Sika Aktivator-205

Sika Aktivator-205 is a solvent-based, colourless adhesion promoter which reacts with moisture and deposits active groups on the substrate. These groups act as a bonding link between substrates and primers, adhesives or sealants. Sika Aktivator-205 is designed for the treatment of bonding surfaces prior to the use of Sikaflex adhesives and sealants.

Sika Aktivator-205 is used to improve adhesion on non-porous substrates such as metals, plastics, ceramic screen prints and painted surfaces.

Features of Sika Aktivator-205

• Enhanced adhesion on a wide range of substrates.
• Short flash-off time.
• Easy to use.
• Transparent.

Directions for use

We advise applying the activator to a clean and dry surface, free from all traces of grease, oil, dust and contaminants. Wipe the bonding surfaces with a clean, lint-free paper towel moistened (not wet) with Sika Aktivator-205. Never dip the towel into the activator. Only wipe the surface with a clean side of the towel. Do not moisten the same paper towel twice and change it frequently. Caution: Sika Aktivator-205 has to be applied sparingly as excess activator could lead to adhesion failure. If the pre-treated area is not bonded within the maximum flash-off time, the activation process has to be repeated (only once). The ideal application and surface temperatures are between 15 °C and 25 °C. Consumption and method of application depend on the specific nature of the substrates. Tightly reseal the container immediately after each use.

Specifications

Contents: 30 ml, 250 ml, 1 L
Chemical base: solvent-based adhesion promoter
Colour: transparent
Curing mechanism: moisture curing
Specific gravity (uncured): 1.3 kg/l
Non-sag properties: good
Application temperature: 5-40 °C
Consumption: 20 ml/m²
Flash-off time (min.): 10 minutes (23 °C / 50 % RH)
Flash-off time (max.): 2 hours (23 °C / 50 % RH)
Shelf life: 12 months (stored in sealed container in upright position in a dry place ≤ 25 °C)