undercoating

VW's aircooled mini SUV. Great for riding in the country, or cruising the beach.
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mstatedog
Posts: 71
Joined: Thu Sep 04, 2003 4:54 pm

undercoating

Post by mstatedog »

any recommendations on what to use to remove original undercoating from the fenderwells....mine is cracked pretty bad and some has peeled off in huge pieces.....any ideas on something thats not real messy? also, any ideas on what to go back with and what not to go back with?


thanks,

mdog
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suntour
Posts: 152
Joined: Wed Aug 25, 2004 11:15 pm

Post by suntour »

I find a wire brush cup on my 4 1/2" grinder works great for getting that stuff off. Clean, however, is not a work I would use to describe the process. Also if you do this use a shield that covers 100% of your face. Those wires come flying off at the speed of light and really hurt! I have also used xyelene (SP?, you know that stuff in Goof Off.) to get it off, but that stuff is really toxic for you. I hear paint stripper works too, but once again super toxic.

As for what to put on? I am still trying to figure what to use myself. I have used Henry black top coating. Works great and super cheap but you'll never get it off with out a fight and I don?t think it looks that great. But it really seals the undercoat. I still have not used the POR15, but it sounds like it is great stuff.
Capn Skully
Posts: 400
Joined: Mon May 05, 2003 5:56 am

Post by Capn Skully »

When I redo beams and under stuff I scrap the whole thing and a great deal of it just flakes right off. Then I sand blast with a small pot blaster. the most ideal coating is POR-15 the stuff is hard as nails.

I have also used an undercoat spray can product made by duplicolor. Be sure to get the more expensive one. They have a cheap $3 a can product that doesn't dry.
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mstatedog
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Post by mstatedog »

thanks, i would like to use something kind of thick like the original undercoating. POR-15 is rock hard but wouldn't protect the fenders from rock dings. The POR-15 also doesn't accept a top-coat very well. Has anyone tried Rust Encapsulator sold by eastwood? I was going to try it under an undercoating of some type but don't know how well it accepts top coats.


mdog
Capn Skully
Posts: 400
Joined: Mon May 05, 2003 5:56 am

Post by Capn Skully »

In defense of POR-15 it does resist rock chips very well. It also has a top coat but you have to buy thiers.

Seems like you already have your mind made up so are you just looking for validation? I have used many of the POR-15 products so I am relaying my actual experience.

Your results may vary, "G"
super vw
Posts: 181
Joined: Tue Oct 28, 2003 6:41 pm

Post by super vw »

its all about the wurth (brand name) under seal.... you can buy it in bulk, looks good, holds up great! i think they have it in spray cans to.
GothingNC
Posts: 285
Joined: Thu Nov 14, 2002 12:01 am

Post by GothingNC »

I've used 3M undercoating I picked up from a body shop.

I applied it 10 years ago and it's still holding up very well.

The nice thing about the stuff was that it didn't drip and cause a mess in my driveway.
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mstatedog
Posts: 71
Joined: Thu Sep 04, 2003 4:54 pm

Post by mstatedog »

Capn Skully wrote:In defense of POR-15 it does resist rock chips very well. It also has a top coat but you have to buy thiers.

Seems like you already have your mind made up so are you just looking for validation? I have used many of the POR-15 products so I am relaying my actual experience.

Your results may vary, "G"
No, I'm not looking for "validation", I was looking for ideas. My mind is not made up....I have tried POR-15 and have gotten good results except when trying to top-coat. I was wondering if rust encapsulator was any better or easier to work with. My thinking was to use something like the rust encapsulator, then coat with some type of undercoating that was similiar to the original. The thick undercoating would protect the fenders from rock dings that might dent the metal and show on the outside.

The store bought undercoating that I have seen are typically kind of thin.

thanks,

dog
alsehendo
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Joined: Thu Nov 29, 2001 12:01 am

Post by alsehendo »

How about the pickup bed stuff, I used it on the inside and am considering using on the bottom of the pan. I dont think I want to do a body seperation yet, because it came from Colorado desert this spring and ther just isn't any rust-so I wouldn't be able to do the whole pan before winter.

Wish I could bring myself to use it this winter, this would be great fun--sorta like an onroad snowmobile. Strap the boards to the roll bar; put on the ski goggles and head for the hill 4 miles away--mabe bust a few drifts on the way. Dont need a defroster if you dont have a windshield!

What do you all think will it be insta rot for the Thing? UP roads get mega salt.

Anybody ever had a snapon cover to go over the pasenger area made?
GothingNC
Posts: 285
Joined: Thu Nov 14, 2002 12:01 am

Post by GothingNC »

Well, I decided not to sell the bug.

I have too much of an attachment to it and memories.

I figure it's cheaper to just fix the minor imperfections and if the cold really starts to bother me I'll just plunk down the cash and purchase a new gas heater system.
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