JD A-1 catalyst is one of the most active amine blowing catalysts available. It consists of 70% bis (2-Dimethylaminoethyl)ether diluted with 30% dipropylene glycol for ease and accuracy of metering. Although JD A-1 catalyzes both the blowing and gelling reactions, its unique emphasis on the isocyanate reaction has established it as the industry standard for all types of polyurethane systems where efficient catalysis of the blowing reaction is required.