Evo-Stik-Fire-Retardant-Foam-Filler-Evo-Stik-30811859-p-This-foam-filler-from-Evo-Stik-is-a-modified-single-component-polyurethane-foam-&-is-ideal-for-filling-or-sealing-joints-&-gaps-which-require-fire-resistant-properties-The-foam-expands-quickly-after-application-&-cures-to-a-fine-honeycomb-structure-This-foam-has-excellent-thermal-&-acoustic-qualities-&-can-be-bonded-to-most-building-materials-p-Evo-Stik-132658-Fire-Retardant-Foam-Filler-700ml