A high-density epoxy/aluminum putty stick for permanent, fast repairs of aluminum boats, RV's and other aluminum parts. Contains special additives that cut through oxidation and anodization and enhance its ability to adhere to old aluminum. Works equally well on other material including fiberglass, wood, and other metals and ceramics. Mixes by hand like modeling clay. Permanently repairs holes, gouges, cuts, rivet leaks in aluminum boats and RV's. Seals leaks in fuel and water tanks and lines, pipe joints, drains, exhaust lines, manifolds and mufflers. Repairs electrolysis damage and cracks in outboard-I/O lower units. 7 minute work time - cures steel hard in 30 minutes. Can be sanded, filed, painted immediately and drilled and tapped. Contains no solvents - won't shrink and fall out. Will not dry out during storage.