logo
Home >

Latest company case about Shenzhen Hanast New Material co.,LTD Certifications

How to solve the problem of expansion of industrial-grade silicone molds after heating?

2026-07-01

Latest company case about How to solve the problem of expansion of industrial-grade silicone molds after heating?

Industrial-grade mold silicone is primarily used for mold making in industrial construction. Due to its ease of use, it has gradually replaced traditional iron and plastic molds.

Currently, industrial-grade mold silicone for mold making on the market is mainly available in milky white and semi-transparent varieties. Parameters such as hardness and curing time can be adjusted arbitrarily.

Some customers have reported encountering silicone expansion issues when using industrial-grade mold silicone. The causes and solutions for this problem are as follows:

  1. Hardness is one of the factors affecting silicone expansion. Industrial-grade mold silicone should not be too soft. When making molds, it's best to choose silicone with slightly higher hardness. For example, when making flat molds, a slightly harder silicone is preferable. Silicone that is too soft is prone to expansion.
  2. During the silicone molding process, applying fiberglass or gauze can harden the exterior of the industrial-grade mold silicone to prevent expansion.
  3. When using silicone molds to make larger products, rotate the use of the silicone mold and allow it sufficient rest time. Prolonged use will reduce the lifespan of industrial-grade mold silicone.
  4. When making products from resin or other materials, do not allow the product to remain in the mold for too long.
  5. After the silicone mold is made, it is best to let it rest for 12 hours before using it in production.

By paying a little attention to the above five points during production operations, the problem of expansion of industrial-grade mold silicone can be solved.