Soudafoam window and door SWS is a one-component, self-expanding, ready to use polyurethane foam with elastic properties, which allow the foam to follow the movement of the joint and keep its insulation properties for many years. It is 3 times more flexible than standard PU Foam and has excellent stability (no shrinkage or post-expansion). Properties of Soudal Soudafoam 3 times more flexible then standard PU foam Airtight (see IFT-report) Water Vapour Open Excellent stability (no shrinkage or post expansion) High filling capacity Good adhesion on all surfaces (except PE, PP and PTFE). High insulation value, thermal and acoustic Very good bonding properties. Very precise to dose. Low expansion Elastic and compressible. Freon free (not harmless to ozone layer and greenhouse effect) Fast curing Specifications Colour: BluePackaging: 750ml AerosolQuantity: Box of 12