For Windows, Soffit and Fascia
OSI® Pro-Series® Quad™ Window, Siding, Gutter & Roof Sealant Advanced Formula Sealant is capable of withstanding moderate expansion-contraction cycles, making it suitable for professional as well as do-it-yourself applications. It adheres without a primer to most common substrates like aluminum, brick, wood, concrete, vinyl, plastics, glass, etc.
