Methyltetrahydrophthalic anhydride (MTHPA) is a chemical compound belonging to the family of cyclic anhydrides. It is primarily used as an epoxy curing agent, converting liquid epoxy resin into a solid, durable and thermoset material.

1. Curing Properties: MTHPA is an effective curing agent for epoxy resins, providing excellent heat and chemical resistance. It helps convert the liquid epoxy resin into a solid, durable, and thermoset material, making it suitable for various applications.
2. Low Viscosity: MTHPA typically has a lower viscosity compared to other curing agents, which makes it easier to handle and mix with epoxy resins, improving the processing and application characteristics.
3. Thermal Stability: The cured epoxy with MTHPA exhibits good thermal stability, making it suitable for applications where temperature resistance is essential.
4. Electrical Properties: The cured epoxy resins with MTHPA as the curing agent show good electrical properties.

Typical applications include epoxy coatings curing agent systems, potting compound curing agent formulations, electrical insulation casting and industrial epoxy laminates. This grade is supplied as a solvent-free epoxy curing agent, a solvent free epoxy curing agent and a 100% solid content epoxy curing agent with high purity as a high purity epoxy curing agent. It performs as a high-performance epoxy hardener and high performance epoxy curing agent with excellent adhesion as an excellent adhesion epoxy curing agent and high adhesion epoxy hardener, together with a long working time as an epoxy hardener with long working time and a long pot life epoxy curing agent profile. Offered as a 99% pure epoxy curing compound, 100% purity epoxy curing agent and low water content epoxy curing agent, it complies with RoHS and REACH as a rohs reach compliant epoxy hardener and emission compliant epoxy curing agent. A light yellow transparent liquid epoxy hardener for solvent free potting system, chemical resistant epoxy hardener and general industrial epoxy curing agent service, it is the mthpa epoxy curing agent 99% purity grade of 99% epoxy curing agent, solvent free epoxy hardener, 100% solid epoxy hardener, solvent free curing agent and yellowish transparent liquid epoxy hardener.