Fixing cracked Plastic

shilmover

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I just picked up a game (Radikal Bikers... actually FullThrottle did :) ). The plastic cover of the handlebars is cracked where the screw holds it down in the back...

How can I fix that (more to strengthen it, than to make the cracks go away)? I have used JD Weld on metal, will it work on Platic too?
 
I just picked up a game (Radikal Bikers... actually FullThrottle did :) ). The plastic cover of the handlebars is cracked where the screw holds it down in the back...

How can I fix that (more to strengthen it, than to make the cracks go away)? I have used JD Weld on metal, will it work on Platic too?

Bump... No one? :(
 
I'm looking for some advice on a Sinistar Cockpit seat. Has a hole in the middle of it/cracked.

I was looking into bumper repair products for newer cars. Both seem to be made of plastic/fiberglass...
 
I would lean towards a gel version of cyanoacrylate, and cure it using an accelerator. Stop by your local hobby shop and see what they have, very common for rc trucks/planes/etc.
 
ca (cryanaccolate or whatever) is too brittle, it wont hold over time..

youll either want to use some sort of epoxy (jb welb, jb quik*, loctite 15 minuite epoxy)
* works just as well as the original but sets MUCH MUCH FASTER
If you do epoxy, make sure to sand the edges with 60 or 80 grit sandpaper to give the epoxy a better "foothold" to grab onto

OR spend the dough on a plastic welder and piece it back togther, redrill, grind, then paint it with something like flat black bumper paint(designed to stick to plastic and flex without cracking)
http://www.google.com/products/cata...ct=result&resnum=1&ved=0CBUQ8wIwAA#ps-sellers


i used to have access to a plastic welder but not anymore.. i miss it believe me...
 
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Thanks all.

I might just try JB Weld to start as I have some here. It will not hurt the plactic, correct?
 
There's a two-part epoxy around that is specifically for plastics. Wish I could remember a brand and such, but it's off the shelf stuff.
I've use it to repair/rebuild broken plastic gear teeth and it seems to bond and hold up strong.
 
ca (cryanaccolate or whatever) is too brittle, it wont hold over time..

youll either want to use some sort of epoxy (jb welb, jb quik*, loctite 15 minuite epoxy)
* works just as well as the original but sets MUCH MUCH FASTER
If you do epoxy, make sure to sand the edges with 60 or 80 grit sandpaper to give the epoxy a better "foothold" to grab onto

Actually most cyanoacrylate glues are a high elasticity adhesive, which bonds well to non-porous surfaces like plastics. Hence, why you don't need to sand parts before glueing.

Using an accelerator with most cyanoacrylate adhesives actually enhances the elasticity of most, along with allowing you to use the glue to fill small gaps where plastic may be missing. Hence why gel + accelerator is a very good choice.

That being said there is many different types of cyanoacrylate glues, it's not just super glue. Even check out methacrylate adhesives
 
Sears sells a product that is multi purpose (plastic is listed) - Goop I think the name is. ... hmmm I think that's the name anyway it's in the automotive section.
 
I'm waiting for the ghost of Billy Mays to come out screaming on that plastex site...

Billy-Mays-pointing.jpg
 
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