The primer actually does a couple of things. It promotes adhesion, =
because the topcoats are better at looking goo than they are at sticking. =
Also, in the case of some of the zinc chromate primers (e.g., PPG DP-40, =
DP-50), the zinc chromate actually makes a chemical barrier against =
corrosion. Also, primers are often sandable (where sealers aren't) so you =
can get a smoother finish. The better primers are epoxy based, (PPG, =
Deft, and others) which makes them stick about as well as anything ever =
could, and also are tougher than nails, making a great subsurface for the =
topcoat. Primers are highly recommended.
Remember the contractors making those vehicles
1) Were in a hurry during WWII, aand didn't want to let anything (like =
applying addiotional paint) slow them down
2) Realized More paint costs more money.
3)Kept an eye open to see Who's looking? You have seen all sorts of =
defense contractors get in all sorts of troublle for skimping on Gov't. =
jobs.
Primer is better!
Lee
------------------------------
Date: 8/25/97 7:37 PM
To: Phillips, Lee
From: RKiser8375@aol.com
I have a question concerning repainting my M37. Apparently, the military =
did
not use primer when they painted their vehicles. Mine appears to have =
bare
metal underneath the OD #595-24087. Assuming I sandblasted the truck, is =
it
necessary for me to prime it before I repaint it?
Rob Kiser
Bright Orange '52 M37
=3D=3D=3D
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Date: Mon, 25 Aug 1997 21:54:46 -0400 (EDT)
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