Factory Underside Corrosion Protection, What did they coat the panels with? |
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Factory Underside Corrosion Protection, What did they coat the panels with? |
pek771 |
Oct 12 2021, 07:49 PM
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#1
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Member Group: Members Posts: 273 Joined: 23-November 05 From: Conover, NC Member No.: 5,175 Region Association: None |
I can't determine what treatment was used on a 70 regarding the underside. It looks like the steel was coated with something. Anyone have any ideas?
TIA Pat |
914werke |
Oct 12 2021, 08:05 PM
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#2
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"I got blisters on me fingers" Group: Members Posts: 10,034 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Rust (IMG:style_emoticons/default/av-943.gif)
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bkrantz |
Oct 12 2021, 08:07 PM
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#3
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914 Guru Group: Members Posts: 7,742 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains |
Don't exaggerate. The factory used a salt water rinse. |
pek771 |
Oct 12 2021, 09:05 PM
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#4
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Member Group: Members Posts: 273 Joined: 23-November 05 From: Conover, NC Member No.: 5,175 Region Association: None |
Well, there is something in or on the underside panels, ie the floor pans. I scraped all of the old dirt and leaking fuel off...I took some scrapings outside and set them on fire. They burned. Anyway, Remember how the old time pots and pans were coated with something that made them shiny? Same sort of stuff, it seems.
The lack of rust on this tub is astounding. |
r_towle |
Oct 12 2021, 10:06 PM
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#5
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Custom Member Group: Members Posts: 24,570 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Dealer undercoating
They came only pre-rusted from the long boat ride from the factory. |
SKL1 |
Oct 12 2021, 10:30 PM
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#6
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Senior Member Group: Members Posts: 1,597 Joined: 19-February 11 From: north Scottsdale Member No.: 12,732 Region Association: Upper MidWest |
Come on guys, I thought only Fiat used salt water based paint!!! Ask my college room mate who had a 124 spider!!
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930cabman |
Oct 13 2021, 04:43 AM
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#7
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Advanced Member Group: Members Posts: 3,007 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States |
Come on guys, I thought only Fiat used salt water based paint!!! Ask my college room mate who had a 124 spider!! Lets not forget the 850 spider. Many of our 914's were undercoated with a tar like product at the dealers, some probably have Ziebart. From what I understand the only protection from the elements was a heavy coat of paint. |
Superhawk996 |
Oct 13 2021, 05:48 AM
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#8
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914 Guru Group: Members Posts: 5,769 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
Remember how the old time pots and pans were coated with something that made them shiny? You mean seasoned cast iron pans? (IMG:style_emoticons/default/av-943.gif) Seasoned with lard, baked into the open grain structure of cast iron. Heated until the oils seeps into the metal and burns ever so slightly. Rinse lather repeat until the pores of the metal are filled with burt oil residue and things no longer stick to the cast iron. Yeah, pretty much same thing used to coat 914 engines (IMG:style_emoticons/default/lol-2.gif) |
Quinn Moore |
Oct 13 2021, 03:31 PM
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#9
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Qmoore Group: Members Posts: 107 Joined: 13-July 21 From: Fox River Grove, IL Member No.: 25,718 Region Association: Upper MidWest |
I can't determine what treatment was used on a 70 regarding the underside. It looks like the steel was coated with something. Anyone have any ideas? TIA Pat Tough crowd...I don't know what it originally was (tar, joke) I have some spots in the wheel wells that need touch up. Advice I received was.....get the loose stuff off (moisture gets in between...then rust), and hit it with "Wurth". Rubberized undercoating. There's other brands too. Got some rattle cans from Pelican. https://www.pelicanparts.com/More_Info/WRTH...3BoCmSgQAvD_BwE QM |
pek771 |
Oct 13 2021, 03:37 PM
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#10
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Member Group: Members Posts: 273 Joined: 23-November 05 From: Conover, NC Member No.: 5,175 Region Association: None |
Well, I determined (with the aid of ample drop lights and my glasses) that there is squat for undercoating. Evidently 40 year old fuel and dirt mix together to form some sort of coating like substance. I can remedy that.
