overview: niax a-501 is bis(dimethylaminoethyl) ether also known as catalyst a1, catalyst a-1, bdmaee. 70% bis(dimethylaminoethyl) ether in dipropylene glycol solution, strong foaming catalyst, the domestic industry usually refers to it as catalyst a-1 or a1. a1 catalyst is mainly used in the production of flexible polyether-based polyurethane foam, but also in rigid foam for...