OSI QUAD Series Caulk & Sealants

The OSI QUAD Series is engineered for tough jobs and tougher weather, offering professional-grade window and siding sealants that stand up to the elements. Whether you choose the gap-filling QUAD Foam for insulation and air sealing or the QUAD Max sealant for color-matched finishing, these products deliver outstanding adhesion and flexibility. With UV resistance, a temperature range of 0F to 140F, and 24-hour cure time, the QUAD line is made to perform in any season, rain, heat, or snow. Perfect for use on brick, vinyl, wood, PVC, and more, these sealants bond with a wide range of materials, making them a versatile addition to any toolbox. Durable and easy to apply, the OSI QUAD Series is trusted by contractors for reliable, long-lasting results across window, door, and siding projects.