From: Bathsheba Grossman (firstname.lastname@example.org)
Date: Wed Dec 10 2003 - 23:44:44 EET
On Wed, 10 Dec 2003, Jon Broome wrote:
> We are new to silicon molding and are having trouble with the silicon not
> curing uniformly (and staying gooey) where the silicon contacts the plastic
> parts. Has anyone solved this? Any assistance or directions to assistance
> wold be greatly appreciated.
Well, I'm far from the most knowledgeable person here, but nobody else
seems to be speaking up...it sounds like the material of your master
is inhibiting the cure of the mold.
Your options are pretty much: use a different master material, use a
different mold material, or put a barrier between them. Probably #1
is out. For #2, you could try different rubbers. For #3, if
tolerance is not too tight you could try shellacking the part or
something like that.
For more advice, you'd probably have to reveal the material of your
-- Bathsheba Grossman phone (831)429-8224, fax (831)460-1242 Sculpting geometry bathsheba.com Solidscape prototyping protoshape.com Protein crystals crystalprotein.com
This archive was generated by hypermail 2.1.7 : Sat Jan 17 2004 - 15:18:26 EET