DescriptionUsagePerimeter pointing internally and externally around PVCu /wood and powder coated aluminium.Sealing and as an adhesive onto PVCu, plastic trims and components. Sealing soft metals such as lead, copper and zinc. Weather sealing and joint sealing to pre-formed panels and curtain walling, glazing sealing and draught proofing. Glass to glass and glass to aluminium sealing. Parapet and roof weather sealing applications.Ideal for precast concrete and masonry products, including brick, natural stone and terracotta.Suitable as an expansion joint sealant.Bedding and sealing of Insulated Glass units.Packaging380 ml cartridgeAdvantagesExcellent tooling and slow skinning properties for large scale construction and glazing applications.Excellent adhesion – adheres to most common surfaces including glass, metals, plastics and wood (painted or unpainted), uPVC and polycarbonate.Excellent external weathering properties (over many years exposure).High viscosity non slump formula.Resistant to fumed Hydrogen Peroxide and fumed Formaldehyde once fully cured.Shrinkage ISO10563 <5 % Tensile Modulus at 100% Elongation ISO 8339 23°C0.25—0.3 MPaTensile Adhesion Strength at Break0.5 MPaCompressive Modulus 100% ISO 114320.35 MPaMovement Factors Maximum Compression 35 % Maximum Elongation 100 % (for a 20 mm wide joint min 13 mm max 40 mm)ColourWhite, Black, Mid Grey, Dark Grey, Brick Red, Brown, Buff, Beige, Anthracite, Dark Anthracite RAL 7016, Magnolia, Portland Stone, Limestone WhiteAPPROVALS / STANDARDSCertified to ISO11600 F25LM and G25LM.UKCA and CE marked under EN15651 for cold climate, façade, glazing and sanitary applications.ASTM C719 Class 35APPLICATION INSTRUCTIONSPRIMEREverbuild Tecnic® Silicone 825 does not require a primer on most common surfaces, although adhesion tests are recommended prior to full scale application. If the joint is likely to be immersed or if adhesion is poor (especially on porous surfaces) use SIKA® PRIMER 3N. To improve adhesion (if required) to non-porous surfaces, prime with Sika® Aktivator 205.SUBSTRATE PREPARATIONSurfaces must be clean, dry and free from dust, grease and other contaminants. Remove dust with compressed air. Degrease by using a solvent soaked pad, following by wiping with a clean cloth. Following cleaning procedure and materials are recommended:GlassDegrease with alcohol or MEKAluminium, light alloys and stainless steelDegrease with alcohol or MEKOther MetalsLightly abrade then degrease as aboveWoodLightly abrade surface then remove dustPlasticsDegrease using an agent recommended by plastics manufacturerConcrete and other alkaline surfacesBrush and remove dustPolyester Powder Coated Aluminium (PPCA)Sika® Cleaner P and Sika® Aktivator-205CLEANING OF TOOLSUncured sealant – white spirit. Cured sealant – mechanically
