CRL Dow Corning Clear Glazing Silicone Sealant for Windows & Glass

• Excellent adhesion to most common building substrates
• Superior weatherability and UV resistance for exposed glazing

Dow Corning® Glazing Silicone Sealant (SKU: DC1C) is a professional‑grade acetic cure silicone formulated for glass shop glazing, window and skylight sealing. It forms a long‑lasting, water‑resistant seal with ±25 percent movement capability when properly applied — ideal for perimeter glazing, back‑lite replacement and skylight installations.


Basic Uses
Use for general glazing, skylights, back‑lite replacement, and repairs to weatherstripping and gaskets. The adhesion‑promoted formulation bonds to most glass, plastics, metals, repainted surfaces, fiberglass, ceramics, and aluminum. Longer working time helps deliver a clean, professional finish on window, storefront, and curtainwall projects.

Technical Data
Meets or exceeds: Federal Specifications TT-S-001543A (COM‑NBS) Class A, TT-S-00230C (COM‑NBS) Class A; ASTM C‑920; Canadian CAN2‑19.13‑M82.

Limitations
Not for structural glazing or use on masonry. See cartridge label and Specification Data Sheet for additional limitations.

Comparable Sealants
CRL: 33S. Dap: 100% Silicone. Dow Corning®: 999‑A; 786; 732; 700; General Purpose; Commercial Grade 100%; Tub, Tile and Ceramic; HVAC/R. GE®: 1200 Construction, 1000 Contractors, 1700 Sanitary. Tremco®: Proglaze, Tremsil 200, TremPro 644. OSI: HM‑270. Pecora: 860, 863. Sonneborn: OmniPlus. Sika®: SikaSil®‑GP.


Product Warning:

Not for structural glazing. Check cartridge label and Specification Data Sheet for additional limitations.


For technical questions or to order Dow Corning Glazing Silicone