For Windows, Doors, Fiber Cement And Vinyl Siding, Hardboard, Pressboard, And OSB. Permanently Flexible. Non-Flammable. Paintable. Mildewcide Added To Protect Cured Sealant. Dries To A Gloss Sheen. Cleans Up With Soap And Water. Meets Or Exceeds Federal Spec. TT-S-00230C, Type II, Class A And ASTM C 920, Grade NS, Class 25. Covers Approximately 14 Lin. Ft. At A 3/8" Bead.