OSI H2U Window, Door, & Siding Sealant - White

OSI H2U Window, Door, & Siding Sealant is a high-performance, versatile sealant designed for both interior and exterior applications. Its superior acrylic urethane formula offers exceptional adhesion, flexibility, and durability, making it ideal for sealing around window and door frames, sill plates, electrical and plumbing penetrations, and other areas prone to water and air infiltration. This OSI H2U acrylic urethane sealant is engineered to create long-lasting, watertight seals on siding, trim, and other surfaces. Once applied, OSI H2U dries to a glossy sheen, enhancing the finished appearance of your project. Its also effective for use along baseboards, floors, and wall-to-floor joints, providing a smooth, seamless seal for a clean, professional look. Whether for residential or commercial use, OSI H2U ensures reliable protection against the elements while maintaining flexibility for years to come.