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Specialty Additives Update

August 2011
Fighting Foam in Graphic Arts . . .

Fighting Foam in Graphic ArtsMany surfactants typically used for wetting in water-based graphic arts formulations tend to promote and stabilize foam. Processing conditions can also contribute to foam problems—air may become entrained in the formulation and cause problems such as reduced grind efficiency, handling hassles, and surface defects, which can potentially detract from the performance of the finished product.

At Air Products, we offer a diverse range of defoamers to meet your formulating needs. For effective knockdown foam control and performance longevity, we offer our organic-based defoamers, such as Surfynol® DF70, Surfynol DF75 and Surfynol DF220. In the toughest situations, where foam control is critical and surface defects cannot be tolerated, we offer our Surfynol DF66 and Surfynol DF695 silicone-based defoamers specifically designed for aqueous ink systems. Our molecular defoamers, such as Surfynol DF110D or 110L, Surfynol MD20 and Surfynol® AD01, offer defect-free foam control in both fountain solutions and printing ink applications. Molecular defoamers are an excellent formulating alternative for those situations where silicone and organic defoamers either can’t be used or aren’t effective.

A broad defoamer product portfolio based on three distinct product types—organic, silicone and molecular—provides you with a wide range of formulating options. No matter what your formulating needs, Air Products offers you innovative and flexible solutions to the challenges you face.

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