Undercoat
- Nathan Ward
- 356 Fan
- Posts: 56
- Joined: Sat Oct 23, 2010 5:06 pm
Undercoat
Hi, Is there a modern undercoat product that people are using for concours restorations?
- Joris Schweitzer
- 356 Fan
- Posts: 67
- Joined: Mon Nov 15, 2010 3:53 pm
Re: Undercoat
Hi, I've had great results with 3M 8868. Apply a second coat 2k satin laquer.
http://www.porsche356forum.eu/viewtopic.php?f=28&t=1810
http://www.porsche356forum.eu/viewtopic.php?f=28&t=1810
- Jim Liberty
- 356 Registry Member
- Posts: 4320
- Joined: Tue May 06, 2008 3:47 pm
- Tag: Jim
- Location: Orange Co., CA
- Contact:
Re: Undercoat
I start with a coat of NEVERRUST rolled and sprayed, then I use Wurth Shutz. Then a coat of RUST OLEUM semi-gloss, rolled and sprayed. If that is show quality, it is up for debate.
Most of us have pet products we like. Our attention to detail and use of multiple steps is far more carefully done than at the factroy. These cars were built for driving and profit for Porsche. Not for the concours circuit.
That said, it is a lot of fun doing it our way. .....................................Jim.
Most of us have pet products we like. Our attention to detail and use of multiple steps is far more carefully done than at the factroy. These cars were built for driving and profit for Porsche. Not for the concours circuit.
That said, it is a lot of fun doing it our way. .....................................Jim.
Jim Liberty
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- 356 Fan
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- Joined: Wed Nov 17, 2010 5:06 pm
Re: Undercoat
Jim Liberty wrote:I start with a coat of NEVERRUST rolled and sprayed, then I use Wurth Shutz. Then a coat of RUST OLEUM semi-gloss, rolled and sprayed. If that is show quality, it is up for debate.
Most of us have pet products we like. Our attention to detail and use of multiple steps is far more carefully done than at the factroy. These cars were built for driving and profit for Porsche. Not for the concours circuit.
That said, it is a lot of fun doing it our way. .....................................Jim.
Touche Mr. Liberty!
- Alain Buchert
- 356 Fan
- Posts: 232
- Joined: Wed May 20, 2009 6:54 am
- Contact:
Re: Undercoat
I got a execelent result with the product Wurth. "Underbody Seal"
https://shoponline.wurthusa.com/wurthus ... od=4238843
https://shoponline.wurthusa.com/wurthus ... od=4238843
Member #35046
356 BT 5 super75 1961
356 BT 5 super75 1961
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- 356 Fan
- Posts: 477
- Joined: Sat May 17, 2008 3:05 pm
Re: Undercoat
I have used the Wurth as well, followed by a layer of 2k 50% gloss black paint.
Etienne Kerkhoffs
1958 356A T2 Sunroof Coupe
1958 356A T2 Sunroof Coupe
- Steve Harrison
- 356 Fan
- Posts: 3301
- Joined: Sat Jan 24, 2009 11:39 am
- Location: Auburn AL
Re: Undercoat
You want the real thing? Roofing tar,..diluted with paint thinner so it will spray.
Use an undercoating or rustproofing gun,..one with a big orifice. You can get it from Eastwood And if you want to go Pre A original,...mix in some mica mineral flakes. For a Pre A put it on Thick.
Then after it's set a bit and the solvents have evaporated...go back with a propane torch and hit some wide spots to try to get it to "sag" if it hasn't done so on application...just like factory original.
I know of some serious concours cars that have been done this way.
Use an undercoating or rustproofing gun,..one with a big orifice. You can get it from Eastwood And if you want to go Pre A original,...mix in some mica mineral flakes. For a Pre A put it on Thick.
Then after it's set a bit and the solvents have evaporated...go back with a propane torch and hit some wide spots to try to get it to "sag" if it hasn't done so on application...just like factory original.
I know of some serious concours cars that have been done this way.
- Graham Kidd
- 356 Fan
- Posts: 55
- Joined: Fri Jun 20, 2008 5:57 pm
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- 356 Fan
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- Joined: Tue Apr 01, 2008 9:34 am
- Location: Tampa area, FL
Re: Undercoat
Ditto on Graham's posting....and 3M Body Schutz on 200 before that.
"Back in the day" (on yet another 200 or whatever...I've lost count ) we used commercial asphaltic undercoat cut with lacquer paint left-overs that when mixed together made a sort of black, as thinner, a-la Steve's posting.
Like the clean-up of waterborne! However, the cost may be a little salty for one-timers. The gun pictured below costs about as much as one of Vic's lesser Lugers and the SKS is about $30/liter and we average a case (12 liters) per 356. For fun, Google "Vibrant Curiosity," Herr Wurth's boat. Hey, his Vater und Grossvater sold hardware to German coachbuilders and likely there is some on our 356s.
http://elitechoice.org/2009/04/03/rein- ... curiosity/
http://www.flickr.com/photos/oenilsen/3542234116/
http://yachts.monacoeye.com/files/ocean ... iosity.php
In the '60s, we were 'repairing' and not 'restoring.' We were blending texture into original, as most cars back then were 'original' in all aspects. I have heel marks in my butt from kicking myself most days for not taking better notes and more pictures of that rapidly fading resource.....but back then, who knew where all this was going?
"Back in the day" (on yet another 200 or whatever...I've lost count ) we used commercial asphaltic undercoat cut with lacquer paint left-overs that when mixed together made a sort of black, as thinner, a-la Steve's posting.
