Repair dually fenders

[nilsson]

Have anyone try to repair the dually fender?
My have some cracks, a small piece on the edge missing.
I don't know what kind of plastic it is?
Is it possible to repair with polyester and glass fiber? Or is it need to be plastic welded?
Maybe some company sell grp copys?

//nilsson

[whitneyj]

I have 1 to fix from a tire shop backing it into something. I plan on using fiberglass to fix it.

[kawi600]

If its plastic, you can try a plastic welder with the same type of filler material (scratch and sniff test works most of the time). sometimes a soldering iron on the lowest heat setting needed to melt the plastic can work the crack closed, but it will remain weaker than the rest of the part. This should be combined with another repair from behind for support.
There are plastic repair kits from vendors like SEM and dupont.. powder and liquid thats applied in layers sometimes with a mesh tape.
sometimes a patch from behind with fiberglass and resin works. depends how rigid the part is. IF the part is fiberglass this approach will probably work the best.
Ive repaired semi-flexible parts using fiberglass and hot glue applied with a spreader. bizarre but it works great. I think this one is the most likely to work in the long run. urethane seam sealer might work like this also if you have some on hand.
then theres the frankenstein mechanical repair with sheet metal and pop rivets. looks fugly but its pretty solid.

[nilsson]

Thanks.

Think i will test fiberglass and resin, and try to build up the edge of the fender.

Is new fenders expansive parts at dodge dealer?
Hard to find used one in good stand?


Have somone used this:
http://www.duallyfendersfiberglasstruck.com/#DODGE

//nilsson

[stubz616]

I grind part way through the plastic or whatever they're made of and take a piece of screen cut out of a household screen for a door or window and then lay down some two part epoxy for fiberglass repair on the damaged area then set the screen in the epoxy and spread over it with more epoxy with a plastic filler spreader. Let it set up over night and come back the next day and shape it close with 80 grit paper. Then a quick skim coat of regular body filler to take care of the 80 grit scratches and to finalize the shape. All the repairs I have done with dually fenders and plastic bumpers on newer cars using this method hold up very well over time and the cracks have never come back to haunt me. Just use a good two part epoxy such as 3M. You can also bridge gaps with the epoxy where chunks may be missing because the screen will hold the epoxy from sagging out.