealer
- Roof sealer

Consumption

- Stone carpet binder: approx. 1kg per 25kg of marble chips
- Primer: max. 250g/m² per coat
- Stone carpet sealer: max. approx. 250g/m² per coat
- Floor sealer for concrete, tiles, wood, etc.: max. 250g/m² per coat
- Roof sealer: max. 250g/m² per coat

Quality pays off

- 1K PU binder and sealer for floor surfaces
- Easy application
- No thinning required
- Excellent weather and UV resistance
- Excellent heat resistance
- Excellent mechanical load-bearing capacity
- Good chemical resistance
- Water vapor permeable
- Flexible

Technical specifications

- Gloss level: Satin
- Minimum application temperature: 6°C
- Walkable at 20°C: after 6 hrs.
- Dust-dry at 20°C: after approx. 2-3 hrs.
- Reworkable at 20°C: after approx. 6 hrs.
- Shelf life: unopened, min. 12 months
- Max. 250g/m² per coat