OSI QUAD Advanced VOC Formula Window, Door & Siding Sealant is specially designed for sealing around windows, doors, fiber-cement siding, vinyl siding, roofing and gutters. It bonds without a primer to most common substrates like cedar, fiberglass, aluminum, masonry and concrete. • all-weather, superior performance • self tooling, for wet or dry surfaces • will not crack or yellow & resists dirt & dust • permanently flexible & paintable • 4'' professional nozzle • no air pops, will dispense smoothly upon extrusion from the cartridge Not recommended for: • filling nail holes • joints deeper than 3/8" (9.5 mm) without the use of backing material or for applications less than 1/4" in thickness • use on log homes • sealing expansion joints, including butt joints • use inside occupied structures • continuous water immersion • bonding polystyrene foams and polypropylene or polyethylene plastics • use as a traffic bearing sealant