Spray cork

Spray cork is an insulating sealant made from granulated cork that is bonded with adhesive and can be used in many ways for sound and heat insulation .

It is mainly used to seal connection joints between window frames and masonry, on doors, on partition walls and other structural elements . The sealant is also suitable for spraying expansion joints when laying floors.

Spray cork consists of fine-grain cork grist and an elastic binding agent. Usually it is also coated with dispersion. The many air-filled cells in the cork granulate make it an insulating material that reduces the passage of heat and cold and also has a soundproofing effect . Injection cork is one-component, viscoplastic and stable. It can be processed with a grout gun or by hand.

If only small quantities are required, you can make your own spray cork by crushing bottle corks in a food processor and mixing them with gum arabic and a little water .