BOSS PU SL Polyurethane Sealant
BOSS PU SL Polyurethane Sealant is a premium, self-leveling, one-component elastomeric sealant designed for horizontal joint sealing applications in construction and industrial environments. This advanced sealant is formulated to deliver exceptional performance in sealing expansion joints, control joints, and other flat surfaces where a smooth, even finish is required.
BOSS PU SL is specifically engineered for use on substrates such as concrete, asphalt, metal, and stone. Its self-leveling properties ensure that it flows smoothly into joints and gaps, creating a uniform, watertight seal without the need for tooling. This makes it ideal for sealing joints in flooring, parking decks, driveways, sidewalks, and other horizontal surfaces exposed to traffic and environmental stress. The sealant's strong adhesion and flexibility allow it to accommodate joint movement caused by thermal expansion, contraction, and structural shifts, preventing cracking and joint failure.
BOSS® PU SL is a polyurethane sealant that is one-component and moisture-curing. Once set, it cures into a flexible, durable, and weather-resistant elastomeric sealant that has very good adhesion to most construction and industrial materials. It can accommodate cyclic joint movement of up to 50% of the joint width.
- Excellent chemical resistance.
- Good weather and UV resistance.
- No bubble formation.
- No staining on porous surfaces such as marble, granite, and other natural stones.
- Permanently elastic after curing.
- Self-levelling.
- Usable up to a max slope of 3%.
- Very easy to apply.
- Excellent adhesion on many materials.
Features:
- All usual horizontal building, connection, expansion, and dilatation joints.
- Can withstand long-term intense contact-immersion (up to 1 week) in combination with Primer 100
- Excellent for sealing of joints in environments where fuel and oil contact can occur.
- Resistant to splash and spillage contact from hydraulic fluids, fuels, lubricants, and oils.
- Sealing of construction joints in concrete floors