FDP824 is primarily a foam compression sealant. The soft foam is predominantly closed cell, with an acrylic pressure sensitive adhesive coated on one side, and a removable paper release liner on the other non-adhesive face reducing dimensional change during application. This product displays good resistance to dilute acids and alkalis, and very good UV light resistance. FDP824 will act as a water seal and air/dust seal when compressed. Minimum 30% compression required to effect a water seal. Applications include roofing and cladding seals, heating and ventilation, forms a compression water seal, forms a compression air/dust seal, and for gap filling of irregular surfaces