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About product and suppliers:
        Alibaba.com offers 8,249 defoamer chemical products. About 43% of these are paper chemicals, 42% are petroleum additives, and 41% are surfactants. 

A wide variety of defoamer chemical options are available to you, 

There are 8,085 defoamer chemical suppliers, mainly located in Asia. The top supplying countries or regions are United States, China, and India, which supply 1%, 99%, and 1% of defoamer chemical respectively. 

Defoamer chemical products are most popular in Vietnam, United Kingdom, and United States.