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Any repair tips for gun plastic

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DYNAGOD:

--- Quote from: Kremmit on November 22, 2004, 04:50:14 pm ---JB Weld has a product called JB Stik- it's an epoxy putty, you mash it up and mold it into shape.  It dries pretty darn hard, probably harder than the gun's original plastic.  The trick will be getting it to stick.. I wouldn't try to mold it into a thin piece like the existing shell, but just mash a bunch of it inside, so it contacts more surfaces.  Then, sand down the outside after it's dry.  Oh, and mabye melt some wax or something over parts you DON'T want it to stick to, so you can dissasemble it afterward.

Good luck!

--- End quote ---

i was wrong, not the stuff. i was thinking of this stuff we use in the machine shop to dimension impossible to check inside dimensions.
its like a bondo of sorts but it holds its shape to within a .001" or 2 .
but the activator/hardner for the stuff will clear out a room,kill a million brain cells and proboly melt through a plastic table..

rdagger:
I thought I might try casting the grip using a  product like Alumilite.  Does anyone have any experience casting and know if this would be strong enough?

DYNAGOD:

--- Quote from: rdagger on November 22, 2004, 05:43:53 pm ---I thought I might try casting the grip using a  product like Alumilite.  Does anyone have any experience casting and know if this would be strong enough?

--- End quote ---
you could proboly make a nice mold, but as rdagger stated, you may have issue getting it to bond..
dissimilar materials dont like to bond at a molecular level.

Kremmit:
My understanding is that alumalite's not really strong enough for this type of project.  Otherwise, everybody'd be making all kinds of parts out of it.  It's ok for solid stuff, but thin parts like those gun shells wouldn't hold up.  Same for the JB Stik for that matter.  Those shells are just too thin to be done with anything less than injection molding of the type done by Tom of Specialty Plastics fame.  I think a big gob of stuff smacked into the hole and sanded down is gonna be your only shot, whether you use Alumalite or JB Stik or some other stuff. 

rdagger:
I guess I could fill the hole with Bondo and sand it down.  Then I could dip the grips in some black flexible plastic dip coating (Dip & Grip).

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