The main reason for this problem is that you
do not handle the products or original molds well, then you should deal with the
original mold or products carefully before molding. Such as for the products
with a complicated pattern or a unsmoothed surface, you should polish and clean
the products after which it will be molded ,then spray the release agent.
Normally, the release agent can be Vaseline , detergent. liquid wax Etc. In practical
process, you can bush different release agent according to different material.
The second reason is that the operator pour
the silicone into the mold when the mixture is mixed evenly, then the finish
silicone mold will not cure and dry entirely.