What you have to worry about is using too slow of a solvent. If the coating
dries before the solvent escapes, you will get blistering. MEK is the
fastest solvent available to the handyman so call the Zinc chromate
manufacturer and see if MEK will react with the coating, if not, spray
away. We use a epoxy primer
http://www.shieldfinishes.com/nauticoat_epn1y1.asp and our reducer
http://www.shieldfinishes.com/nauticoat_srn12.asp reduced no more than 10%
to coat mast systems. How are you going to apply the primer?
Good Luck
Bruce

Shield Finishes and Nauticoat Marine Finish Systems
www.shieldfinishes.com


"Len" wrote in message
news:1105439797.659e87b42116d75726230568c2de914e@t eranews...
wrote:

I need to coat the inside of an aluminum pontoon with zinc chromate, in
order to do this it must be thinned. What solvent can be used to thin
zinc chromate?

Try Yec (Yachtpaints Equipment and Consultancy) in Vollenhove for
info. I met one of their consultants and am quite satisfied with their
knowledge. I'll email you with the number and address.
Good luck,
Len
S/v Present