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Doug C Samba Member
Joined: January 07, 2013 Posts: 255
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Posted: Tue May 28, 2013 3:47 pm Post subject: Spray can undercoating over old stock undercoating ? |
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I was wondering has anyone used spray can undercoating over stock undercoating? My car will be a daily driver and I do not feel the need or want to remove all the old rubberized undercoating from the bottom of my car just to add more of the same. But there are places where it's chipped off, thin or just crappy looking. I'd basically like to just freshen the whole underside up and make it look fairly nice. I see that rustoleum sells an inexpensive spray can of rubberized undercoating. I'm considering using this over my stock stuff. Would this work out ok for my needs? Would the original stuff even need much scuffing up (seems like it would not to me). I thought I'd just pressure wash the old coating and go to town with the spray can after all is dry. I would probably go thin over the original coating so as not to build up a huge thickness. Has anyone gone this route? Opinions, advice ? Thanks. |
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chuck1312 Samba Member
Joined: April 03, 2008 Posts: 10 Location: florida
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Posted: Sun Jun 02, 2013 3:27 pm Post subject: |
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I have to replace the entire floor of my 73 squareback. I would definitely clean it well, lose undercoating would not be good. I was wondering what to use under mine as well. There are a number of products out there. |
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Doug C Samba Member
Joined: January 07, 2013 Posts: 255
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Posted: Sun Jun 02, 2013 5:30 pm Post subject: |
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yea, I will go over everything lightly with a wire wheel to remove any loose stuff.. but I've already picked up a couple cans of the Rust-oleum rubberized undercoating, sitting in my garage waiting to be used. $5 a can at AutoZone, no shipping. I imagine it will do just fine for a driver, if I was doing a full on restoration and planned to enter shows.. I might go another route. |
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matt94gt Samba Member
Joined: April 29, 2014 Posts: 245 Location: Victoria BC, Canada
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Posted: Thu Oct 09, 2014 1:25 pm Post subject: |
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Sorry for reviving some old threads but I thought it would be best to post here.
Im in the same situation. I want to protect the underside of my 72 bus.
I do not want to remove the factory undercoat as most of it is in good shape, but in some areas it has peeled off and is showing surface rust.
I was thinking of wirebrushing the loose areas, and the bare areas then applying a rust paint such as eastwood rust block, or POR15. But after that I wanted to put on a similar product to the factory. I do not drive my car in salt and try to avoid rain so its more of a peace of mind.
I was thinking the 3M undercoating spray or the eastwood undercoating spray:
http://www.eastwood.com/ew-rubberized-rust-encapsulator-blk-aero-15-oz.html
http://www.amazon.com/3M-03584-Professional-Rubberized-Undercoating/dp/B002H9CMCQ
Then there is this product that Ive heard good things about:
http://www.noxudolusa.com/product/noxudol-900-aerosol/
Any thoughts on these vs each other?
Right now it looks like this:
Some areas in question that I want to clean up:
There is a place in town that says they will do it for about $400, I dont mind paying the extra to have it done right. They can lay down a thicker material with proper guns and said they powerwash, then wirewheel any loose areas, prime exposed areas then apply an undercoating that dries hard. _________________ 72' Sunroof Bus - Kansas Beige
http://www.vw-mplate.com/mplate-21257.htm
Build thread:
http://www.thesamba.com/vw/forum/viewtopic.php?p=7257521 |
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c21darrel Samba Member
Joined: January 22, 2009 Posts: 8206 Location: San Dimas
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