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Curing Agents

The mainstay product IHARACUAMINE-MT (MBOCA) is a polyurethane curing agent with a wide range of applications. IHARACUAMINE-MT can be found in such molded products as rollers in the industrial equipment field; waterproofing agents and flooring materials in the civil engineering industry; and tennis courts and running tracks in sporting facilities such as athletics stadiums. Beginning with the U.S. and Europe, Kumiai Chemical is a major manufacturer and global supplier of curing agents.

Kumiai Chemical develops new amine-based curing agents. With the motto: “Better, Less Expensive, and Easier on the Environment,” we constantly strive to satisfy our clients.
Curing Agents
Chemical Name Product Name
Methylenebis (2-chloroaniline) IHARACUAMINE-MT
Trimethylenebis (4-aminobenzoate) CUA-4
Methylenebis (2-chloroaniline) + Solvent IHARACUAMINE-M SOLVENT
Methylenebis (2-ethyl-6-methylaniline) CUREHARD-MED
Polytetramethylene oxide Di-p-aminobenzoate ELASMER-1000
Polyurea Elastmer System POREA R SERIES
1.5-Naphthalene diisocyanate IHARA ND
n-Buthyl benzylphthalate BBPI


Polyurethane curing agent: An agent that contributes to the formation of urethane and urea through a chemical reaction process
Urethane: A compound produced by the condensation of an isocyanate group and an alcohol group
Urea: A compound produced by the addition reaction of an isocyanate group and an amine group