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+--- Thread: Best body filler for plastic bumpers? (/showthread.php?tid=8640)
Best body filler for plastic bumpers? - sprinter2012 - 13-08-2019
As the title says, I have a new bumper which requires some filling in a couple of areas.
It's an ABS plastic bumper (like the TRD/TTE bumpers/skirts are made of)
So needs to be able to bond to plastic, and I would think it needs to remain slightly flexible so it doesn't crack if the bumper bends while being fitted/sprayed.
Any advice appreciated
Best body filler for plastic bumpers? - sprinter2012 - 13-08-2019
Sort of answered this myself, although anyone else's opinion would still be useful.
David's Isopon Bumper Filler is some pretty good stuff.
And I read that 3M Automix 05895 is pretty much the best you can get, although it's expensive and only available from the states as far as I can see.
So I'm gunna make a trip to my local Halfrauds tomorrow and get a couple of tubes of that David's one
Best body filler for plastic bumpers? - Bonney - 21-08-2019
The isopon stuff is great. I used it on an old motorcycle fairing I repaired a few years back and never cracked.
I also went a bit overkill and added a little fibreglass weave on the worst looking areas.
Have you not thought about plastic welding it, Pretty easy to do!
Best body filler for plastic bumpers? - sprinter2012 - 21-08-2019
Bonney The isopon stuff is great. I used it on an old motorcycle fairing I repaired a few years back and never cracked.
I also went a bit overkill and added a little fibreglass weave on the worst looking areas.
Have you not thought about plastic welding it, Pretty easy to do!
I've ended up getting a load of 3M stuff as they seem to do all the stuff I need, and as it's all the same brand I know nothing is going to react badly if I mix products etc.
3M 2 Part Epoxy Adhesive - Flexible filler/adhesive for external smoothing of cracks/dents
3M Automix Superfast Plastic Adhesive - Plastic in a tube, cures solid in about 5 minutes, and can then be drilled for rebuilding broken tabs etc.
3M Polyolefin Adhesion Promoter - To make stuff stick
3M Automix Instant Plastic Repair Patch - Basically a large patch made of 3M VHB tape to stick on the back of cracks, supports the crack to allow filling from the front.
Comes to a total of about £80, plus a few other bits like sand paper and cloths etc.
I did think about plastic welding it, but the 3M repair patch seemed like just an good of an option as it covers quite a big area around the crack and is more flexible than welded plastic.
Best body filler for plastic bumpers? - Bonney - 27-08-2019
The welded plastic would work as long as its a clean break and there is no debris to interfear with the weld. Also drill 2 small holes at the end of the crack to stop it spreading and flow over with the soldering iron to melt it.