Construction Foam Quantec PMPWS-750 Winter Subzero in Can 750 ml – low-temperature polyurethane foam

Quantec PMPWS-750 Winter Subzero is a 750 ml low-temperature polyurethane construction foam formulated for sealing, filling and bonding in cold conditions. Developed for winter use, this canister foam cures reliably at subzero temperatures to provide thermal and acoustic insulation, durable gap filling around window and door frames, and effective adhesion to common building substrates. The product is intended for both professional installers and experienced DIY users who require a foam that performs when ambient temperatures are low.

Advantages

The foam cures at low temperatures and maintains good yield and expansion control in cold weather, reducing the risk of incomplete polymerisation. It offers strong adhesion to materials such as wood, concrete, brick and many synthetic building surfaces, and provides long-lasting thermal and sound insulation. The 750 ml canister is sized for larger winter installation tasks while remaining compatible with standard dispensing guns, enabling precise application and reduced waste.

Suitable for

• Sealing gaps and joints around windows and doors during winter installations
• Filling cavities and voids in external walls and frames in subzero conditions
• Insulating and soundproofing mechanical and utility penetrations in cold weather
• Bonding and stabilising lightweight building components where low-temperature curing is required

Key specifications

• Form: one-component polyurethane foam
• Volume per can: 750 ml
• Intended use temperature range: formulated for subzero / low-temperature application
• Curing type: moisture-cure polymerisation
• Primary performance: thermal insulation, acoustic insulation, gap filling, adhesion
• Application method: dispensing gun compatible

How to use

Surface preparation: ensure surfaces are clean, dry and free of loose particles, oil or frost where possible. Shake the can well before use and attach to a compatible foam dispensing gun according to the gun manufacturer’s instructions. Apply foam from the bottom of the joint and fill gaps partially to allow for expansion. After curing, excess foam can be trimmed with a knife and the joint finished with sealant, paint or protective covering as required. Follow safety instructions on the can and ventilate the work area.

Usage recommendations

For best results in cold weather, store the can at recommended temperatures before use and warm it moderately if it has been exposed to extremely low storage temperatures, taking care not to exceed manufacturer guidance. Use personal protective equipment, avoid application on surfaces with active frost, and allow full cure time before subjecting the foam to mechanical stress or finishing treatments.