Methyl Tetra Hydro Phthalic Anhydride(MTHPA)

MTHPA is a thermosetting Epoxy curing agent, widely used in the industrial paints and also in the field of electronics and electricity applications. With following advantages:

  1. Long shelf time at room temperature .
  2. Low freezing points
  3. Low Volatilization
  4. Low toxicity.

MTHPA, as the curing agent, is widely used in electric machine, dry-type transformers, high voltage switches, mutual inductive equipments, horizontal output transformers, household appliance capacitors, power capacitors and resistance and the impregnating, casting and wrapping of integrated circuit.

Chemicals information:

CAS NO:26590-20-5

Formula: C9H10O3

Molecular weight: 166.17

 

Specifications:

Item Specifications
Appearance Color less or Slightly yellowish liquid
Anhydride Content 41.0% min
Volatile Content 1.0 % max
Viscosity(25C) mPa.S 30~60
Free Acid, % 1.0% max
Freezing points © -15C max

 

Applications:

  1.  Epoxy curing agents
  2. Solvent free paints
  3. Epoxy laminates
  4. Epoxy adhesives
  5. Encapsulation of semiconductor
  6. Dipping , lamination or filament of transformer, high voltage switch, conductor, capacitor, circuit board.