Alsan Foam Uni W Pro 35oz (Each)

ALSAN FOAM UNI W Pro 35oz is a single-component, polyurethane foam sealant that cures with ambient moisture. Packaged in a 35 oz (850 ml) can, it is designed for use in cold climates and offers exceptional thermal and sound insulation properties.

This high-yield foam is suitable for fixing and insulating window and door frames, sealing gaps, joints, and wall penetrations, as well as insulating around pipes and outlets. It is both mould-proof and waterproof once cured and can be over-painted to match surrounding surfaces. Its formulation ensures adherence to a wide range of substrates, including concrete, brick, wood, aluminum, galvanized steel, and compatible membranes from SOPREMA and RESISTO.

The product is applied using a foam gun and should be used with the can held upside down. Surfaces should be clean and slightly moistened for optimal bonding. The foam expands during application and should be applied in layers in dry conditions to avoid overfilling.

Key Features

• Cold-Weather Formulated: Effective in temperatures as low as -25°C (-13°F)
• High Yield: Expands to approximately 60 litres per 35 oz can
• Moisture-Curing: Reacts with ambient humidity for strong adhesion and durability
• Over-Paintable & Mould-Proof: For seamless and hygienic finishes
• Versatile Application: Compatible with a wide range of construction materials
• Pro Format: 35 oz can is ideal for high-volume use and professional applications

Best Suited For

• Insulating window and door frames
• Filling and sealing wall gaps, cavities, and penetrations
• Soundproofing and thermal insulation
• Sealing around pipes, outlets, and fixtures
• Use in cold-weather construction or renovations

Downloads

• Soprema Alsan FoamW 850 mL Brochure
• Soprema Alsan Foam Uni W Technical Data Sheet
• Soprema Alsan Foam Uni W Safety Data Sheet
• Soprema Sealants and Foams Guide