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Prepare old surfaces 6. Clean all panel joint edges to a bright smooth finish, using a belt type sander. WARNING: Care must be taken to avoid excessive heat build up which may be caused by this equipment. CAUTION: Where significant straightening is required, heat must be applied to the area to avoid stretching the Aluminium. All tools used for working with Aluminium must be kept separate from those used on steel. • NOTE: Prior to sanding, remove remaining sealant using a hot air gun to minimise the risk of toxic fumes caused by generated heat. 7. Straighten existing joint edges using shaping block and hammer. Prepare new surfaces |