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11-27-2007 09:38 AM #1
CHR Member/Contributor
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- Jul 2003
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- Madison
- Car Year, Make, Model: '67 Ranchero, '57 Chevy, '82 Camaro,
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I much prefer using filler on bare metal with the metal scuffed to at least 60 grit for max adhesion to it.Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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11-27-2007 09:51 AM #2
CHR Member
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- Apr 2001
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- Car Year, Make, Model: 32, 40 Fords,
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If you're using the PPG DP line they talk about this on their data sheet. There are (at least) two schools of thought on this. You've heard the one, the other is based on the tendency (ability) of moisture to migrate through typical polyester fillers. The proponents of filling on top of the epoxy primer believe it to be a barrier to rust forming under the polyester filler. Both methods work, and many shops who are on the hook for warranteeing their work will fill on top of prepared epoxy primers without fear that the "mud will fall off".Your Uncle Bob, Senior Geezer Curmudgeon
It's much easier to promise someone a "free" ride on the wagon than to urge them to pull it.
Luck occurs when preparation and opportunity converge.
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Dammit, another good ol boy gone. Condolence to the family. RIP Mike
RIP Mike Frade, aka 34_40