Casting Release Agent?

[klutz_100]

Originally Posted by the dog

You may want to use talc in the mold to help release the little air bubbles (breaks the surface tension).

Thanks, I'll try that next. Doesn't that "show" in the cast part though? i.e. as if dust had got into the mold?

Originally Posted by the dog

I've never found a good manufactured product out there.

me niether

Originally Posted by MPWR

Looks like they came out great

Thanks again for the ideas and help - much appreciated

[flyonthewall]

I use Vaseline for my two part molds, works very well.

[slownlow32tl]

I have used lip balm like (blistex) on a two part plaster mold before and it worked great. Goes on alot thinner than vaseline.

[the dog]

[quote=klutz_100]Thanks, I'll try that next. Doesn't that "show" in the cast part though? i.e. as if dust had got into the mold?

Nope, just blow out the excess. The talc will become part of the part.

[the dog]

That's why I add motor oil, to thin it out a little. Vaseline can also dry out on it's own, and not work.

Originally Posted by slownlow32tl

I have used lip balm like (blistex) on a two part plaster mold before and it worked great. Goes on alot thinner than vaseline.

[D_LaMz]

Originally Posted by flyonthewall

I use Vaseline for my two part molds, works very well.

Originally Posted by slownlow32tl

I have used lip balm like (blistex) on a two part plaster mold before and it worked great. Goes on alot thinner than vaseline.

Wait, wait, wait.........you mean I can use this as a release agent?

[the dog]

May work, but I'd test it first on a side project.

Originally Posted by D_LaMz

Wait, wait, wait.........you mean I can use this as a release agent?