Methyl Tetrahydrophthalic Anhydride MTHPA CAS 19438-64-3

Methyl Tetrahydrophthalic Anhydride (MTHPA) is a widely used anhydride curing agent for epoxy resins. With excellent thermal stability, electrical insulation, and mechanical properties, it is ideal for producing high-performance thermosetting materials. MTHPA is employed in electronics, coatings, adhesives, and composite materials.

– Colorless to slight yellow liquid

– It has high purity and light color and luster. It can be directly adjusted into all kinds of colorful epoxy resin products.
– It has low viscosity. It has the characteristics like: good casting, embedment and impregnation technology. It can improve the performance of curing material and the affinity of lamination and basic material.
– It has the characteristics like: stable performance, low freezing point and long using life. It can be stored for a long time at room temperature and easy for pipeline transportation. It is suitable for production automation and severe cold region.
– It has small volatility and low toxicity, only 1/20 – 1/40 toxicity of the amine curing agent. Its irritation to human eyes and skin is small.
-It has good dissolubility. This product can dissoluble with all epoxy resins. The mixing viscosity is low, meanwhile, has low pyrogenic effect and shrinkage during the heated curing process.

Specification:

Application:

Electronics: Used as a curing agent for insulating materials in electrical components such as transformers and motors.

Adhesives and Sealants: Ensures strong bonding and durable performance under extreme conditions.

Coatings: Provides enhanced chemical resistance and adhesion properties.

Composite Materials: Ideal for fiber-reinforced plastics in aerospace, automotive, and industrial applications.

Usage Guidelines:

Storage Requirements: Store in a cool, dry place, tightly sealed to avoid exposure to moisture and air, which can degrade product quality.

Mixing Ratio: Typically mixed with epoxy resins in specific ratios recommended by manufacturers.

Processing Conditions: Use at elevated temperatures to ensure optimal curing and performance.

Safety Measures: Handle in a well-ventilated area with appropriate protective gear to avoid exposure.

Package:

220kg/drum 17.6mt/20’FCL