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Old 11-03-2008, 04:57 PM   #1
Hair
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Location: Tullahoma, TN
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Undercoating prep

What should I do to the bottom of my floorboard before I undercoat it?
I've done some work on it and its' bare steel in many places. The original part of the floor is already undercoated, so I was just going to undercoat the new patch panels too and make it all match under there.
Do I just spray the undercoating over the bare steel?

...or etch prime, then coat?

...or etch prime, prime, then coat?

...or etch prime, prime, paint, and then coat?

...or what?
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Old 11-03-2008, 08:23 PM   #2
lax54650
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Re: Undercoating prep

i would etch prime seam seal then undercoat
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Old 11-03-2008, 08:24 PM   #3
JimKshortstep4x4
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Re: Undercoating prep

I epoxie prime, paint and coat with under coating.

Jim
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Old 11-03-2008, 08:59 PM   #4
8mpg
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Re: Undercoating prep

epoxy primer then coat. Etching is kind of a waste these days...it's expensive stuff.
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Old 11-03-2008, 10:48 PM   #5
lyrikz
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Re: Undercoating prep

Quote:
Originally Posted by JimKshortstep4x4 View Post
I epoxie prime, paint and coat with under coating.

Jim
I just did this today. I had bare steel. I epoxied it in case i missed anything with the undercoat. Then i sprayed AL's liner on the bottom. When sprayed right it looks JUST like linex.... Awesome stuff.. I will tell you in 48 hours how well it holds up....

If you go to my build thread i will have some updates soon with pics.. I put it on my core support also...
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