Silcolease® UV POLY 204 must be used with a Cationic photoinitiator as a catalyst, for example Silcolease® UV CATA 211, and if necessary a release control additive, for example Silcolease® UV RCA 251 or RCA 200.
Silcolease® UV POLY 204 is commonly used as a viscosity modifier in conjunction with a second base polymer, for example Silcolease® UV POLY 200.
Recommended formulation, typical:
Silcolease® UV POLY 200 (or 215)...................... 100 - x parts
Silcolease® UV POLY 204………………...................... x parts
Silcolease® UV CATA 211 .......................................1 - 4 parts

Recommended bath preparation procedure:
The components should be added to the bath whilst constantly stirring in the following order: Silcolease® UV POLY 204, then Silcolease® UV CATA 211 and then if required the release control additive Silcolease® UV RCA 251 or RCA 200.
When used as a viscosity modifier Silcolease® UV POLY 204 should be mixed with the appropriate polymer (for example Silcolease® UV POLY 200 or Silcolease® UV POLY 215) and then Silcolease® UV CATA 211 and other components as indicated above.

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. Avoid contact with oxidizing agents. Suitable containers: Steel drums coated with epoxy-resin.Please consult the Safety Data Sheet of this product.Heavy Metals


Silcolease® UV POLY 204 is a 100% reactive release coating chemistry based on epoxy silicone copolymer technology. In combination with the patented Iodonium Borate UV photoinitiator technology it offers a highly reactive system with excellent anchorage on difficult low surface energy filmic substrates.
Whilst the polymer can be used alone it is most commonly used as a viscosity reduction additive for the polymers UV POLY 200 or UV POLY 215.


Functional Fluid


Heavy Metals


  • Very low viscosity, UV system diluent
  • Excellent anchorage, especially to untreated polyester films
  • Very low extractable silicone
  • Excellent subsequent adhesion
  • Differential release (release level modifiable up or down)


A UV curing silicone release coating on films & papers-tight release base polymer for :

  • Self adhesive labels
  • Tapes (2 sided adhesive tapes)
  • Industrial (bitumen, floor tiles)
  • Hygiene (sanitary towels, diapers)
  • Other self-adhesive protectors (envelopes, personal care)


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.




Color< 60MonocompAPHA
Dry content99Monocomp%
Turbidity< 20MonocompDIN 53479NTU
Epoxy content12.65Monocomp%


































Silcolease® Solventless UV range, a new world of silicone technology® Solventless UV range, a new world of silicone technology










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