BOSS Polyurethane Sealant

BOSS® PU 25 is a one-component moisture-curing, polyurethane sealant. 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 50% (+/-25%) of the joint width.

Features:

• Can be painted with all water-based paints and other systems.
• Excellent primer-less adhesion on many materials.
• Excellent resistance to many chemicals.
• Good weather and UV resistance.
• High viscosity with permanent elasticity after curing.
• Ideally suited for application in warm and humid climates.

Applications:

• Can be used as a seam sealer for traditional welding or spot welding.
• Bonding of panels, ACP, roofing sheets, and so on.
• Supple bonding and sealing in the automotive industry, especially on surfaces that vibrate – bus-bodies, caravans, and containers.

BOSS® PU 50 is a fast-curing, one-component, moisture-curing polyurethane adhesive sealant, that turns into a flexible, durable and resistant elastomeric seam and has very good adhesion to most industrial materials.

Features:

• Applicable in warm and humid climates.
• Can be painted with all water-based paints and other systems.
• Excellent resistance to many chemicals.
• Good weather and UV resistance.
• High viscosity.
• Medium open time.
• Permanently elastic after curing.
• Excellent primer-less adhesion on many materials such as aluminium, steel, GRP, epoxy coatings, and so on
• Watertight.

Applications:

• Adheres without primer to the most common substrates, such as glass, anodized aluminium, lacquered metal, wood, FRP, and concrete.
• Supple bonding and sealing in the automotive industry, especially on surfaces that vibrate – bus-bodies, caravans, and containers.

BOSS® PU 65 is a fast-curing, one-component, moisture-curing, polyurethane adhesive sealant that turns into a flexible, durable, and resistant elastomeric seam that has very good adhesion to glass, aluminium, most lacquered metal, polyester, stone, etc.

Features:

• Cures to a tough, flexible rubber.
• Excellent weather resistance.
• High elasticity and excellent tear, vibration resistance.
• Non-sag formulation.
• Paintable.
• Primer-less adhesion to metal, glass, and building & industrial materials.
• Tools easily.

Applications:

• Ideal for bonding the windshield of cars.
• Suitable for bonding various industrial materials for truck & bus-bodies, shipbuilding, sandwich panels, and many other industrial applications.

BOSS® PU LM is a polyurethane adhesive sealant that is fast-curing, one-component based and moisture-curing. Once set, it turns into a flexible, durable, and resistant elastomeric seal and has very good adhesion to most industrial materials.

Features:

• Excellent resistance to many chemicals.
• Excellent resistance to UV radiation.
• Permanently elastic after curing.
• Very easy to apply.
• Excellent adhesion on many materials.

Applications:

• All usual building joints with high movement.
• Connection joints between windows, doorframes, and walls.
• Expansion joints between many different construction materials.
• Joints with large movement.
• Sealing cracks in brickwork and concrete.

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.

Features:

• 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.

Applications:

• 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