Low-Expansion Foam Gun Foam 750 ml UNIPAK model 6810755

UNIPAK Low-Expansion Foam Gun Foam 750 ml model 6810755 is a ready-to-use polyurethane foam supplied in a 750 ml can for professional application with a foam gun. The formulation provides controlled low expansion and stable curing, making it suitable for precision filling and sealing tasks where excessive swelling would be problematic. It is intended for use around windows and doors, for sealing gaps around pipes and fittings, and for improving thermal and acoustic insulation in building joints and cavities.

Advantages

The low-expansion formula reduces post-application overfill and minimizes the need for trimming, enabling accurate joint filling and neat finishes. The product cures to a stable foam with good adhesion to common building substrates, offering reliable sealing and thermal insulation properties. Supplied in a can compatible with standard foam guns, it allows controlled dispensing and improved application speed compared with manual-cup systems.

Suitable for

• Filling and sealing narrow joints around windows and doors
• Insulating and sealing gaps around pipes, conduits and fittings
• Soundproofing cavities and reducing drafts in walls and frames
• Applications requiring minimal post-application trimming and precise foam placement

Key specifications

• Volume: 750 ml can designed for use with a foam gun
• Type: Low-expansion polyurethane foam
• Application: Gun-dispensed for controlled flow and accurate dosing
• Curing behavior: Controlled low expansion with stable, closed-cell structure after curing
• Adhesion: Suitable for use on common building materials such as wood, concrete, brick and many plastics (substrate compatibility should be checked prior to use)

How to use

Shake the can thoroughly before attachment and follow the foam gun manufacturer’s instructions to secure the can to the applicator. Apply to clean, dry surfaces, keeping the bead volume moderate to allow for the low-expansion behaviour. Fill gaps and joints incrementally; leave space for the foam to cure and avoid overfilling. After curing, excess foam can be trimmed and the repaired area finished with sealant or paint if required. Observe recommended ambient and substrate temperature ranges for optimal curing.

Usage recommendations

Use appropriate personal protective equipment, such as gloves and eye protection, and ensure adequate ventilation when applying the foam. Store unused cans upright in a cool, dry place away from direct heat sources. Dispose of empty or uncured cans in accordance with local regulations.