Methyltrimethoxysilane is a colorless, low-viscosity liquid, regarded as trifunctional since all three alkoxy groups are able to participate in this reaction. Additionally it contains a methyl group that adds organic character to the products. It is mainly used as the crosslinking agent of room temperature vulcanized silicone rubber, as well as the glass fiber surface treatment agent and reinforced plastic laminate treatment agent, in order to improve the mechanical strength of products, heat resistance, moisture resistance.

甲基三甲氧基硅烷是无色的低粘度液体，因为所有三个烷氧基都能够参与该反应，所以被认为是三官能的。此外，它还含有一个甲基，为产品增加了有机特性。它主要用作室温硫化硅橡胶的交联剂，以及玻璃纤维表面处理剂和增强塑料层压处理剂，以提高产品的机械强度，耐热性，耐湿性。