The Teroson Up 610 Marine Filler 787g is the universal unsaturated polyester body filler used for marine applications. It repairs transom/stern damages, stress cracks, keel and rudder surfaces, redundant holes, engine mountings, damaged and pitted propellers, cracks and holes on hulls and superstructures, damages caused by osmosis or crazing, gaps between hull and deck and worn and damaged superstructures. It can be used on glass fibre and wood but is not suitable for use below the waterline on wood.