Unleash superior bonding with Sika Aktivator-205 Clear, a solvent-based adhesion promoter designed to prime bond faces for Sikaflex and Sikasil adhesives and sealants. This colorless, moisture-activated treatment deposits active groups on the substrate, creating a robust link between surfaces and primers or sealants for reliable, long-lasting adhesion.
Why it's essential
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Enhanced adhesion on a wide range of substrates, including metals, plastics, ceramic screen prints, and painted surfaces.
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Colorless and transparent finish ensures clear bonding lines and aesthetic compatibility.
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Short flash-off time minimizes downtime and speeds up bonding workflows.
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Easy to use with straightforward surface treatment prior to adhesive application.
Sika Aktivator-205 is intended for use on non-porous substrates and is designed to improve adhesion before applying Sikaflex or Sikasil products. It is suitable for experienced professional users. Always seek manufacturer guidance and perform tests on original substrates to confirm adhesion and material compatibility, particularly with materials prone to stress cracking.
How it works
The activator reacts with ambient moisture to deposit active surface groups that bond with primers, sealants, and adhesives, forming a durable intermediate layer that enhances wetting and bonding performance on challenging surfaces.
Usage and application
- Prepare the bond faces and ensure they are clean and dry.
- Apply a thin layer of Sika Aktivator-205 and allow a short flash-off time before applying Sikaflex or Sikasil adhesives/sealants.
- Proceed with bonding or sealing once the surface is ready for adhesion.
Specifications
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Product: Sika Aktivator-205 Clear
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Volume: 250 ml bottle
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Color: Transparent / colorless
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Manufacturer: Sika
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Part No: 108616
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UPC: 033886006262