Like the clean-up of waterborne! However, the cost may be a little salty for one-timers. The gun pictured below costs about as much as one of Vic's lesser Lugers and the SKS is about $30/liter and we average a case (12 liters) per 356. For fun, Google "Vibrant Curiosity," Herr Wurth's boat. Hey, his Vater und Grossvater sold hardware to German coachbuilders and likely there is some on our 356s.
http://elitechoice.org/2009/04/03/rein- ... curiosity/
http://www.flickr.com/photos/oenilsen/3542234116/
http://yachts.monacoeye.com/files/ocean ... iosity.php
In the '60s, we were 'repairing' and not 'restoring.' We were blending texture into original, as most cars back then were 'original' in all aspects. I have heel marks in my butt from kicking myself most days for not taking better notes and more pictures of that rapidly fading resource.....but back then, who knew where all this was going?
- Alain Buchert
- 356 Fan
- Posts: 232
- Joined: Wed May 20, 2009 6:54 am
- Contact:
Re: Undercoat
Here are my bottom with the product Wurth.
Uploaded with ImageShack.us
I do not see the boat, But for my job I contributed to the realization of a building.
The man also has a fine collection of art paintings
http://www.musee-wurth.fr/en/secondaire ... index.html
Uploaded with ImageShack.us
Uploaded with ImageShack.us
I do not see the boat, But for my job I contributed to the realization of a building.
The man also has a fine collection of art paintings
http://www.musee-wurth.fr/en/secondaire ... index.html
Uploaded with ImageShack.us
Member #35046
356 BT 5 super75 1961
356 BT 5 super75 1961
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- 356 Fan
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- Joined: Tue Apr 01, 2008 9:34 am
- Location: Tampa area, FL
Re: Undercoat
Interesting work by Anselm. Thank you, Alain, for sharing...and especially for the English language version of the museum website.Alain Buchert wrote: But for my job I contributed to the realization of a building.
The man also has a fine collection of art paintings
http://www.musee-wurth.fr/en/secondaire ... index.html
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- 356 Fan
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- Joined: Sat Sep 14, 2019 6:10 pm
- Tag: Project Meister
- Location: Atlanta, GA
Re: Undercoat
I see some guys shoot the Schutz before final color and some after. Let me hear some opinions please on both ways. Thanks
57 356A
68 912
73 911S
66 Land Cruiser FJ45LV
71 Land Cruiser FJ40
79 450 SL
68 912
73 911S
66 Land Cruiser FJ45LV
71 Land Cruiser FJ40
79 450 SL
- Sebastian Gaeta
- 356 Fan
- Posts: 3055
- Joined: Tue Mar 25, 2008 5:50 pm
- Location: Ann Arbor, MI
Re: Undercoat
The fully documented, one owner unmolested Ruby Red '58 coupe in Neil's book had overspray from the Reutter paintbooth on the undercoating:
Sebastian Gaeta
www.arbormotion.com
Registry #8339
'65 C coupe
'64 C cab
-------
2014 Boxster 981
2005 997 C2 Cab
1967 Karmann Ghia Convertible
1966 VW Single Cab
1966 Ducati Cafe Racer
1964 Karmann Ghia Coupe
1963 Beetle
www.arbormotion.com
Registry #8339
'65 C coupe
'64 C cab
-------
2014 Boxster 981
2005 997 C2 Cab
1967 Karmann Ghia Convertible
1966 VW Single Cab
1966 Ducati Cafe Racer
1964 Karmann Ghia Coupe
1963 Beetle
-
- 356 Fan
- Posts: 467
- Joined: Sat Sep 14, 2019 6:10 pm
- Tag: Project Meister
- Location: Atlanta, GA
Re: Undercoat
I was not meaning for originality reasons, I was meaning for simplicity of restoration etc. It may be the way they did it at the factory, but I don't think I could bring myself to allow overspray to go all over my nice fresh Schutz.Sebastian Gaeta wrote:The fully documented, one owner unmolested Ruby Red '58 coupe in Neil's book had overspray from the Reutter paintbooth on the undercoating:
57 356A
68 912
73 911S
66 Land Cruiser FJ45LV
71 Land Cruiser FJ40
79 450 SL
68 912
73 911S
66 Land Cruiser FJ45LV
71 Land Cruiser FJ40
79 450 SL
- Sebastian Gaeta
- 356 Fan
- Posts: 3055
- Joined: Tue Mar 25, 2008 5:50 pm
- Location: Ann Arbor, MI
Re: Undercoat
Mark Erbesfield wrote:I was not meaning for originality reasons, I was meaning for simplicity of restoration etc. It may be the way they did it at the factory, but I don't think I could bring myself to allow overspray to go all over my nice fresh Schutz.
I don't blame you at all for not wanting the overspray!! This just shows that the factory did the undercoat first for whatever that is worth.
It is intersting to note that Reutter then brush painted black paint over their overspray. Prehaps they were more worried about undercoat on fresh paint and not vice versa.
Regards,
Sebastian Gaeta
www.arbormotion.com
Registry #8339
'65 C coupe
'64 C cab
-------
2014 Boxster 981
2005 997 C2 Cab
1967 Karmann Ghia Convertible
1966 VW Single Cab
1966 Ducati Cafe Racer
1964 Karmann Ghia Coupe
1963 Beetle
www.arbormotion.com
Registry #8339
'65 C coupe
'64 C cab
-------
2014 Boxster 981
2005 997 C2 Cab
1967 Karmann Ghia Convertible
1966 VW Single Cab
1966 Ducati Cafe Racer
1964 Karmann Ghia Coupe
1963 Beetle