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Primer
- Thread starter Kenz
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Rustoleum makes a rusty metal primer that can be rolled.
I know boat paint which is usually too thick for sheet metal applications. But, Awlgrip products are mostly rollerable without the high buildup. If you're bare metal You can use Max Cor CF as a first coat and then 1-2 coats for their 545 epoxy primer. You'll have to buy the right reducers for rolling. You can't use foam rollers as the solvents dissolve them.
You can save a few dollars and use an inorganic zinc primer in place of the Max Cor CF. Devoe 302, Dimetcote 302, Interzinc 52 or 75V all work well.
If you're not bare metal you can use just the 545.
When working with epoxies the max recoat intervals are very short. Keep this in mind. 30 days for epoxy to epoxy and 3 days for epoxy to polyurethane are typical.
You can save a few dollars and use an inorganic zinc primer in place of the Max Cor CF. Devoe 302, Dimetcote 302, Interzinc 52 or 75V all work well.
If you're not bare metal you can use just the 545.
When working with epoxies the max recoat intervals are very short. Keep this in mind. 30 days for epoxy to epoxy and 3 days for epoxy to polyurethane are typical.
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I 2nd the use of an epoxy. Epoxy has great adhesion to bare metal as well as painted metal and will be your most moisture resistant primer, if left without top coating. I once stripped a 78 Camaro to bare steel, 1 coat of Dupont DP40LF epoxy primer, then it sat out in the weather for years with zero surface rust or little pimples forming. Most everything else is somewhat permeable to water, which can lead to rust forming under the primer if it gets wet, causing tiny rust pimples. 2K Epoxy is impenetrable by water.