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Expanding PU Foams

Designed for sealing, filling and insulating, our expanding PU foams provide strong, airtight and weather resistant solutions for construction projects. Ideal for window and door installation, gap filling and perimeter sealing, these polyurethane foams offer excellent adhesion and ease of application for professional and DIY use.

STICK2 B1 Fire Rated Expanding Gun Foam Sealant STICK2 B1 Fire Rated Expanding Gun Foam Sealant - 0

STICK2 B1 Fire Rated Expanding Gun Foam Sealant

STICK2

From
£8.93
Stick2 Expanding Foam Gun Cleaner - A Dual Purpose, Solvent Based Solution for Cleaning STICK2 Stick2 Expanding Foam Gun Cleaner - A Dual Purpose, Solvent Based Solution for Cleaning STICK2

Stick2 Expanding Foam Gun Cleaner - A Dual Purpose, Solvent Based Solution for Cleaning

STICK2

From
£4.89
Stick2 Expanding Gun Foam Sealant STICK2 Stick2 Expanding Gun Foam Sealant STICK2

STICK2 Expanding Gun Foam Sealant

STICK2

From
£5.95
(6)
Stick2 One Component Polyurethane Handheld Expanding Foam With Nozzle STICK2 Stick2 One Component Polyurethane Handheld Expanding Foam With Nozzle STICK2

Stick2 One Component Polyurethane Handheld Expanding Foam With Nozzle

STICK2

From
£5.99
B2 Expanding PU Foam for Installation of Doors and Windows Bond-It B2 Expanding PU Foam for Installation of Doors and Windows Bond-It

B2 Expanding PU Foam for Installation of Doors and Windows

Bond-It

£128.20
BLUE 60 FR Expanding PU Foam Door Frame Sealant BLUE 60 FR Expanding PU Foam Door Frame Sealant - 0

BLUE 60 FR Expanding PU Foam Door Frame Sealant

STICK2

£18.90
Save
£0.34
B1 Fire Resistant Expanding PU Foam - Gun Grade or Own Nozzle Bond-It B1 Fire Resistant Expanding PU Foam - Gun Grade or Own Nozzle Bond-It

Bond-It B1 Fire Resistant Expanding PU Foam – Gun & Straw, 750ml

Bond-It

From
£15.10 | £15.44
MegaStik PU Adhesive for Installing Plasterboard, Insulation Boards, Floorboards and Roof Decking Bond-It

Bond-It Mega Stik PU Adhesive Foam 750ml

Bond-It

From
£9.99
Professional Gun Foam Applicator for use with Gun Grade Foams and Adhesives Bond-It Professional Gun Foam Applicator for use with Gun Grade Foams and Adhesives Bond-It

Bond-It Professional PU Foam Gun Applicator – 1m Long Reach

Bond-It

£38.55
(1)
Expanding Foam Gun Cleaner - A Dual Purpose, Solvent Based Solution for Cleaning Bond-It

Expanding Foam Gun Cleaner - A Dual Purpose, Solvent Based Solution for Cleaning

Bond-It

£68.03
Fix N Fill Expanding Foam In A Can - Gun Grade Or With Nozzle Bond-It Fix N Fill Expanding Foam In A Can - Gun Grade Or With Nozzle Bond-It

Fix N Fill Expanding Foam In A Can - Gun Grade Or With Nozzle

Bond-It

From
£57.72
Professional Gun Foam Applicator for use with Gun Grade Foams and Adhesives Bond-It Professional Gun Foam Applicator for use with Gun Grade Foams and Adhesives Bond-It

Professional Gun Foam Applicator for use with Gun Grade Foams and Adhesives

Bond-It

From
£11.71
(2)

What are expanding PU foams used for?

Expanding PU (polyurethane) foams are used for filling gaps, sealing around doors and windows, insulating cavities, and bonding building materials.

Does expanding foam expand after application?

Yes. PU foam expands as it cures to fill voids and create insulation and air-seal barriers.

Can PU foam be cut and shaped after curing?

Yes. Once fully cured, the foam can be trimmed, sanded, or shaped to fit recessed areas.

Is expanding foam suitable for outdoor use?

Many PU foams are suitable for exterior use, but check product specifications for UV resistance and weather durability.

How long does PU foam take to cure?

Curing time varies by product, but most foams become tack-free within minutes and fully cure within a few hours.

Can PU foam improve insulation performance?

Yes. Expanding foam provides thermal and acoustic insulation when used to fill gaps and cavities in building structures.