Originally Posted by Rocky
But I can't believe that the UK can have a prep solution that is available in their version of Home Despot and the US cannot.
Apparently T Wash was invented by Britrail, years ago. They needed a solution to prep and paint galvanized steel to make it last longer.
The key to a good top coating of any surface is proper prep underneath. That goes for paint, powder-coat or galvanize.
Proper cleaning, and primer selection go a long way. Although it's easy to buy a rattle can of primer, a catalized product will have superior performance if applied and prepped correctly. After the PPG clean and metal prep on my side frames, I and following PPG's instructions and using a 2 part epoxy premier.
I have lots of galvanized parts on my truck, and they have all been painted, or powder coated. No issues with the finish sticking to the galvanized steel.