Glazing and Backbedding


CSL335A High Performance Window and Door Manufacturing Silicone Sealant

CSL335A High Performance Window and Door Manufacturing Silicone Sealant

AAMA certified. High performance product designed specifically as a glazing and backbedding sealant used in manufacturing applications requiring high tensile strength and high flexibility.


Window Door CCSL335A is a one part, moisture cure, room temperature vulcanizing (RTV) 100% silicone sealant primarily used in butt or lap shear joints and in weatherproofing glazing applications subject to movement.

CSL335A can be applied to glass and metal in glazing and curtain wall assemblies to produce a primary or secondary seal against water, air and dust penetration.
Other specific applications include: glazing and installation of steel, aluminum, fiberglass and wood windows; interior and exterior glass partitions; general caulking of vents, window and door frames; weatherstripping; skylights and curtain walls; high performance sealing for buildings.

CSL335A has excellent adhesion to glass, fiberglass, aluminum, porcelain, ceramic, wood, stainless steel, most plastics and many other substrates including concrete.

CSL335A has a broad temperature range of -60°C to 200°C (-76°F to 392°F).

• AAMA Certified 802.3-10 Type II, AAMA 805.2-10 Group C, and AAMA 808.3-10
• Meets ASTM C920-11 Type S, Grade NS, Use NT, M, G, A, O and I specifications
• Federal Specifications TT-S-001543A and TT-S-00230C
• Can/CGSB -19,13-M87
• Recognized under the Components Program of Underwriters Laboratories Inc. ® - UL File No. E109726: Plastics - Component (QMFZ2.E109726), Plastics Certified for Canada - Component (QMFZ8.E109726)
CSL335A is available in clear, white, black, and grey.








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UL 2761 - 2011 Standard for the Sustainability for Sealants and Caulking Compounds