Has anyone ever tried to anodize an ASTM A463 Type 1 hot dip aluminum coated steel?
Problems will arise if there is any area where the steel under the aluminum coating is exposed to the electrolyte: the current will flow from that area and not anodize the aluminum. Such problems occur where pin-hole areas in the aluminum coating do not cover the steel. If the steel is completely coated, the aluminum coating can be anodized successfully. I am trying to glue a rubber grommet to clear anodized aluminum. I am using an industrial grade instant adhesive on 6061-T6 alloy. The grommet is acting as a mechanical pivot so there is some amount of force, but not a lot. I am having difficulty getting the adhesive to stick. Do you think it is the adhesive I am using, or does the sealing of the anodic coating reduce the adhesion? Could the anodize coating be coming off? It’s probably not the fault of the adhesive and, no, the anodizing is not coming off. You have most likely touched on the problem in your question. The answer to your problem can be applied across any number of situat
