The araldite repair epoxy bar is a hard long lasting solvent free multi purpose repair putty which is waterproof and can be drilled filled painted or sanded ideal for bonding or sealing it will cope with uneven surfaces and is highly recommended for wet applications on metal pipes tanks and gutters it will even hold a repair where you are re joining parts with stripped threads araldite repair putty is a real ally for the serious diy enthusiast and repair man if you do need a smooth surface fin