MDA: Essential Co-reactant for Epoxy Resins


MDA is found as pale-yellow flaky crystals at room temperature. It is only slightly soluble in water but dissolves well in alcohols and other organic solvents.

As a co-reactant of Epoxy resin, it reacts with Epoxy resin to allow the product having the following excellent properties:

  • Produce no VOCs as hardening.
  • Good dimensional stability because less shrinkage as reacting. High hardness, high flexibility, excellent abrasion resistance.
  • Great thermostability, solvent resistance, and insulating properties
  • Strong adhesion with metal, wood, cement, ceramic, glass, etc..
  • High storage stability

4,4′-Methylenedianiline (MDA) is an organic compound with the formula CH2(C6H4NH2)2. It is a colourless or white solid. It is produced on an industrial scale as a precursor to polyurethanes.

44 methylenedianiline


  • Used as hardeners in epoxy resins and adhesives, as well as in the production of high-performance polymers.
  • It is hydrogenated to give 4,4-diaminodicyclohexylmethane, which is also used in polymer chemistry.