Araldite Repair – Metal. Araldite Metal Repair is cold weld, rapid hardening and prevents rust. Mix a stiffer filler paste for plugging leaks and large gaps as well as holes. Mix a liquid for filling small cracks and surface imperfections. Can be sanded, painted, cut, drilled, tapped and filed as for metals. Suitable for most metals including steel, galvinised steel, cast iron, aluminium, iron, copper and brass. Supplied in a 81g tub. For our full range of Araldite products, click here. Addtionally, if you need product advice then you can give our sales team a call on 01621 828882 and we will be happy to assist you.