repairing cracked plastic...
 

I have a hard body that has cracked twice in same spot.... I am looking for the best way to repair and hopefully make it as strong as it was before..... JB weld isnt cutting it

I use Quiksteel Epoxy on my hard bodies. Reinforced with an additional styrene tab(s) across the crack behind it. Clamp it down and let it cure!


They sell it at Ace Hardware and of course automotive shops...

shoe goo will work too"thumbsup"

Drill a hole in the end of the crack, this will keep if from spereading further. Then take some Styrene glue, spread the crack a little apply to each side and squeeze the crack back together. To make it super strong back the crack with styrene or ABS plastic and use tha same glue to the body. Sand and fill the crack with white Tamiya putty or Automotive Glazing putty. Repaint

I'd like to repair without having to repaint now... so... I have some shoe goo, and I have jb welded it again for the 2nd time, but I thin I will reinforce and maybe shoegoo some styrene to the back... or should i try using some quick steel with reinforcment

Get a tube of Weld-on 16:

IPS Weld-On 16 Cement: TAP Plastics

It works on a variety of plastics, it's solvent based so it melts the plastic a little to make the joint. Epoxy and Shoe-Goo don't bond as well to plastic.

thanks, I might have to pick some of that up

I wouldn't use something that's gonna melt the body. I would shoe goo a reinforcement to the back of it and once it dries,shoe goo over the reinforcement and about 1/2 inch on all sides to further strengthen the repair.

Or you could take it to a 1:1 body shop and see if they can plastic weld it back together for you.

yeah get some plastic weld they call it....tenex7R or plastruct, it will weld/melt the crack back together as if it wasn't cracked....just a bit of body work maybe might be needed later on when you get chance for paint and such....just a drop is needed to work, after applying it just work the crack open a bit then hold it closed....then some .20" to back it up and your good to go "thumbsup" ..........bob

....

fiberglass it, works on lexan bodies to, sticks to the paint just fine.

if you dont have a plastic welder, a soldering iron works pretty good. Ive done it several times and it works pretty good, but i'm cheap and am a bodywork guy so am pretty comfortable taking that risk

i use this
it seems to work rather well
http://www.permatex.com/products/Aut...astic_Weld.htm