Sika Aktivator 100 Surface cleaner Sealing pretreatment Adhesion promoter


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Sika Aktivator-100 is a colorless solvent-based adhesion promoter, which reacts with moisture and deposits active groups on the substrate. These groups act as a link between substrates and primers or sealants / adhesives. Sika Aktivator-100 is specifically formulated for the treatment of bonding surfaces prior to the application of Sika elastic adhesives and sealants.  


  • Easy to use
  • Improved adhesion to a wide variety of non-porous substrates
  • Short flash-off time
  • Transparent



Sika Aktivator-100 is used to improve adhesion on substrates such as float glass, ceramic screen prints, cut surfaces of old polyurethane adhesives and paints. After intensive testing, this activator is also suitable for improving the adhesion of other Sika sealants and adhesives on non-porous substrates. Seek manufacturer's advice and perform tests on original substrates before using Sika Aktivator-100 on materials prone to stress cracking. This product is only suitable for experienced professional users. Tests with actual substrates and conditions must be performed to ensure adhesion and material compatibility.i.


Surfaces must be clean, dry and free of any traces of grease, oil, dust and contaminants.

Adhesion to substrates can be improved by adding and / or combining pretreatment processes such as abrasion and cleaning prior to activator application.


Clean bonding surfaces with a clean, lint-free paper towel moistened (not wet) with Sika Aktivator-100. Dry immediately with a clean, dry, lint-free paper towel. Never immerse the cloth in the activator. Clean the surface only with the clean side of the cloth. Never moisten the same cloth twice and change it frequently..

Sika Aktivator-100 should be applied in moderation as an excess of activator may cause adhesion failure..

If the pre-treated area is not bonded within the maximum flash-off time, the activation process must be repeated (once only).

The ideal application and surface temperature is between 15C and 25C.C.

Consumption and method of application depend on the specific nature of the substrates.

Hermetically reseal the container immediately after each use.