fast etch used on clean cast iron manifold

Posted: May 14, 2015 By: nescojim

Home Forums Ask Eastwood fast etch used on clean cast iron manifold

Viewing 1 post (of 1 total)
  • Author

    Posts

  • #35403

    nescojim

    Member

    I sandblasted my cast iron exhaust manifolds and then treated with Fast Etch which left a dark grey or black coating, then painted with high temp factory grey coating. Since there was no rust I did not get the zinc phosphate finish.Should I have removed the black residue and do I now have to sandblast to bare metal and start over?

Viewing 1 post (of 1 total)
  • You must be logged in to reply to this topic.

Top Selling Products

Comments are closed