Diaminodiphenylmethane (RECOMMENDED: ONLY Removes epoxy, but NOT PPD products from shopping list)

Diaminodiphenylmethane is a chemical used to prevent oxidation and ozone damage in rubber products and as a hardener for epoxy resins. It is a cold-curing hardener that does not require heat or ultraviolet radiation to harder on set the resin.

Patients who are allergic to diaminodiphenylmethane are most likely exposed to the cause of their allergy at work. The most common sources of problems are rubber and plastic products and adhesives. Rubber or vinyl gloves approved of by the physicians should be worn at work. Certain personal and recreational products like those listed may also cause problems. Such patients may be allergic to the p-phenylenediamine, products that are present in most permanent and semipermanent hair dyes.

Workers primarily at risk are those in the aircraft, automobile and boat industries and those in polyvinylchloride film manufacturing, electronic and electrical industries, tool and die casting, and the construction trades. Non-occupation exposures include plastic jewelry, eyeglass frames, chamber pots, handbags, and vinyl gloves.