Sika Aktivator-205 Clear 250 ml is a solvent-based adhesion promoter designed to prime bond faces for Sikaflex and Sikasil adhesives and sealants. It is colorless and moisture-activated to promote reliable, long-lasting adhesion on non-porous substrates.
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Volume: 250 ml bottle
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Color: Transparent / colorless
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Function: Solvent-based adhesion promoter to prime bond faces for Sikaflex and Sikasil adhesives and sealants
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Activation: Moisture-activated—deposits active surface groups to improve bonding with primers, sealants, and adhesives
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Substrate compatibility: Designed for non-porous substrates; enhances adhesion on metals, plastics, ceramic screen prints, and painted surfaces
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Finish: Colorless, clear bonding lines for aesthetics
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Flash-off time: Short; speeds up bonding workflows
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Application guidance: Clean and dry bond faces; apply a thin layer and allow a brief flash-off before applying Sikaflex or Sikasil
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Intended users: Suitable for experienced professional users
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Manufacturer: Sika
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Part No: 108616
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UPC: 033886006262
Sika Aktivator-205 Clear 250 ml delivers a reliable, long-lasting bond by priming non-porous surfaces before Sikaflex or Sikasil applications. The moisture-activated chemistry deposits active surface groups that improve wetting and adhesion with primers, sealants, and adhesives on metals, plastics, ceramic screen prints, and painted surfaces. The colorless finish preserves clear bonding lines, while the short flash-off time minimizes downtime in bonding workflows. For best results, prepare bond faces by cleaning and drying, apply a thin layer, allow a brief flash-off, then apply Sikaflex or Sikasil products. This product is intended for experienced professional users; always consult the manufacturer and test on your original substrates to confirm adhesion and material compatibility, particularly with materials prone to stress cracking.
