Four Key Applications of Magnesium Oxide in Silica Gel: A Critical Performance Enhancer

Magnesium Oxide (MgO), a versatile inorganic material, plays an indispensable role in the silica gel industry. Here are its four core applications.

1. High-Efficiency Filler in Thermally Conductive Silicone

With a high thermal conductivity, MgO forms a continuous thermal network when filled into silicone, significantly improving heat transfer efficiency. Its excellent thermal stability also extends the service life of silicone at elevated temperatures, making it widely used in electronic heat dissipation and LED packaging.

2. Activator and Accelerator for Silicone Vulcanization

During vulcanization, MgO activates accelerators and speeds up cross-linking, shortening cure time, lowering cure temperature, and increasing cross-link density. This results in silicone products with a tighter structure and superior elasticity, effectively preventing incomplete cure and surface tackiness.
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