This 3M 4000 UV sealant is designed for marine applications above waterline. It's superior UV resistance properties make this an ideal cosmetic sealant. It cures to form a rubbery waterproof seal. It's flexibility allows for the dissipation of stress caused by shock, vibration, swelling or shrinking. Tack free in less than 2 hours and cure in 24 hours. Color: white only. 295 ml.