Before applying Petro Patch, clean the surface to remove grease, grime etc but note that Petro Patch can be applied to surfaces without removing the rust, although loose scale must be removed.
Wear gloves when applying Petro Patch, apply coating of solution to surface. Next coat a piece of prepared patching material and apply on both sides until soft. If in cold weather the fluid is rather thick, stand the jar is warm (not hot) water for a couple at minutes.
Apply a patch and work to contour of the part being repaired. Allow to set for 20 minutes then apply another coat of solution. If possible wait at least 24 hours before using, but if urgently required it will usually he hard enough in a few hours. When repairing on articles to contain a liquid which has an actual hole (or open crack) use a patch as above and when dry put another slightly larger patch on top of it.
Petrol Tanks: Apply Petro Patch when the fuel level in tank is below the part to be repaired. As no heat is required there is no danger of explosion.
Body Repairs: For rusted and holed wings, door panels, leaking roofs etc., apply Petro Patch as described above and wait at least 24 hours to harden thoroughly before repainting to match. For additional strength at edges etc., build up with two or more layers.
Petro Patch has many uses around the home too. Use for plumbing, radiators, boilers. water tanks etc.
WASH HANDS THOROUGHLY AFTER USE.