Item #870641

Interlux Watertite Epoxy Filler

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          Interlux Watertite Epoxy Filler

          Item # 870641


          Interlux's Watertite Epoxy Filler is a 2-part, easy-to-use epoxy compound for filling holes and repairing scratches in gelcoat and fiberglass above and below the waterline.


          • Superior spreadability makes it an ideal glazing compound for filling small nicks and scratches
          • Has a long, easy-to-sand window and can be applied to a thickness of 3/4" without sagging
          • Use above or below the waterline on fiberglass, metals, epoxy and rigid wood constructions
          • High strength and adhesion properties
          • Does not shrink and is extremely water resistant, making it suitable for osmosis damage repairs
          • Simple 1:1 mixing ratio for easy measurement of components


          • Color: Light Blue
          • Finish: Matte
          • Specific gravity: 1.8
          • Volume solids: 100%
          • Mix ratio: 1:1 by volume (as supplied)
          • Converter/curing agent: V136
          • Typical shelf life: 2 Years
          • VOC (as supplied): 0 g/lt
          • Number of coats: As required
          • Coverage (theoretical): 25 ft 2/gal @ 1/16"
          • Recommended DFT: 63.5 mils dry
          • Application methods: Spatula / putty knife

          Interlux Watertite Epoxy Filler Product Data Sheet


          This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.

          For more information go to

          Part Numbers for Interlux Watertite Epoxy Filler

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          Rated 5 out of 5 by from Great product My go-to product for fairing, blisters and all kinds of minor repairs. Highly workable - spreads well, sands easily, doesn’t shrink. Only caution when working in open sunlight: cover it with primer soon after sanding. Like many epoxy products it deteriorates when exposed to direct sunlight.
          Date published: 2023-03-18
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