Interlux Watertite Epoxy Filler 500 ml


A two-part, easy to use, fast drying epoxy compound for filling holes and repairing scratches in gelcoat and fiberglass. Interlux Watertite Filler is especially recommended for prevention and repair of gelcoat blisters below the waterline and for use with the Interprotect 2000 Epoxy Barrier System or VC Tar2.


Interlux Watertite is an excellent fairing compound due to its quick drying cure, which gives a long easy-to-sand window. For use on fiberglass, metals, epoxy and rigid wood constructions. The formulation does not shrink and is extremely water resistant, making it suitable for osmosis damage repairs.


Interlux Watertite Filler can be applied to a thickness of 3/4" without sagging and its superior spreadability makes it an ideal glazing compound for filling small nicks and scratches. Mixes at a 1:1 ratio.  

  • Fill up to ¾" without sagging
  • Use above and below the waterline
  • High strength and adhesion properties
  • Simple 1:1 mixing ratio for easy measurement of components
  • Very fast drying
  • Super-smooth

Note: Do not apply topside finishes, polyester or vinylester materials over Watertite.

Interlux Watertite Epoxy Filler 500ml