:TU: I have my frame ready for paint , just wondering if it has to be primed.... I want to use a semi gloss hi temp paint (engine enamel). A friend says to use DP 50 epoxy primer with no top coat.... I dont like the idea , told it will pull moisture & I don't want a thick build up (chips to easy) When I was stripping the factory finnish it seemed to be soft , tar like , it was not under coated has anyone else run in to this ? One other thing, my firewall looks to have a green tint to it . My car is Sandpiper (tan) & built in Fremont plant (1971) I have seen this on many GM cars through the years & just wonder why so many owners repaint in semi-gloss black ? Thanks for your input & may the torque be with you ! ick.
DP-50 is the way to go it is a sealer primer, not porous like other primers. Two coats, wet on wet, and your good to go, also easy to touch up.
I forgot to mention that DP-50 has rust inhibitors that will protect the metal. That is why it is the best chioce.
If it was my personal car I would use POR 15 ..rattle car? no way . DPLF there is no more DP needs an activator and will set you back $70 or so per quart and it aint as tuff as the por
For show cars I spray a couple good coats of epoxy high build primer. Sand it good with around 500 paper. Then top it off with Chasis Black. All this after a media blasting and smoothing any rust pits. For a driver, I would use plain old POR15.
This is the primer I used: http://www.masterseriescoatings.com/index/primer/ It's a moisture-cured urethane (MCU). Followed by a top coat of their AG 111 two-part urethane. Used together, it has demonstrated 14,000 hrs salt-spray rating.
