Zsolt Paul
10-29-2012, 12:20 AM
Hey all! I have a lot of experience working with epoxy resins, but not so much with making and casting into silicone or rubber molds. We don't ever duplicate existing "positives". I would like to create a 3D negative and cast (and remove) the positive directly into it. I would like to bypass the mold making step if possible. My questions are:
1: Is it possible to cast epoxy resin directly into wood and then remove it with the right kind of release agent? We had tried, and had good success with paste wax, but would rather avoid using wax, as it can contaminate adhering/coating afterwards).
2: Alternatively, is there a rigid material that I could carve/laser into to use as mold, then cast resin that would easily release from it (without the use of wax)?
As you can see, I'd like to bypass the additional step of making a silicone or rubber mold, since we have the capability to carve the negative. We don't ever take existing "positives" that we need to copy via traditional mold making/duplicating.
Thanks much!
1: Is it possible to cast epoxy resin directly into wood and then remove it with the right kind of release agent? We had tried, and had good success with paste wax, but would rather avoid using wax, as it can contaminate adhering/coating afterwards).
2: Alternatively, is there a rigid material that I could carve/laser into to use as mold, then cast resin that would easily release from it (without the use of wax)?
As you can see, I'd like to bypass the additional step of making a silicone or rubber mold, since we have the capability to carve the negative. We don't ever take existing "positives" that we need to copy via traditional mold making/duplicating.
Thanks much!