Interlux Watertite Epoxy Filler. A quick drying epoxy filler suitable for use on GRP, metals and rigid wood constructions. Does not shrink and is extremely water resistant, making it suitable for osmosis damage repairs. Fills up to 3/4 inch without sagging. High-strength and adhesion properties. Very fast drying and super smooth. Features a simple 1:1 mixing ratio for easy measurement of components. For use above and below the waterline. Matte finish. 1 liter kit.