Polymer products have influenced our world since the end of 19th century. Today, metals can be improved in many aspects and even replaced and this is more prices worthy. Since metals were molten in this world, methods have been developed to rectify the defects like blow holes, pin holes, shrink holes, wrong holes, wrong machining as well as to rectify corrosion, erosion and cavitation defects. Nowadays, cold welding process outstrips the hot welding process because it is easier, less time consuming, as well as the areas where the hot welding creates more problems and chances of distortion of the component and chances of fire are more, cold welding process can be done by non-experts with perfect result without any special accessories. In this area diamant metallplastic gmbh, germany has developed a cold welding product diamant plastic metal in different grades of ferrous and non ferrous which are mainly ther most material which gets cured within 3-30 minutes with exothermic reactions at room temperature. The decisive factors are: free mix ratios [!]; temperature resistance -40oc to +_350 oc; excellent metal character by pure metal fillers to 98%: special alloys for titanium, magnesium, stainless steels; special powders with minerals [ai203,si02, sic]; under water applications and applications on oily surfaces; reinforce, by, e.G., glass, carbon, kevlar, aramid fibres; machinable like metal; drilling, milling, grinding, tapping possible and special grades with 3 min curing time for emergency repire of oil and water leakage.
