Ronseal Expanding Foam

The 500ml Ronseal Quick Drying and Expanding Foam Filler offers increased capacity for larger projects and multiple repair jobs. This generous size canister is perfect for professional tradespeople or extensive DIY work, providing excellent value when tackling substantial filling tasks on interior and exterior surfaces. The quick drying formula works on wood, metal, glass, and masonry, expanding to 2.5 times its initial volume to fill gaps and cavities of any size. The trigger applicator ensures smooth, consistent application with minimal waste, whilst the advanced liquid foam delivers superior insulation against heat, sound, and moisture throughout your repairs.