mold release....

[Cliff]

i have cast my first few mask and im noticing on my 2nd pull they are more difficult to pull then my first, is there something that will work as a mold release on the self at walmart. i dont really want to have to buy it online but if i do who has it cheap!! thanks for the help guys!!

[Infoamtek]

What is the mold made of and what are you casting with?

[Cliff]

mold is made of Ultra cal 30 and pulling mask latex

[Allen H]

You should not need a release at all for that. Make sure the cast id completely dry and you should be fine.

[Cliff]

thanks! i think maybe the 2nd time i had the latex to thin!! Hey Allen should have you new DVD showing up here in the next day or two. really looking forward to it. thanks again!

[Infoamtek]

Any mold release will inhibit the absorption of the liquid and keep the latex from getting any thicker than a very thin skin. Because any plaster is absorbent, there will always be a little pullback when demolding, especially if there is a lot of texture. It's normal.

[Cliff]

thank you guys

[DarkShado]

ALL molds need release agents, except for some silicone applications. Especially if they are not sealed.

Use steric acid. It is normally used as a release agent for GM foam latex. It is available from Alcone. It is cheap and works well for absorption casting.
www.alconeco.com

Derek B.

[Allen H]

No, they do not. Unless the thousand or so masks I have pulled from my plaster molds have been a fluke.

[DarkShado]

If you use a release agent, the molds and the pieces pulled from those molds will be a better quality and last longer, that is why they make it.
Does your piece have a white dust on the surface when you pull it? That white color is the surface of you mold.

Slush latex it more forgiving. It is great for first timers.

Try your technique in ANY with any other medium and your pieces will not look as good as the sculpture, if you can get them out. Also your molds life will be GREATLY decreased. Who wants to re-sculpt?

I rather pull a thousand pieces from one mold then one piece from a thousands molds.