Surelock

The chemical composition of metals has changed and evolved considerably since the early days of the automobile in the late 19th century. Therefore, modern welding repair techniques including laser welding for cracks or crevices in older cast iron and aluminium, are often unsuccessful. Inconsistencies & inclusions in the metal are quite common, especially in earlier vehicles, often making successful welding completely impossible. The heat applied during the welding process can sometimes cause further damage. The tensile strength of the metal at the repair site is altered during the welding process, leading to potential post-repair cracking. To prevent this, the method of cold cast repairs has been developed, perfected, and successfully used for many years. If a block has already been welded, the Surelock System of Cold Casting Repairs could still be used to save the block. If the block can be repaired, we will remove and replace the weld with a stitched repair. We finish the job by ceramically impregnating the block. We also have very extensive in-house welding skills and facilities and can advise in those cases where welding might be more appropriate, for example where material needs to be added and distortion can be mitigated.