Forty years old man Re-create new business ：Study to become a sponge foamer FAQ2：
May I ask which foam master can explain:How to get started? For example, a customer A who purchases sponges came to the office and asked to produce 21 density foam. After negotiating the order price and quantity, and receiving a 30% deposit. I found that the corresponding water content is 4.6 parts based on the 21 density Index table, so the question arises:
* What is the difference between using 4.6 parts of water single and using 3.6 parts of water+1*9 parts of MC to produce sponges in the case of OH56 100PPH?
* Why do we still use MC when we can produce sponges using only water?* Why add 9 parts of MC for every 1 PPH of water reduction?
Chemist (Senior Foamer) Consultant about PU Foam Production. 44 years of experience in PU
9 个月Because for every 1 part of water you add you should use approximately 10 parts of TDI; Furthermore, if you replace that part with MeCl2 you decrease the exothermic.