Foam Fillers

Expanding foam filler is used for gap filling, sound proofing and insulating. It can come in either hand held or gun grade depending on preference. It is important to note expanding PU foam needs moisture to be able to expand and cure, so if an area is dry then misting the area can be effective. If an area is too wet however the foam will not stick to it. For large holes it is advised to fill in stages, starting with the perimeter and letting it cure, and then continuing with additional layers. Excess foam can be scraped, sanded and then painted over. Fire rated expanding foam provides up to 240 minutes fire rating depending on the grade, designed to create a seal which prevents transfer of smoke and gas.

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