Devcon® Aluminium Putty. This light weight Aluminium filled epoxy has all the characteristics of an Aluminium finish. This non sagging, non rusting epoxy is ideal for repairing Aluminium parts, filling Aluminium castings & forming light weight prototypes. Applications: Rebuilding & repairing aluminium castings, parts & equipment. Maximum Operating Temperature Wet 50°C & Dry 120°C. Coverage 1264cm² per kilo at 5mm thick