Product Data Sheet

Sikasil® WS-295 sealant is a one part, neutral cure for use in most common weatherproofing applications on a wide variety of materials. Meets the requirements of ASTM C920, Type S, Grade NS, Class 50, Use NT, M, G, A, O; TT-S-00230C, Type II, Class A; CAN/CGSB-19.13-M87

Uses

Sikasil® WS-295 silicone sealant has been specifically designed:

• As a weatherseal in conventional glazing, including cap, toe and heel beads.
• As a weatherseal in glass to glass butt joint glazing.
• Sealing expansion and control joints in precast concrete panels and metal curtain walls.
• Perimeter weathersealing of doors, windows and other building components.
• Adhering stiffeners to building panels.
• Excellent for use in unitized curtain wall systems.

Product Features

• Versatile medium modulus
• Unaffected by most atmospheric conditions
• Excellent resistance to UV and Ozone exposure
• Non-staining to most porous substrates
• Joint movement ±50 %
• Excellent adhesion to most substrates and surfaces
• One-component, moisture-curing
• Excellent gunnability in all temperatures