[frankc]

I have the tail light housings out of the car, and when cleaning them, I noticed that the exterior of the housings (the part exposed in wheel well) originally had some type of silver finish that has mostly come off over the years. I would like to put some type of finish on them again, but given that the housing are die-cast pot metal, adhesion will be a problem with most products.

The POR15 website states that their product can be used on galvanized steel if etched with Metal Ready first (I have done this with good results so far). So, since pot metal is mostly zinc, I was wondering if POR15 can also be used pot metal. Has anyone ever tried this? I have searched here and Google but could not find any references.

I did find one reference stating that epoxy primer can be used as a base for pot metal - basically anything that is non-porous - which is why I was thinking that POR15 would be a suitable product. I will call their tech support on Monday to verify, but would appreciate any feedback from experience in the meantime.

Thanks