Sika Everbuild Sikasil 825 Alkoxy Neutral Silicone Sealant 380ml - Beige

Summary

The Sika Everbuild Sikasil 825 is a professional-grade, low modulus, neutral cure alkoxy silicone sealant supplied in a 380ml cartridge in Beige. Designed for large-scale construction, glazing, and perimeter sealing applications, it delivers long-lasting weatherproof performance on a broad range of substrates. It is suitable for both internal and external use by trade contractors and building professionals.

Features

• Low modulus, neutral cure alkoxy formulation produces no acetic acid and is virtually odourless during application.
• Adheres to a wide range of porous and non-porous surfaces including glass, metals, plastics, painted and unpainted wood, uPVC, and polycarbonate - typically without the need for a primer.
• Slow skinning time provides excellent tooling characteristics, ideal for neat joint finishing on large construction projects.
• High viscosity non-slump formula maintains its body and structure in wide or deep joints without sagging.
• Outstanding external weathering resistance, ensuring long-term durability and elasticity over years of exposure.
• Suitable for wall expansion joints when used with a back rod to form a correctly shaped two-sided elastic joint.
• Certified to ISO 11600 F25LM and G25LM, and CE marked under EN 15651 for facade, glazing, cold climate, and sanitary applications.
• Non-staining on most surfaces; resistant to fumed hydrogen peroxide and fumed formaldehyde.

Specifications

• Product Name: Sikasil 825 (formerly Everbuild Tecnic(R) Silicone 825)
• Colour: Beige
• Volume: 380ml cartridge
• Cure Type: Neutral cure (alkoxy)
• Modulus: Low modulus
• Movement Accommodation: Up to 35% compression / 100% elongation
• Tensile Modulus (100% elongation): 0.25-0.3 MPa
• Shrinkage (ISO 10563): <5%
• Skin Formation: Approx. 10 minutes (tool within this window)
• Full Cure: 24-48 hours (depending on joint depth and conditions)
• Storage: +5degC to +25degC in original unopened container
• Shelf Life: 12 months from date of manufacture

What's Included

• 1 x 380ml cartridge of Sikasil 825 Silicone Sealant - Beige