A pure epoxy compound, 100% solids by volume, which can remove water from the surface to be treated, providing excellent adhesion even on wet surfaces. Particularly useful for temporary repairs of leaks and cracks in the boat when it is in the water or moving. Subcoat S adheres easily to GRP, gel coats, old epoxies, epoxy tar as well as steel and concrete. It is suitable for temporary repairs on seachests, boot topping and submerged parts of cement quays. It is resistant to temperatures up to 100°C.