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.
The maximum waiting time before applying the silicone product is 6 hours.
In order to avoid any hydrolysis problems, it is recommended not to leave the container in contact with atmospheric humidity.

BLUESIL PRIM 131 may be stored at temperatures between 2°C / 36°F and 30°C / 86°F for up to 24 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


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




Specific Gravity0.79Monocomp
Flash point12MonocompAFNOR T 60°C




































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