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YOUR RESEARCHOEM Undercoating
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case, the rubberized stuff definitely decreases noise
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That is probably the case, the rubberized stuff definitely decreases noise, but I unfortunately can't make any specific recommendations for a product, especially that will match the Porsche stuff.
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For some of you who follow my channel you know I'm repairing the rust damage to the passenger side of the car.
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case, the rubberized stuff definitely decreases noise
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That is probably the case, the rubberized stuff definitely decreases noise, but I unfortunately can't make any specific recommendations for a product, especially that will match the Porsche stuff.
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Greetings all,
For some of you who follow my channel you know I'm repairing the rust damage to the passenger side of the car. Well I'm getting to the part where I have to seal everything up. Under the car appears to be several millimeters thick layer of grey rubberized undercoating on just the floor pans. Is that stock? If so, does anyone know what a comparable, aftermarket brand would be? I'm looking at Eastwood, POR and 3M. This car will probably live the rest of its life in the south so no salt. However, I'd like to still protect it and match the colors as much as possible. Thanks!
This isn't quite what you are asking, but hopefully it helps. I have had great luck with POR 15. It is messy and nasty to put on, but if you do the prep right it is near impenetrable. It won't give you the same thick rubber absorbing effect of traditional undercoating, but it is about the best rust protection you can get and you can always put regular undercoating over top of it.
i agree with you on this one, my partner jake is really much more experienced than i do and when i saw this thread, honestly i wasnt sure i had the best idea in mind, i had wanted to comment earlier but waited till he got home, i called to ask him and this just a perfect explanation of what he told me
It seems to me that Porsche used it for sound deadening more so than rust prevention since it's only applied to the pans themselves and not the rest of the underside. I.e. the center tunnel is just painted.
That is probably the case, the rubberized stuff definitely decreases noise, but I unfortunately can't make any specific recommendations for a product, especially that will match the Porsche stuff. As I am sure you know, from the factory the metal was all galvanized, which is likely why Porsche just painted the tunnel. However, I'm assuming your patch panel is not galvanized unless you cold galvanized it after the welding or something, so you will want to hit it with some kind of rust preventer before the rubberized undercoating.
Actually the donor piece is straight from another wrecked 996. So it's galvanized but just not where the welds are.
I'd prefer to get a dark grey color undercoating to match but it seems black is the new grey. I guess I can just apply several coats of the stuff.
Wurth does not supply car manufacturers so porsche didn't use this but it's close:
W�rth 0892075300 is grey and paintable.
Not sure if available in North America
https://eshop.wurth.co.uk/Product-ca...0categorypageA
Alternatively 3M 08656 grey brushable seam sealer, paintable too
https://www.3m.com/3M/en_US/p/d/b40067208/
Or
Automotive Aftermarket Division 08800/08823 Sprayable Sealer
https://multimedia.3m.com � mws � media � 1399677O � 3m-sprayable-sealer-08800-08823.pdf
3M
�
08800
/08823 Sprayable Sealer 1) Part Numbers
08800
250 ml bag 08823 150 ml bag 2) Description and end uses
3M
� Sprayable Sealer is a two-part product with pre-measured mixing ratio filled in a unique and convenient throw-away package.
The above are taken from post #8 of this epic E30 M3 restoration (That thread wrote history in the E30 community)
https://www.r3vlimited.com/board/forum/e30-technical-forums/appearance-cosmetic/body-paint/112549-e30-m3-minor-rust-repair
That Wurth looks like the right one! However getting it in grey, in the USA, is an issue. Rennline appears to be the only vendor and they want 48.00 USD for 1 can of black.
Walmart is selling a Tekton brand:
https://www.walmart.com/ip/TEKTON-38...SellerId=13012
Matching the color with automotive paint might be easier.
Apply sound deadener/rust proofing, then paint over it.
That’s what I would consider doing if it were me.
