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Video tutorial on how to repair rust holes on your vehicle’s body panels using fiberglass. Now before I get into it, as a disclaimer, this is a budget repair and when done correctly can last for a very long time. However with that being said, if you are wanting to restore a vehicle properly, than this isn’t the repair for you. This is a repair where it can be done at home, doesn’t cost a load of money or require any specialty tools, and can easily clean up your vehicle. Fibreglass is strong, so it won’t fall out like a body filler even when using the reinforcement mesh. The two main concerns with fibreglass is that it doesn’t expand or contract like metal, so a repair maybe visible. And it may have bonding issues with steel, so both these areas will be covered in this video. I have used this method in the past for low budget daily drivers without any issues and it held up great despite living in an area where vehicles are exposed to harsh winters.
Surface Prep Sander Kit:
Air Die Grinder:
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Tools/Supplies Needed:
-grinder with cutting disc
-surface sander with 80 grit discs
-80 grit sandpaper
-180 grit sandpaper
-220 grit sandpaper
-320 grit sandpaper
-400 grit sandpaper
-600 grit sandpaper
-1000 grit wet/dry sandpaper
-1500 grit wet/dry sandpaper
-2000 grit wet/dry sandpaper
-sandpaper backing pad/sanding block
-chemical rust treatment
-wax and grease remover
-denatured alcohol
-clean lint free clothes
-plastic container
-paint brush
-stir stick
-fibreglass matting cloth
-2 part spot/glazing/finishing putty
-short strand fibreglass filler with hardener
-polyester laminating resin with hardener
-acrylic enamel single stage color matched paint
-black undercoating
-etching primer
-filler primer
-safety glasses
-latex/nitrile gloves
-respirator
-water
-bucket
-carwash soap
-polishing compound
-microfiber clothes
-painter’s tape
-paper
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© 4DIYers 2013
All Rights Reserved
No part of this video or any of its contents may be reproduced, copied, modified or adapted, without the prior written consent of the author.
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Likes: 14032
Views: 1031795
Good job American guy! Ps: i from Russia ))). respect
What was the product ou used to treat the rust?
Thank you this is so informative.
I did a rust repair on my back fender, my brother brazed a piece metal in the hole, and I put bondo and all the other steps did I wreak my job by not using fiberglass?
Just fixed a rust hole in my wheel arch using this method. Here are some tips for beginners from my experience:
1. Make sure to indent the metal around the hole. I forgot to do that step, and ended up with a bit of a hump in my repair area.
2. Don't use primer before using bondo. I had a lot of issues with bondo coming off in chunks, even after waiting for 3 hrs before using bondo.
3. Don't be afraid to use multiple layers of body filler. I thought I screwed up when multiple nicks appeared after sanding the filler, but as it turns out I just needed 2 more layers near the low spots. The key is several light applications of bondo.
4. Look at the repair area from multiple angles when using bondo. I thought that the area was level, but as I found out after applying primer the area was quite wavy. The longer you sand, the better your result will be.
5. Make sure your layers of fiberglass actually stick together. My front fiberglass piece, as it turns out, didn't stick to the back one, there was a gap due to the metal being in the middle.
6. When painting, make sure a big area around your repair area is clean. I now have multiple dust spots due to underestimating the paint area.
That's about all of my tips. I like this method a lot, and hope to get at least 3 years out of it before the rust comes back, perhaps even more.
i been repairing fiberglass pools latley… have all this stuff in gallons and yards of fiberglass rolls.. .. im gonna get to work on my 96 f159
nice work man
GOOD JOB
If the lip is rotted out around bottom back quarter panels would this method be pointless since the integrity of the shape has gone?
Looks awesome!