BLUESIL PRIM 131 is particularly easy to process because it is delivered ready to use. In all cases, it must be applied to clean, dry surfaces.
BLUESIL PRIM 131 is applied with a brush or dry cloth in a thin, uniform coat.
After applying BLUESIL PRIM 131 it is recommended to wait 1 or more minutes to leave it time to dry, at room temperature, before applying, pouring or injecting the silicone elastomer on the primer-prepared surface.
In order to avoid any hydrolysis problems, it is recommended not to leave the container in contact with atmospheric humidity.

Avoid discharge into drains, water courses or onto the ground. Store in a cool, dry place with adequate ventilation. Keep away from incompatible materials, open flames, and high temperatures. Nitrogen blanketing of containers is required. Avoid contact with oxidizing agents. Suitable containers: Steel drums coated with epoxy-resin.Please consult the Safety Data Sheet of this product.ELV;RoHS;VOC;WEEE


BLUESIL PRIM 131 is an adhesion promoter for Room Temperature Vulcanising silicone elastomers:

  • one-component (RTV-1): CAF,
  • two-component (RTV-2): BLUESIL, RTV, CAF AXAD,
  • on a large number of surfaces.






BLUESIL PRIM 131 is particularly recommended for use with the following surfaces:

  • Aluminium.
  • Polished and unpolished stainless steel.
  • Painted, zinc plated and chrome plated steel.
  • Polar plastics: polyamide, polycarbonate, ABS.


Asia Pacific;Europe Middle East Africa;Central and South America;North America

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Specific Gravity0.79Monocomp
Flash point12MonocompAFNOR T 60°C












































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