When the job calls for strong, reliable sealant, accept only J-B Welds Clear Silicone All-Purpose RTV Sealant and Adhesive. This 100% silicone all-purpose RTV sealant and adhesive boasts a fast 1-hr. cure time and a no-shrink formula. Its waterproof, mold- and mildew-resistant, and cures clear, making it ideal for windshields, windows, lens housing, door frames, tubs, showers, aquariums, and so much more.Made in USA. Size: 3 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.