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#1
10-05-2013, 03:05 PM
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Old skool bondo?
Alrighty - question for the auto body experts out there...
Dealing with a couple self inflicted wounds (sorry yada!), it seemed to make sense to also deal with the little rust bubble along the right rear wheel well. Peeling back the layers, it is now clear that the whole right side of me car has been "dealt with" at some point in the past. On to the question: the filler used at some point in the past to pretty much re-sculpt the wheel arch on my car is yellow-ish in color. Smells absolutely NOT bondo-like when sanded. Seems to be pretty dang soft, pulling and shredding vs. nice clean sanding. Any clue what the H E double hockey sticks I'm dealing with?
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1961 220b: first project car - sold. 2000 CLK 430: first modern Benz - sold. 2001 CLK 55: OMG the torque!!! - sold 1972 280SE 4.5: Baby Gustav 1991 300TE 4Matic: Gretel the Snow Bunny - sold 1978 300SD: Katz the Free Man - given away 1980 Redhead: Darling Wife 
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#2
10-05-2013, 03:41 PM
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probably not mixed correctly and never quite setup.
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#3
10-05-2013, 03:54 PM
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Have you checked the rear diff for Bondo?
__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco...  " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
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#4
10-05-2013, 07:20 PM
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i believe that was sawdust!
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#5
10-05-2013, 08:46 PM
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Quote:
__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod 2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."
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#6
10-06-2013, 02:30 PM
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Bondo is not waterproof. If their were previous holes short haired fibreglass should have been the first waterproof fill layer.
It has been my practice to actually build up pretty far with waterproof fillers and then a small layer of bondo for easier finishing where needed. No holes you can use all bondo I imagine. You have to keep the moisture out if there are any indications of perforation. You asked for experts opinions. Unfortunatly I am not one. Instead just having some experience with my own vehicles over the years. Plus one of my friends now deceased was an abnormally greatly skilled auto body guy. He always passed along advice when requested. Even worse in my opinion is if the bondo absorbs moisture from the backside holes or whatever over time it will swell a little. Perhaps not enough for the average guy to pick up but I do sometimes. The paint protects the outside of the bondo from moisture absorption. It is up to the individual to protect the backside where perforations may exist. Short or long haired fiberglass filler does this well and personally I find it more stable as well. Last edited by barry12345; 10-07-2013 at 09:25 AM.
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#7
10-06-2013, 04:31 PM
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There was/is some gold colored Bondo- I forgot what it is called but IIRC it's their premium line. Still absorbs water though so get it out of there.
__________________
80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)
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