Sika Everbuild Tecnic Silicone 825 Low Modulus Neutral Cure Sealant Buff 380ml

Summary

Everbuild Tecnic(R) Silicone 825 is a professional-grade, low modulus, neutral cure alkoxy silicone sealant supplied in a 380ml cartridge in buff. Formulated for large-scale construction, glazing, and facade work, it bonds to a wide range of porous and non-porous substrates without primer in most cases. Its slow-skinning, high-viscosity formula gives tradespeople extended tooling time and precise bead control on demanding joint applications.

Features

• Low modulus, neutral cure alkoxy system produces a low-odour, flexible seal suitable for dynamic movement joints.
• Primerless adhesion to most common surfaces including glass, metals, uPVC, polycarbonate, and painted or unpainted timber.
• Slow skinning time provides extended tooling for large or complex joint runs.
• High viscosity, non-slump formulation holds body and shape on both horizontal and vertical joints.
• Certified to ISO 11600 F25LM and G25LM for facade, glazing, and cold-climate applications.
• CE marked under EN 15651 for facade, glazing, cold-climate and sanitary classifications.
• Excellent long-term external weathering and UV resistance.
• Buff colour offers a warm, neutral tone that blends naturally with stone, brick, and light masonry substrates.
• Not suitable for swimming pool joints; may yellow if exposed to bleach or HCl-based cleaners during cure.

Specifications

• Product Name: Everbuild Tecnic(R) Silicone 825 (also marketed as Sikasil(R)-825)
• Colour: Buff
• Volume: 380ml cartridge
• Cure Type: Neutral cure, alkoxy
• Modulus: Low modulus
• Movement Accommodation: +/-35%
• Shrinkage (ISO 10563): <5%
• Tensile Modulus at 100% Elongation (ISO 8339, 23degC): 0.25-0.3 MPa
• Standards: ISO 11600 F25LM and G25LM; CE marked EN 15651
• Storage: +5degC to +25degC in original unopened container

What's Included

• 1 x Everbuild Tecnic(R) Silicone 825 sealant cartridge, Buff, 380ml