One of the most common uses for applying a Tech-Patch is to apply a patch to metal. At the same time, this application is the easiest and most difficult procedure to execute. Why? Because metal is almost never just metal.
Because of corrosion, oxidation, i.e., everyday rust, most metals are coated. That coating could be paint, powder, anodized substances, epoxy coatings and so on and so forth. Coatings, whatever they are, do not have substantial strength. If a Tech-Patch is bonded to a coating, the patch will not last. Likewise, if the metal is oxidized, the patch will not last.
Three Simple Steps.
The Key To Full Seal Pipe and Tank Repair:
So to bond a Tech-Patch to metal, of any type*, proper surface preparation is the key. Proper surface preparation means that the metal surface must be abraded. Abraded by sand blasting, or abraded by using a coarse 60 grit sand paper, or by polishing the metal surface with a 600 grit paper or by any other means.
Once the surface is abraded, that surface must be cleaned prior to applying the Tech-Patch. Use any cleaner that will not leave a residue. Finally wipe the surface with a clean soft cloth to ensure that all residue has been eliminated.
Once the surface is cleaned, follow the Tech-Patch instructions to apply the patch.
Note: Our adhesives will seal metal surface against corrosion. Once a patch is applied, you can coat the surrounding area with one of our adhesives and that area will not rust. Apply one of our adhesives to the problem area and spray the adhesive with the Activator/Accelerator.
* Tech-Patches will not permanently work on alloy or stainless steels.