DEDDM is a liquid aromatic diamine containing of 3.3-diethyl

DEDDM is a liquid aromatic diamine containing of 3.3-diethyl-4, 4-diaminodiphenylmethane（95%）. It can be used as a heat-resistant curing agent of epoxy resin adhesive. It has the advantages of low exothermic temperature, low thermal expansion coefficient and low shrinkage rate when mixed with epoxy resin. As a chain extender of polyurethane, it has excellent compatibility with TDI and MDI prepolymers and fast reaction speed, completely replacing MOCA as the chain extender of polyurethane elastomer.

With the low toxicity and high purity, it is mainly used in high performance aerospace equipment structural adhesives,widely used in adhesives, laminate sheets, high powered paintings and storage tank lining paintings. It has the advantages of good heat-resistance, high activity and long service life.