When combined with conventional defoamer types, it accelerates bubble-break times and boosts efficiency. Two mechanisms are apparent: one group of antifoams (Antifoam A, Antifoam C and J673A) increases the specific yield of GFP by increasing the total amount of protein produced and secreted per cell, whilst the second (P2000 or SB2121) increases the total yield by increasing the density of the culture. Dow Corning antifoam B emulsion is a water-dilutable, 10-active silicone emulsion that is designed to control foam in aqueous systems with 5 gal capacity. It acts as a unique surfactant interacting with the foam-related surfactants and destabilizes the foam bubbles.
Unlike conventional mineral-oil and silicone defoamers, our FOAMSTAR® technology breaks down foam on a molecular level. It is based on a hyper-branched polymer with a 3-dimensional star-shaped structure, containing hydrophilic as well as hydrophobic elements. 1 Antifoam B emulsion does not affect the growth of bacteria. One of the outstanding innovations in the BASF defoamer portfolio is our award-winning FOAMSTAR® technology. Antifoam B emulsion is a silicone based antifoam. Our lineup ranges from products based on mineral oils or native oils, specialty-emulsions and organosilicone-based solutions to silicone-free and star-polymer defoamers. FOAMASTER®, FOAMSTAR® and EFKA® defoamers for water-based, solvent-based, and solvent-free formulationsįormulators rely on BASF defoamer technologies to meet the most demanding standards of excellence – such as those in automotive coatings.
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