Antifoam agent S099,P498,S639B are used for construction additives like water reducer,air entraining agent, concrete admixtures.

　　The air entraining agent is added in the production with a lot of bubbles which will lead to the polycarboxylate superplasticizer produce bubbles in the production. Then, it is added into concrete to produce serious foams after strong stirring, which is difficult to eliminate and affects the density of the concrete and the quality. in order to improve the concrete performance, usually add defoamers for concrete production.

　　Silicon emulsion antifoam S099 it is one highly effective and versatile foam control agent. Due to the use of various types of silicone active matter and silicone resin, the product has high efficient antifoam and foam-suppressing performance, good foam control performance can be achieved by small dosage.

　　Defoamer and antifoaming agent P498 it offer quick bubble break, excellent foam suppressing performance. It has good compatibility with application system (like cement water-reducing agent, construction materials etc)

　　Antifoam solution S639B it is composed of polysiloxane, modified polysiloxane, silica, dispersing agent and stabilizing agent etc, and it offer quick bubble break performance, excellent persistency ,widely used in construction additives like water reducer,air entraining agent, concrete admixtures.