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Specialty Additives Update

October 2013

Airase® 4500 defoamer—a new organic oil-based defoamer

Airase 4500In response to the growing need for environmentally friendly defoamers, Air Products is announcing a new organic oil-based defoamer—Airase 4500 defoamer.

Airase 4500 defoamer is a proprietary organic oil defoamer designed to eliminate foam, pinholes and entrapped air in water-based applications without generating surface defects. It has low viscosity, is easy to handle and is suitable for a wide range of applications, including inks, overprint varnishes (OPV), adhesives, pigment grinds, coatings, and industrial and architectural paints.

Airase 4500 defoamer has excellent FDA and EU indirect food contact compliances, and all components are in the chemical inventory registry. It is non-mineral oil-based and has no toxicity. It does not contain VOC, added mineral oils, hazardous air pollutants (HAPs) or alkyl phenol ethoxylates (APEs). It is especially suitable for applications requiring US FDA 21CFR 175.105, 175.125(b), 175.300, and 176.170, 176.180, 176.200 and 176.210, as well as applications requiring food contact compliances.

The recommended use level is between 0.2% and 1% of the total formulation weight. Of course, the actual level depends on your requirement and the foaming characteristics of the particular resin system.

You can count on Air Products’ full line of defoamers to provide the correct balance between defoaming power and the compatibility and solubility of the defoamer in the system.


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