Epoxy granite vs. cement based concrete

Developed by Swiss machinery manufacturers in the 1980s, composite bases have limited use in standard machinery, but are increasingly used for special machine tools requiring high precision and other special mechanical uses. In high-speed machining, polymer concrete has become the latest technology for all non-moving parts of machine structures, such as beds, beams and columns.

While the original formulation of the polymer composite came from the concrete filling of the machine tool base and included concrete, more recent formulations mainly consist of quartz or granite materials in the epoxy resin composite. As a result, the name was changed from polymer concrete to epoxy granite.

Due to its hygroscopicity, the internal structure of cement-based concrete will change over time, and it does not have dimensional stability, so it cannot be used for the main structure of precision machine tools, and can only provide a reasonable and stable foundation for non-self-supporting super-large machines.