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68ss 12-13-2005 02:07 PM

I am redoing a 68 camaro and i am putting new door shells on it. what do you sugget to coat the inside of the doors with? the last time i used undercoating and it worked fine and and all suggestions are welcome.

BarryK 12-13-2005 02:25 PM

Anything will work.

What I do be I dip them, sandblast or put on a new skin.
After the inside is cleaned up I mix up a quart of epoxy and than reduce it 50% with urethane reducer.

With the door laying on a stand I pour the quart and ahalf inside the door with duct tape on the out side of all holes such as door handle and drain holes.
Every 30 minutes I tilt the door all different angles so the epoxy runs in all the creases. After about four hours I pull the duck tape off and let the epoxy that is left run out.

Just did the same thing to my vette doors about two months ago.
I do the same thing on the underside of hoods so the epoxy gets under all the braces and I did the same thing on the big block vette hood a couple of months ago.

Too me this is a cheap way to seal off the inside of a panel and give it
the best protection you can.

I never said I was normal!

68ss 12-13-2005 02:30 PM

these are neww door shells. Do i still have to blast them or just scuff sand them? before i put the epoxy to them?

BarryK 12-13-2005 02:39 PM

For new panels I just hit with a red scuff pad or some 180 by hand whatever you have handy.

rusty428cj 12-14-2005 10:21 AM

Would you do the same thing to the inside of new doors even though you can't get in there to sand?

baddbob 12-14-2005 12:13 PM

I've done the inside of door scuffing on a few first generation camaros, there's a few areas that are tough to get at but most areas can be reached, even with gloves I usually cut my hands up a little, not fun. For used doors I do the epoxy thing then follow up with 3M rustfighter after all the paint work is done. Transtar also makes a good coating and cosmoline has worked good for years.

If you've got brand spankin new doors that were e-coated I would just scuff the inside up with a red scotchbright, epoxy prime, then put a nice bead of urethane sealer around the perimeter inside the shell leaving only the drain holes open, use your finger to tool a nice radius. Epoxy the outside of the sean and just apply enough sealer to seal the joint without any buildup for a factory look - I do my doorskins this way and have never ever seen one start rusting. With old doors cleanliness before your primer is sometimes a problem and this is where the cavity wax rust fighter spray helps, it's a self healing spray coating that will leach it's way into voids and will not harden. Just my 2 cents.

BarryK 12-14-2005 12:29 PM


Originally Posted by rusty428cj
Would you do the same thing to the inside of new doors even though you can't get in there to sand?

I have and figure even you you only gain a 50% adhesion its not going to be getting stone chips or exposed to the outside to cause problems.

OneMoreTime 12-14-2005 01:56 PM

Bed liner product??
I have thought about using the bedliner product to seal all the undersides and interior of my next project..whenever that comes..seems to me that would seal all the spots and cracks and crevices where moisture could get in and since it is a bit thicker could provide some sound deadning..Even use it in the whell wells and such to protect against stone chips and such in there..


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