By JeppeJJeppeJ - 9/2/2013 11:13:40 PM
Im casting a magazine for a paintball pistol using a two part mold made with CS2 silicone rubber and Fast Cast Polyurethane Casting Resin. The problem is that fast cast isn´t very strong. These magazines needs to be strong enough to be dropped down on a concrete floor. I have tried that with the fast cast mags and they just shattered.
So what is the strongest casting resin? And what about mixing in some aluminium or graphite powder, will that make it stronger? |
By Brian_s - 9/5/2013 12:34:26 AM
I made a 16mm diameter x 300mm rod from clear epoxy casting resin as a test. It bounces when dropped and is slightly flexible. I also used it for casting some 28mm soldiers which were very strong where as the fast cast PU resin was very brittle. I would rather not say where I got the resin from as it may be unfair to Easy Composites, unless Warren says I can, as they have nothing suitable.
Brian.
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