Moisture-repellent

and their seams to make them waterproof

X = Extreme Gun = Extremely powerful

One surface must be porous

tytan ultra frost 70 Size:870 ml Moisture-repellentTYTAN Ultra Frost 70 is a high yield M1 certified PU winter gun foam for installations, insulation, filling, and sealing. Thanks to new technology, the foam revolutionizes installation work during winter. The foam can be used at ambient temperatures as low as 20C. Post expansion is minimal, and the foam can be cut approximately 30 minutes after application. Ultra Frost adheres well to materials and does not crumble. Product Features: Yield: 65 70 L