Does Zinc Chromate need to be prepped with ethching?

[g_e_young]

Since Zinc Chromate is not "self etching" do I need to pray on some "etching" material prior to painting?

Thx,

gy

[Richard Scott]

My AI with long experience says all you need to do is go over the surface with Scotch Brite. Tried it & it seems to work well & it doesn't take long. Then degrease with acetone & spray away!

[g_e_young]

Sounds good. I actually did that on the exterior of my -6 and it worked really well, but I was never sure if I was actually following the 'rules'.

Thx,
g-

[4kilo]

Here is a link to some more information on zinc chromate versus other primers:

http://www.tabshred.com/moe/primer.htm

Pat