What is the process of polyurethane foaming?

Place polyether or polyester polyol (white material) and polyisocyanate (black material), water, catalyst, surface Raw materials such as active agents, foaming agents, and other additives are added in one step, mixed under high-speed stirring, and then foamed. One-step foaming process is a commonly used process. There is also the manual foaming method, which is the…