Explanation for the operation details of silicone reproduction
In the process of rolling over liquid silicone mold rubber has many operation details that need to be notice, this tutorials detailed this process for silicone rolling over.
1.Heap rolling over oil sludge in slightly larger area as shown in the following figure on the blocks, leaving feed and air flow with stick or other small things like cylindrical, then pierce some hole with oil written to protect mold from displacement.
2.The feeding inlet flow funnel should be opened large，making it convenient to inject polyurethane resin.
3.Spray a layer of release agent on the surface of the built frame mold to keep the silicone rubber from sticking the modes.
4.Mix the silicone by ratio 100:2, remember to stir the silicone rubber and curing agent evenly, or it will cause the phenomenon of not cure or not completely cure.
5.Start pouring over the model, you may pour slowly if no vacuum machine available to reduce the bubble existing, bubbles on surface can be poked with toothpick.
6.After the male mold curing, made the reverse side of the model according to the above steps, spray a layer of Petroleum jelly mold release agent on male mold to prevent from sticking together.
7.Place the handled silicone in a stable environment to let it curing naturally, generally 6-8 hours reach the status of initial curing and 12 hours totally curing, to ensure that the silicone mold keeps the shape, recommend demolding after 24 hours and put into use.