cis-1,2,3,6-Tetrahydrophthalic anhydride(THPA)

Description:The molecular formula of tetrahydrophthalic anhydride is C8H8O3. Its main use is as a curing agent for epoxy resins， as a modifier for unsaturated polyester resins and alkyd resins， and as an important intermediate for the synthesis of pesticides and pharmaceuticals.

Characteristics:

1. High purity and light color

2. Low viscosity

3. Stable performance， low freezing point， long pot life

4. Low volatility

5. Good mutual solubility

Application:

1. Used as epoxy resin curing agent， used in plasticizers， alkyd resins， unsaturated polyester resins， used in the production of surfactants， wetting agents， emulsifiers， herbicides， plant growth inhibitors， pesticides ， fungicides， insect repellants， fiber treatment agents， lubricant additives， etc.

2. It is a new type of organic acid anhydride epoxy resin curing agent with excellent performance. It is used in alkyd resins and unsaturated resins to improve the adhesion， elasticity， gloss and water resistance of coatings. As a plasticizer， it can improve the cold resistance and heat resistance of PVC， and it is non-toxic.

General hints:  If the curing agent crystallizes， it can be heated to 40~80℃ to restore its original state without affecting its original performance.

Package:25 kg net weight.

Transportation and storage:

Avoid shine， rain and high temperature in transportation.

Store the products with dark sealed containers in dark， away from heat， ventilated and cool conditions， keep far away from fire. Shelf life 12 months at a maximum storage
temperature of 35℃.

If you use it exceed the shelf live， it need to retest the technical indicators， must be qualified before use.