Scoutleader
Active Hunter
Is there a "homemade" or "poor mans"release agent I can use to make molds of plastic parts in plaster of paris?
release agent
- Thread starter Scoutleader
- Start date
tubachris85x
Well-Known Hunter
Well according to the thurston james book of mold making and casting, dosnt say exactly for making a plaster mold from plastic, but casting in materials of polyurethane plastics, you can use lacquer, PVA, talc, and wax. Hope this helps.
-tubachris
-tubachris
Scoutleader
Active Hunter
Yes it does
Thank you
Thank you
I would use vaseline, I have made many molds from plaster and used it without any problems.
I make the plaster mold, then coat the inside with a thinned down layer of plaster to fill in any bubble holes, then lightly apply the vasoline, and never had any thing stick when making the cast.
Vaseline is in the same catagory as duct tape, it has thousands of uses.
I make the plaster mold, then coat the inside with a thinned down layer of plaster to fill in any bubble holes, then lightly apply the vasoline, and never had any thing stick when making the cast.
Vaseline is in the same catagory as duct tape, it has thousands of uses.
General Grievous
Hunter
I've used Vaseline as mold release and also used PAM nonstick spray.
Depends on what your doing. Plaster doesn't really stick to some plastics so you might not even need it but better to be safe than sorry.
hope this helps.
Wayne
Depends on what your doing. Plaster doesn't really stick to some plastics so you might not even need it but better to be safe than sorry.
hope this helps.
Wayne
Fetthunter
Well-Known Hunter
Vaseline will work on plaster.
I use SmoothOn's mold release spray with my Urethane/Silicone work.
Mike, are you molding mini helmets for those slides?
I use SmoothOn's mold release spray with my Urethane/Silicone work.
Mike, are you molding mini helmets for those slides?
