Soudal Genius Gun Gap Filler 500ml Expanding Foam
Rated 4.6 / 5814 ratings on Amazon →
Pros
- Patented Genius Gun applicator allows precise, single-handed application
- High thermal and acoustic insulation seals draughts around frames and pipework
- Well-established trade brand with a strong review track record
Cons
- Expanding foam needs trimming back once cured for a neat finish
Specifications
- Material
- PU Expanding Foam
- Price
- Budget
- Brand
- Soudal
Related attributes
Length
Material
Best For
Warranty
Not sure which draught proofing & weatherstripping is right for you? Read our Best Draught Proofing & Weatherstripping UK (2026) guide.