How to fix split mp5 fullstock
 

http://members.shaw.ca/ksurminski/stock%20001.jpg
As you can see, the stock started splitting along the seam. This creates a wobbly stock when its on the gun. I tried to fix this by clamping and using a heat gun to heat up the plastic, but that actually just made the split bigger. Anyone know of a way to fix this?

I'd just try useing some crazy glue or fyber glass it together.

A full coat of fiberglass is definately the best and most durable solution, but it's a long and quite tough to do it correctly. Applying the cloth and resin correctly, then a long run of sanding, but then you'll have a smooth and durable surface, easy to paint.

Crazy Glue or QuckTite will do the job just fine, or epoxy.

Epoxy will harden up to the point of being extremely hard to sand smooth if your not using a grinding disk :rolleyes: but it'll make one strong bond.

I think your onto something with the heating though - plastic cement (The clear stuff that smells like alcohol that people use to assemble plastic models).
It essentially is plastic's equivalent to welding as it melts the plastic that it comes in contact with allowing you to clamp the two sides of the crack together so that they can fuse while drying. The process is purely chemical so the heat generated will definitely not be enough to warp the plastic.

"Games Workshop" has a really good one for putting together the warhammer type armies.

Hope that helped!

Cheers!

I'm sure he could get away without using the cloth

If you use the resin without the cloth, a lot of the strength will not be there. That's the point of composites. It may look a little neater without patches of clot on the stock, but it will be stronger, much stronder with the cloth.

Could just switch out for another stock...

I use a product called "PROWELD" available at most hobby shops. You clamp the plastic parts together then apply a little PROWELD to the joint. Capillary action carries it though the joint and actually chemically melts the plastic together. Dries very fast also but leave it clamped for an hour to be sure.

Thanks everyone for the ideas.

I just applied some jb weld to it. It was the only thing i had around the house. I'll let you know how it turns out.

Seems to be holding strong, no more stock wobble. Now i just have to sand it smooth and paint it.