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IronHillRestorations |
Oct 13 2021, 03:55 PM
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#11
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I. I. R. C. Group: Members Posts: 6,716 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
The chassis were phosphate coated, primed, and painted. That’s it. Dealers and 3rd parties did some undercoating too. There was one contract hauler on the west coast that arbitrarily undercoated every new car they hauled, to pad the bill
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burton73 |
Oct 13 2021, 05:05 PM
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#12
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burton73 Group: Members Posts: 3,510 Joined: 2-January 07 From: Los Angeles Member No.: 7,414 Region Association: Southern California |
Wurth’s RUBBERIZED UNDERCOATING PAINTABLE
The total underside and longs where coated with Tan Worth’s. PMB had a dolly at body shop to get the same amount of overspray the factory had. Not too much color in my case Cannery Yellow on this 1970 914-6 very early car 30th one down the production line. This helps when rocks are thrown up from the road Bob B |
Jett |
Oct 13 2021, 05:41 PM
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#13
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Senior Member Group: Members Posts: 1,637 Joined: 27-July 14 From: Seattle Member No.: 17,686 Region Association: Pacific Northwest |
Well, there is something in or on the underside panels, ie the floor pans. I scraped all of the old dirt and leaking fuel off...I took some scrapings outside and set them on fire. They burned. Anyway, Remember how the old time pots and pans were coated with something that made them shiny? Same sort of stuff, it seems. The lack of rust on this tub is astounding. I removed the black undercoating using a combination of heat/scraping and carb cleaner. Worked well (IMG:style_emoticons/default/smile.gif) |
Jett |
Oct 13 2021, 05:41 PM
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#14
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Senior Member Group: Members Posts: 1,637 Joined: 27-July 14 From: Seattle Member No.: 17,686 Region Association: Pacific Northwest |
Wurth’s RUBBERIZED UNDERCOATING PAINTABLE The total underside and longs where coated with Tan Worth’s. PMB had a dolly at body shop to get the same amount of overspray the factory had. Not too much color in my case Cannery Yellow on this 1970 914-6 very early car 30th one down the production line. This helps when rocks are thrown up from the road Bob B Lovely work!! |
raynekat |
Oct 13 2021, 06:22 PM
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#15
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Advanced Member Group: Members Posts: 2,154 Joined: 30-December 14 From: Coeur d'Alene, Idaho Member No.: 18,263 Region Association: Pacific Northwest |
Porsche in the early days used a brown waxy product called cosmoline on all the 911's. Not sure about the 914's?
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tazz9924 |
Oct 13 2021, 06:58 PM
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#16
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Senior Member Group: Members Posts: 703 Joined: 31-May 15 From: Mooresville NC Member No.: 18,779 Region Association: None |
salt water
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Maltese Falcon |
Oct 13 2021, 09:48 PM
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#17
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Advanced Member Group: Members Posts: 4,636 Joined: 14-September 04 From: Mulholland SoCal Member No.: 2,755 Region Association: None |
Porsche in the early days used a brown waxy product called cosmoline on all the 911's. Not sure about the 914's? My 1974 914 came in at the Dealership all oversprayed with that Cosmoline underneath the car. Trans, engine case, axles + c/v's, trailing arms.You could write the mechanic a note on the valve cover with a fingernail (IMG:style_emoticons/default/biggrin.gif) |
Geezer914 |
Oct 14 2021, 05:39 AM
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#18
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Geezer914 Group: Members Posts: 1,393 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States |
I under coated mine with Herculiner truck bead coating.
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barefoot |
Oct 14 2021, 05:54 AM
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#19
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Senior Member Group: Members Posts: 1,270 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States |
Porsche in the early days used a brown waxy product called cosmoline on all the 911's. Not sure about the 914's? My 76 has waxed stuff in the doors, assume it was factory. Had black undercoating that came off rather easily to expose nice red paint under (IMG:style_emoticons/default/smile.gif) |
Mikey914 |
Oct 14 2021, 09:53 AM
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#20
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The rubber man Group: Members Posts: 12,649 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
I have a thread showing the factory PVC coating. I was confused when I found it.
http://www.914world.com/bbs2/index.php?sho...vc+undercoating Attached thumbnail(s) |
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