Matrix MRP is very easy to use. Simply cut the required amount of putty from the stick, mix in the hand then apply to the surface. Matrix MRP will not slump or drip, bonds quickly to most metals including, steel (high and low carbon), aluminium and most other alloys. It is ideal for filling cracks in castings and rebuilding broken metal parts, gearboxes, engine housings, etc. Matrix MRP repairs stripped threads, and eliminates the need for expensive welding, can be drilled, filed, tapped, ground, sanded and painted when cured.