Pablo,
No, Bondo didn't exist until the late 60's - early 70's.
What they used to do (and what is now a lost art) was lead. Lasts longer and shapes as easy (altbit more toxic and causes more problems in cleanup... "heavy metals" and whatnot). Heat the lead up to softening temperature (not melting) temperature and drip it onto the body panel you're working on, then work it with a wax-coated, wooden spatula. File the surface down as needed.
Bondo, on the other hand, is just mix, apply with a plastic applicator, sand to your needed contour (repeated as many times as necessary), seal, prime and paint.
(And, yes, I'm oversimplifying the explanation of both processes, for the sake of discussion. Others who have done either type of body work can feel free to chime in for a more detailed explanation if they so choose.)
No, Bondo didn't exist until the late 60's - early 70's.
What they used to do (and what is now a lost art) was lead. Lasts longer and shapes as easy (altbit more toxic and causes more problems in cleanup... "heavy metals" and whatnot). Heat the lead up to softening temperature (not melting) temperature and drip it onto the body panel you're working on, then work it with a wax-coated, wooden spatula. File the surface down as needed.
Bondo, on the other hand, is just mix, apply with a plastic applicator, sand to your needed contour (repeated as many times as necessary), seal, prime and paint.
(And, yes, I'm oversimplifying the explanation of both processes, for the sake of discussion. Others who have done either type of body work can feel free to chime in for a more detailed explanation if they so choose.)
~Erik Paulson
Moderator: BNSF :: CN :: CP :: Rock Island :: Rebuilders & Small Loco Works :: Worldwide Railfan :: Western Railfan
Moderator: BNSF :: CN :: CP :: Rock Island :: Rebuilders & Small Loco Works :: Worldwide Railfan :: Western Railfan