Page 2 of 2 FirstFirst 12
Results 11 to 19 of 19

Thread: smoothly bonding metal and bondo?

  1. #11
    Raw Wave shotgunefx's Avatar
    Join Date
    Apr 2005
    Location
    Boston, MA
    Posts
    1,800
    Quote Originally Posted by Altimat
    Bondo sticks to metal great just sand it well first. Spot putty is the devil use it very sparingly and only for the very smallest imperfections and pinholes.
    I dunno, that bondo orange putty worked great. I mean, I made a tip of it, no backing. It's been weathering things well now for a few months. (Including 70+ inches of snow)

  2. #12
    Maximum Bitrate Altimat's Avatar
    Join Date
    Oct 2003
    Location
    WI
    Posts
    764
    Well it worked for you, but it will have shrunk like crazy by the time it finally dries, can crack, is brittle, and I almost never used it when I restored cars for 15 years. I bet it falls off someday. Thats why it only costs $2. Plaster or drywall mud would work as well.
    Fabricator

  3. #13
    Raw Wave shotgunefx's Avatar
    Join Date
    Apr 2005
    Location
    Boston, MA
    Posts
    1,800
    Quote Originally Posted by Altimat
    Well it worked for you, but it will have shrunk like crazy by the time it finally dries, can crack, is brittle, and I almost never used it when I restored cars for 15 years. I bet it falls off someday. Thats why it only costs $2. Plaster or drywall mud would work as well.
    I'm not saying it will last forever or even that it is ideal, but I think your understimating it. I used some to smooth out my plaster negative mold of my touchscreen and the glass took to it, and the **** won't sand off (Not easily anyway). As far as shrinking, that's why I worked it up in coats. Then I sanded it to get the same round tip as the other side and still it held. Temperature has been all over the place so thermal expansion can't be that bad either (It's been on months). Though it probably helps that the spoiler is hollow. The big chip (which is the bigger fill) probably allowed the bondo to get inside for a better grip.

    I would think in a low stress part like that it would be ok.

    this is the putty I'm referring to BTW.

  4. #14
    Variable Bitrate
    Join Date
    Oct 2003
    Location
    Chicago, IL
    Posts
    284
    Quote Originally Posted by Altimat
    Bondo sticks to metal great just sand it well first. Spot putty is the devil use it very sparingly and only for the very smallest imperfections and pinholes.

    Oh, its stuck to it great, thats not really the issue. Its moreso for some reason there is a visible difference between the metal and the bondo.

    Ive used the spot putty in the past on molding 7" screens in and did not seem to run into many problems. But then again, I sold them and haven't seen them, heh.
    Mazdaspeed Car Computer
    gotta redo it all

  5. #15
    Low Bitrate
    Join Date
    Mar 2005
    Posts
    59
    bondo sticks to metal, hence the term body (as in autobody)filler.

  6. #16
    Variable Bitrate
    Join Date
    Oct 2003
    Location
    Chicago, IL
    Posts
    284
    k, guys, great news (well, for me, ya'll probably dont care much ) but i did bunch of layers of high build primer and then wetsanded with some 400, its looking much better! its definetly getting to the point where i want it. awesome, thanks guys!
    Mazdaspeed Car Computer
    gotta redo it all

  7. #17
    Raw Wave shotgunefx's Avatar
    Join Date
    Apr 2005
    Location
    Boston, MA
    Posts
    1,800
    Quote Originally Posted by Dexter
    k, guys, great news (well, for me, ya'll probably dont care much ) but i did bunch of layers of high build primer and then wetsanded with some 400, its looking much better! its definetly getting to the point where i want it. awesome, thanks guys!
    Cool. Actually, I'm always interested to see what works and doesn't for others.

  8. #18
    Low Bitrate
    Join Date
    Mar 2005
    Posts
    59
    another tip for you...Duratec surfacing primer. You can build it up to 15 mils.

  9. #19
    Newbie
    Join Date
    Mar 2009
    Posts
    1
    How is the molding of your screen dude...??? wish i could see those ....




    _________________
    Rapid Tooling

Page 2 of 2 FirstFirst 12

Similar Threads

  1. should i use bondo to do this? suggestions...
    By therussman2002 in forum Fabrication
    Replies: 3
    Last Post: 01-09-2005, 03:03 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •