Sikasil WS-295 White Medium Modulus Neutral Cure Weatherseal Silicone Sealant 20oz Unipac

Sika Corporation
Item #
Mfr. Model # 412421

Sikasil WS-295, White, Medium Modulus Neutral Cure Weatherseal Silicone Sealant, 20oz Unipac

Sikasil-WS 295 sealant is a one part, neutral cure silicone sealant for use in most common weatherproofing applications on a wide variety of materials.

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

  • As a weatherseal in both conventional glazing and structural glazing* applications, 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 sealing of doors, windows and other building components
  • Adhering stiffeners to building panels
  • Excellent for use in unitized curtain wall systems

  • 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
Product Details
Specification Description
# of Components: Single Component
Adhesive/Glue Type: Caulks & Sealants
Brand Name: Sika Corporation
Brand Part Number: 412421
Chemical Base: Silicone
Color: White
Cure Mechanism: Moisture
Cure Time: 7 - 14 Days
Cure Type: Neutral
Elongation: 700%
For Joint Type: Horizontal & Vertical
Grade (ASTM C-920): NS - Non-Sag
Model: Sikasil WS-295
Movement Capability: +/- 50%
Operating Temperature: -80° to 350°F
Package Type: Unipac
Paintable: No
Peel Strength: 30 pli
Primary Application: Construction & Concrete
Shelf Life: 365 days
Shore Hardness: 25A
Size: 20 oz
Specifications Met: ASTM C1184, ASTM C-920 Type S Grade NS Class 50 Use NT/M/G/A/O, CAN/CGSB-19.13-M87, TT-S-00230C Type II Class A
Temperature Rating: High (Up to 350°F)
Tensile Strength: 200 psi
Use (ASTM C-920): A - Aluminum, G - Glass, M - Mortar, NT - Non-Traffic, O - Other
VOC Content Range: 37 g/L
Working/Tack/Skin Time: 50 Minutes
$20.49 / each

Must order in increments of 20 units
Estimated to ship Fri. Jul 05.