I have a steel
that I'm working on and had a question.
Note that I am in the process of taking everything down to the metal and repainting as I was unsure if the correct paints were used to protect the steel
. However on the outside I found a yellow barrier coat under the top coat that seems to be in good shape, light sandblasting does not penetrate it.
I was going to use a metal etch primer, a tie-coat primer and an epoxy
, but if the yellow stuff (zinc chromate?) looks pretty good, maybe I don't need to take it down to the metal.
Note that I had a survey
and it appeared as if there was rust/ tiny bubbles of corrosion
or something under the paint
but to me it looks more like the top coat is getting messed up.
Your advice or input would be appreciated. Thanks!