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Old 11-10-2008, 01:22 PM
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brush on epoxy for floorboards?

So I've bought this fairly clean 'lil 1951 Plymouth for something easy and fun, a diversion from my home restoration of a 1967 Barracuda. The floorboards of the '51 are solid but there is surface rust/pitting underneath the "tar" coating. I don't want to get involved with "restoring" but I just can't move on, it would be a shame to let the floors go to crude.

It's temping to try one of those POR type products but after a lot reading here that doesn't seem the way to go. I'm leaning towards Oldred's suggestion of removing the rust with a wire brush and a phosphoric acid based product then coat with epoxy.

I have epoxy from the '67 project but don't need the overspray inside the '51. Does anyone know of a brushable epoxy primer that would work for this application? Would epoxy garage floor coating work?


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Old 11-10-2008, 01:55 PM
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Any automotive epoxy can be brushed but you need to let the first coat set
an hour or more (over night is best) before doing the second coat to let the solvents out that the gun is not atomizing out for you and to keep from moving the first coat when you apply the second coat.

Floor epoxy would be a useless exercise as they do not have corrosion protection and have other additives, so the warm tires do not leave a mark in the epoxy.
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Old 11-10-2008, 01:57 PM
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See this thread too. And please add any additional relevant information to the wiki article on epoxy primer.
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Old 11-10-2008, 07:42 PM
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Quote:
Originally Posted by BarryK
Any automotive epoxy can be brushed but you need to let the first coat set
an hour or more (over night is best) before doing the second coat to let the solvents out that the gun is not atomizing out for you and to keep from moving the first coat when you apply the second coat.

Floor epoxy would be a useless exercise as they do not have corrosion protection and have other additives, so the warm tires do not leave a mark in the epoxy.
Hi Barry,

That explains it great...I can put this info to good use! Does the time window for the second coat get longer when brushing on? If so, might you have a guideline/guesstimate on how long?
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Old 11-11-2008, 12:43 AM
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Thanks guys, I'll give it a whirl.
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Old 11-11-2008, 08:07 AM
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Quote:
Originally Posted by ScotY
Hi Barry,

That explains it great...I can put this info to good use! Does the time window for the second coat get longer when brushing on? If so, might you have a guideline/guesstimate on how long?
-------------------------------------------------------------

Whatever brand you use the open coat would start at the time you wipe the second coat.

Will brushing extend that? Depends on the solvency used in the system you are using, if a lot of different alcohols, maybe or maybe not but this is not something you want to guess at, just use the manufacturer's open coat times for spraying and you will be on your way.
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Old 11-11-2008, 10:47 AM
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I always brush epoxy behind body panels, etc. You'll be fine. Barry hooked you up with the info.
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Old 11-12-2008, 12:25 AM
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brushing epoxy

Wow good timing, I was just in my garage welding in my new hat rails for the 30 coupe on the rear area in the trunk and was wondering how I would spray the outer side of the rail. There's no room between the rail and the wheel weld area... I'll just brush it with epoxy. Thank you guy,s.
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Old 03-12-2009, 12:32 AM
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Barry did hook me up with the info! Should have posted the results awhile back.

thanks again.



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