Rooflight Shop

DOWSIL™ 791 Weatherproofing Silicone Sealant is a single-component, low modulus, neutrally curing sealant specifically formulated for weatherproofing tasks in both commercial and residential settings. It offers outstanding adhesion without priming to a wide array of porous and non-porous surfaces, ensuring reliable and durable sealing performance.

Double-sided, high-adhesion PVC tape designed specifically for structural spacer systems in glazing applications. It features an open-cell construction that facilitates the complete curing of structural silicones from every angle, ensuring a strong and reliable bond. The tape is coated with a durable acrylic adhesive that allows for quick rebound from compression, maintaining its integrity and performance. The product's open-cell design has been rigorously tested according to ASTM E96-2005 standards for water vapor transmission, confirming its effective airflow structure. Additionally, it has undergone thorough testing and received approval from The Dow Chemical Company, attesting to its quality and suitability for structural glazing applications.

It presents an alternative to BBA-certified lead flashing, introducing the Lead R roll. Available in both smooth and textured finishes, and in a variety of sizes, this product offers versatility and choice for your flashing needs.