Product Data Sheet Safety Data Sheet Show all documents
SikaBiresin® AP539

SikaBiresin® AP539

SikaBiresin® AP539 is a fiberglass-filled, polyester-based, industrial filler paste. It is specifically formulated for use as a marine radius putty/filler applied behind the gelcoat after it has been applied to the mold. As a marine radius putty, SikaBiresin® AP539 fills in details and bridges the areas where imperfections have occured in the gelcoat.

  • Bonds well to a wide range or substrates
  • Low exotherm
  • Long working time
  • Fiberglass-filled for increased strength
  • Minimal shrinkage
Product Data Sheet Safety Data Sheet Show all documents

Usage

SikaBiresin® AP539 is suitable for use as a marine radius putty material. It can also be used as a high strength bond and fill system in a wide range of industries for FRP composites to FRP, wood to wood, and wood to FRP applications.

This product is suitable for experienced professional users only. Tests with actual materials and conditions have to be performed to ensure satisfactory performance.

Advantages

  • Bonds well to a wide range or substrates
  • Low exotherm
  • Long working time
  • Fiberglass-filled for increased strength
  • Minimal shrinkage

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