[R-390] R-390 Polishing

[tburr@dixie-net.com]

Dave

Think I used some of this yellow stuff in the military, which was a yellow
color zinc-chromate material.  Used by military and commerical on exposed
aluminum and ferrous metal surfaces for the purpose of corrosion
prevention.  Not sure if this is the same stuff as is on the R-390
chassis, as it appears to be some sort of anodizing, and could very well
be a zinc based anodizing process.  I do know the zinc-chromate coating
was very effective, but toxic, and has since been banned by EPA.  It was
used to reflect / dissipate heat on military commo equipment, as well as
corrosion prevention on aircraft, and certain military hardware.  It will
usually be  greenish or yellow in color.  I did know a source for this
material. You can no longer get it down at the local automotive paint
store.  I stripped and coated a Ford A Model with it about ten years ago. 
It is no longer commercially available.  Contact me, if interested, and I
will see if I can find the source for the zinc-chromate. It doesn't take
much to do the job.

Terry.