How to make mold with silicone rubber

Silicone rubber is specially used for mold manufacturing because it has many advantages such as odorless, non-toxic, tear resistance, high resistance, etc. It is an ideal material for manufacturing various small and large-sized object molds to extreme temperatures, high simulation accuracy, texture Features such as clear lines and long service life.

1. Prepare and process the original model.

If the model is smooth and flawless, then we can definitely make a perfect mold. However, if the original model has many weaknesses, it is difficult to make a good mold. What is important now is the quality of the silicone.

2. Fasten the frame model.

The joints of the frame must be sealed to prevent silicone leakage. Then, fix the model in the framework.

3. Metering and mixing.

Silicone can meet all your needs. For condensed silicone rubber, the mixing ratio of the two-part siloxane material is generally 100:2 or 100:3. An electronic scale should be used to fully stir the mixture for measurement.

4. Casting mixture

Slowly inject a third of the mold-making silicone into the frame to ensure that the silicone seeps into every corner. After that, pour the remaining silicone.

5. Demoulding.

Take out the model when the mold made of silicone is completely cured (curing time: 4h~6h). Finally, it is necessary to clean and trim the completed mold. At present, the operation has been completed. It is best to put it into production after 24 hours, and keep it in a ventilated, cool and dry place.