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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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 Posted: Thu Jun 25, 2015 8:20 am Post subject: Beginner bondo question |
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Working on my two rear fenders ((one at a time)
Sprayed them with epoxy primer inside and out. Then scuffed the surface with a red scotch Brite pad.
Mixed and applied some rage extreme (bondo) and sanded smooth. Things are feeling pretty good but I have sanded through to the metal in places:(
Doesn't this defeat the purpose of using the epoxy primer in the first place?
Can I respray the whole fender with etching primer in a spray can or it it not a good idea to mix Epoxy primer and etching primer?
I'm confused:( |
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c21darrel
Samba Member
Joined: January 22, 2009
Posts: 8211
Location: San Dimas
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buguy
Samba Member
Joined: November 17, 2003
Posts: 4915
Location: Port Orange, FL
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| Posted: Thu Jun 25, 2015 3:45 pm Post subject: |
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You can spray rattle can etch on them if you use something decent like SEM. But really all you need to hit is the bare area. Dont do the whole fender.
A better solution would be (make sure you can do it with your product) would be reduce the epoxy primer and use it as a sealer before painting. But you have to spray it right before you paint. |
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Doug C
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Joined: January 07, 2013
Posts: 255
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| Posted: Fri Jun 26, 2015 1:14 pm Post subject: |
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If you have epoxy primer left over and you're just trying to avoid the hassle of running and cleaning your regular paint gun, for such a small area.. you could mix some up in a small Preval sprayer, may have to reduce it a little. They're like $12 at your paint supply store. I'd make sure all your filler is nice and level first though, and hit the whole area. Heck with a small enough area you might get a way with brushing it on.
Doug C |
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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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| Posted: Fri Jun 26, 2015 6:40 pm Post subject: |
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So if I have 3 more fenders, hood, decklid, etc. to do I don't want these bare metal spots to rust up on me in the meantime.
So, how do I "preserve" this fender for the next month or so until we are ready to spray it? I know I'm not the only person that is in this predicament.
I don't have a sprayer handy:(
Doug, I guess I would need an air compressor to use the sprayer huh? Haha |
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Doug C
Samba Member
Joined: January 07, 2013
Posts: 255
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| Posted: Fri Jun 26, 2015 7:04 pm Post subject: |
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| '67 Sunroof wrote: |
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Doug, I guess I would need an air compressor to use the sprayer huh? Haha |
No, google Preval sprayers.. they are little re-usable aerosol sprayers. They come with a glass canister that you fill with your paint and it screws onto an (included) aerosol propellent canister. They are actually very convenient. No compressor needed.
Doug C |
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67 Sunroof
Samba Member
Joined: February 22, 2014
Posts: 1836
Location: Salisbury, MD
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| Posted: Fri Jul 03, 2015 11:12 pm Post subject: |
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| I bought like 4 for $35 on eBay. I think those will work ok.gonna sand get smooth then spray each fender with the epoxy primer when I am close to done? |
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