What is foaming process

Automatic foaming is produced using a one-step foaming method, which involves mixing and stirring polyether polyols (PPG), polymer polyols (POP), toluene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), water and other additives, catalysts, and other processes in a short period of time (7-12 seconds), The CO2 released from the reaction of water and isocyanate to generate urea is the source of foaming gas. This method is simple in process and is currently the most commonly used method for producing polyurethane sponges.