Sikaflex-221 is a one-component, moisture curing polyurethane designed for use as an all purpose sealant. It cures to a permanently elastic seal, is paintable and stainable, and bonds to aluminum, steel, fiberglass and wood with proper surface preparation. Comes in 10.3 oz. tubes of black or gray.
***Note: this chemical cannot be shipped to Alaska, Hawaii, Puerto Rico, and Catalina Island
***Canada orders: this chemical can only be shipped to Canada via ground or standard shipping options