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How to Manufacture Fondant Silicone Mold

Fondant mold food-grade silicone introduction:
Fondant mold food-grade silicone is an addition-type silicone, also known as two-component room temperature vulcanization silicone. Silicone A, B components are fluid colloid, in which B component contains platinum catalyst or other additives. A and B components in accordance with the ratio of 1:1 mixture can be heated or room temperature vulcanization.

Fondant mold food-grade silicone features:
  • Low viscosity, easy priming, good liquidity, no subject to product thickness limit, room temperature vulcanization, easy to operate;
  • Environmentally friendly, non-toxic, tasteless, high transparent, non-yellowing, FDA food certification;
  • Low line shrinkage (≤0.1%), not easy to deformation, high accuracy;
  • Soft and good elasticity, high tensile and tear strength, high frequency of turning mold;
  • With excellent chemical resistance, high and low temperature resistances, high tear resistance, good aging resistance, and good soft release.

Fondant mold food-grade silicone applications:
Fondant mold food-grade silicone mainly used for complex mold of food, such as chocolate mold, candy mold and cake mold. It can also be used for metal crafts, alloy vehicle, medical equipment, precision mold manufacturing and carbon fiber composite materials, ceramic technology, printing, the human body, household appliances potting, lighting fixtures, silicone ice, and other silicone products.

Fondant silicone mold manufacturing process:
  • Mixing: A component (base rubber) and B component (vulcanization agent) by weight ratio of 10:1 or 1:1 mixing, mixing can be manual or use equipment.
  • Defoaming: The mixed glue should be defoamed before filling the mold. A small amount of use can be carried out in a vacuum dryer, in the vacuum, the size of the compound will foam and the volume will increase 4 to 5 times. Therefore, volume of the container for defoaming should be 4 to 5 times larger than Size of compound, a few minutes later the gel volume returned to normal and the defoaming step was completed when no bubbles were released from the surface (about 10 minutes).
  • Surface treatment: Rubber contacting the surface of the mold or the surface of the material can be encapsulated with liquid paraffin as a release agent.
  • Vulcanization and demolding: The defoamed compound placed in 120±5℃ bake 10-30 minutes vulcanization, 60~70℃ bake 30 to 60 minutes vulcanization, room temperature vulcanization time is 3-6 hours, vulcanization temperature and the time may be determined according to the process conditions.

Fondant mold food grade silicone precautions:
  • The operation of food grade mold silicone, A glue and B glue must be strictly in accordance with 1:1 in mixture;
  • Never smoke when processing addition-type silicone, in order to avoid contact with condensed silicone rubber vulcanizing agent, may cause the compound is not sulfide amines, sulfur, phosphorus compounds and some metal salts, to prevent silicone "poisoning", the surface is not dry;
  • It should separate with the containers that used condensation-type silicone, use the unused room temperature silicone tools to operate this silicone. Do not contacts with any other condensation-type silicone, otherwise it will cause vulcanization agent (B glue) poisoning, resulting in silicone will not be vulcanized.
Fondant silicone mold

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