Presenting fx-738 from qu-con inc a 100% solid metal reinforced polymeric compound from usa, to mend blow holes, one of major costing defects associated at manufacturing stage, resulting in heavy rejections. This can be used for cold welding of blowholes and cracks in mild steel, graded cast iron, sg iron, and stainless steel as well as some of exotic alloy steel. The cured repaired portion becomes an integral part of main body. It can be miled, cut turned on lathe, drilled, tapped, reamed, field and painted. Fx-738 is chemically resistant to most of organic and non-organic chemicals, mild acids, alkalis, solvents, salts, and hydrocarbons. It exhibits high compressive strength of 17200 psi, flexural strength in excess of 17200 psi and lap shear of 2400 psi, and as a result, is excellent structural repair epoxy for parts subjected to heavy vibration. It can be used at temperature up to 250 c and with stands 20 bar pressure. The application needs no special tools, equipments or training. High temperature pyro-putty is also available for repairs of parts exposed to up 1300 c.