Aluminum putty repair kit. A two component epoxy formulation highly filled with carefully selected pure aluminum particles, modified curing agents, and special high quality additives to provide maximum strength, durability, and ease of application. Because exact amounts of resin and hardener can be dispensed from each tube, the H-450 eliminates waste and is ideal for smaller repairs. The easy to use H-450 fits comfortably into any tool box and is extremely popular with HVAC tradesmen, plumbers and auto mechanics. Alumbond is especially formulated for repairing HVAC pipes, tanks, valves, pumps, castings, water jackets, radiators, etc., where non-rusting, non-magnetic aluminum finish is desired.