DOWSIL™ Silicone Sealants for Windows, Doors and Curtain Walls

DOWSIL™, formerly Dow Corning, provides a full range of professional silicone sealants specially designed for window, door and curtain wall applications. These products feature excellent weather resistance, high movement ability, reliable adhesion and long-term durability, making them widely used in commercial buildings, high-rise curtain walls, residential windows and doors, and insulating glass systems.

DOWSIL™ 791 Weatherproofing Silicone Sealant

DOWSIL™ 791 is a one-part, neutral-cure silicone sealant widely used for weather sealing in curtain walls and fenestration systems. It offers excellent resistance to UV radiation, ozone, rain and extreme temperatures, maintaining long-term flexibility without cracking or yellowing. With a movement capability of up to ±25%, it adapts well to joint expansion and contraction caused by thermal changes and building movement. It adheres strongly to glass, aluminum, stone, coated metal and many other building substrates without primer. It is ideal for perimeter joints of curtain walls, window and door frame sealing, metal panel joints, and general exterior glazing weathersealing.

DOWSIL™ 795 Structural Glazing Sealant

DOWSIL™ 795 is a high-performance one-part neutral structural silicone sealant for structural glazing applications. It delivers strong and durable structural bonding between glass and aluminum frames, ensuring safe and reliable integration of glass panels into curtain wall systems. It offers excellent weatherability, UV resistance and long-term durability, meeting strict international standards for structural glazing. It supports a movement capability of ±25% and performs reliably in extreme outdoor environments. It is mainly used in factory and on-site structural glazing, glass curtain wall assembly, metal-to-glass bonding, and high-rise building facades.

DOWSIL™ SJ268 Structural Silicone Sealant

DOWSIL™ SJ268 is a professional-grade neutral-cure structural silicone sealant designed for heavy-duty curtain wall applications. It provides exceptional structural strength, elasticity and long-term bonding stability. It shows outstanding performance under weathering, temperature cycling and mechanical stress, ensuring the safety and integrity of building facades. It is widely applied in large glass curtain walls, stone cladding systems, metal panel installation and other structural bonding projects that require high reliability.

DOWSIL™ 688 Silicone Glazing Sealant

DOWSIL™ 688 is a general-purpose neutral silicone sealant suitable for most non-structural glazing and sealing works. It features good weather resistance, non-slump property and easy application. It is non-corrosive to glass, aluminum, concrete and galvanized steel, making it safe for typical window and door installation. It is commonly used for residential and commercial window glazing, door perimeter sealing, interior and exterior caulking, and lightweight cladding sealing.

DOWSIL™ 3362 Insulating Glass Silicone Sealant

DOWSIL™ 3362 is a two-part neutral silicone sealant developed specifically for insulating glass units. It provides excellent adhesion to glass, aluminum spacers and warm-edge components. It has low gas permeability to help maintain argon or krypton filling inside double or triple glazing units, improving thermal insulation performance. It offers high durability against moisture, temperature changes and aging, effectively extending the service life of insulating glass.

DOWSIL™ PR-1200 RTV Primer

DOWSIL™ PR-1200 is a fast-drying primer used to improve adhesion of RTV silicone sealants on difficult substrates. It quickly forms a reactive surface layer to enhance bonding performance on coated aluminum, PVC, plastics, concrete and other low-energy surfaces. It is often used as a pretreatment before sealing in curtain wall construction, window frame installation and composite panel bonding, ensuring stable and long-lasting adhesion.


Post time: May-11-2026