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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Oct 2001 Posts: 578 'Bolter | | 'Bolter Joined: Oct 2001 Posts: 578 | Do you prime bare metal before using any bondo?
"Happiness equals reality minus expectations" - Tom Magliozzi
| | | | | Joined: May 2007 Posts: 275 Shop Shark | | Shop Shark Joined: May 2007 Posts: 275 | You can apply plastic filler (bondo) over primer but bare metal is best. I usually apply a couple coats of Epoxy Primer on bare metal and plastic filler over that.
Frank
No better smell than that of fresh paint. I've been building and painting cars/trucks for 47 years. Not gonna stop now. http://www.coxcustomcars.com/ | | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | Do you prime bare metal before using any bondo? The rougher the metal the better. It gives the plastic more "tooth". You can put plastic over primer or paint but keep in mind that while it will probably stick to the primer or paint, IF the primer or paint looses adhesion and peals your plastic will peal right along with it. That's why it's recommended putting in over bare metal.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
| | | | | Joined: Jan 2008 Posts: 176 Shop Shark | | Shop Shark Joined: Jan 2008 Posts: 176 | | | | | | Joined: Mar 2008 Posts: 3,750 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 3,750 | That kinda answers that one for me... Very interesting! 
1950 Chevy Advance Design 3100 in ScotlandIn the Stovebolt GalleryMore pix on Flickr. I've definately got this truck thing in my blood ... my DNA sequence has torque settings"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.
| | | | | Joined: Mar 2006 Posts: 1,703 Shop Shark | | Shop Shark Joined: Mar 2006 Posts: 1,703 | | | | | | Joined: Sep 2007 Posts: 2,644 Shop Shark | | Shop Shark Joined: Sep 2007 Posts: 2,644 | Pointless unless you plan to wreck your truck and maintain maximum amount of plastic filler after the wreck. Since there is no molecular bond between the filler and the base material any bond will fail.
Want a filler that will not separate from the base material, use body solder. | | | | | Joined: Oct 2006 Posts: 9,671 'Bolter | | 'Bolter Joined: Oct 2006 Posts: 9,671 | There ya go, I agree with ya 100% Woody. In an area that is highly stressed, for instance where the running board and rear fender are bolted together, I would only use lead. Just try to get the "lead out" if it's been properly preped and applied.
Denny Graham
Sandwich, IL
Denny G
Sandwich, IL
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