This product is a two-component solvent-free environmentally friendly epoxy casting resin. The main component is epoxy resin, and the curing agent is modified anhydride. The product is mainly suitable for indoor medium-voltage and high-voltage electrical insulation parts, such as: transformers, engines and high-voltage coils, supports, switch components, bushings, etc. The product is easy to use and suitable for traditional vacuum casting process and automatic pressure gel process. This product has excellent electrical, mechanical, anti-cracking properties, low curing shrinkage (can ensure the dimensional accuracy of the product), long operation time and other characteristics.