Preventing or controlling foam is essential when working with aqueous solutions or adhesives, as it could affect the appearance of the product when dried, the coating weight, and the flow speed of the liquid, among other factors. Both defoamers and antifoams attempt to mitigate the problems that foam can cause.

Defoamers vs. Antifoams

While the end goal of both defoamers and antifoams is an absence of foam, the difference between the two products is the timing. Defoamers control existing foam, while antifoams prevent the formation of foam. Converters may add defoamers if they incur issues with the formation of bubbles during their manufacturing process. Manufacturers may add antifoam to their formulas if they anticipate a tendency for foam to form during use.

Defoamer & Antifoam Applications

Defoamers and antifoams are ideal chemical solutions for addressing unwanted foam in a wide range of industries and applications. However, the right product for your needs depends entirely on your application. AMS can guide you to selecting the appropriate defoamer for your specific application.

Kraft mills, sulfite mills, recycling mills, and other pulping operations produce byproducts that result in foaming. Foam causes inefficient washing, increased bleaching costs, slower production rates, lower product quality, and maintenance issues. AMS manufactures an array of pulp and paper defoamers ranging from silicone antifoams for pulp mills to water-based defoamers for paper machines.

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Air entrapment and foaming are common in water treatment applications. Without using defoamers or antifoams in water treatment, processes can slow or stop when water is not allowed to pass through filtration systems.

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Mixing and grinding during the production or filling of paints, inks, coatings, and adhesives create foam. Defoamers for paints, inks, coatings, and adhesives mitigate the impacts on production time and output that result from the formation of bubbles.

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In water treatment, both mechanical agitation and chemical reactions produce foam, which can inhibit the purification process. Both defoamers and antifoams reduce the formation and eliminate any instances of foam.

When rainwater filters through landfill waste, it creates leachate. The biochemical reactions from the filling and sticking process result in a tremendous amount of foam. The leachate cannot be emitted into water treatment channels without defoaming agents that allow the fluid to pass through membrane filters.

Defoamers for ethanol production are primarily used during the wet milling process. In wet milling, grain soaks in a slurry before being ground and separated. Both defoamers and antifoams are critical to the wet milling process. The bubbles that form during fermentation take up volume in the vessel for the ethanol, and can even cause displacement and product loss.

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Metalworking fluids cool and lubricate metals during fabrication. Defoamers ensure that the fluids remain stable and effective.

The chemical industry is continuously innovating and creating sustainable products that use less essential resources, like energy and water, while complying with increased environmental and safety regulations. Defoamers and antifoams play an important role in chemical manufacturing. They control and regulate foam in many processes, including distillation, synthesis, transfer, and filtration, and are designed to be efficient in high-acid or alkaline environments.

Foam often develops as part of poultry and meat processing, dairy and beverage production, and produce washing, as well as during grain processing and fermentation. Defoamers and antifoams for food processing and agribusiness applications can help mitigate and protect against excessive foam. This ensures product quality while optimizing process efficiency.

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Defoamer & Antifoam Solutions From AMS

Choosing the right defoamer or antifoam requires insight into the most effective chemistry for the application. AMS can help address your requirements with one or more of our products. We offer both food-grade defoamers and tech-grade defoamers. These may take the form of silicone antifoams, non-silicone defoamers, or powdered defoamers.

  • Silicone Antifoams

    At AMS, we supply food-grade defoamers as well as tech-grade and agricultural antifoams. These products are available in non-aqueous, water-based, and specialty varieties with options for viscosities ranging from super-concentrated to ready-to-use.

    Water-Based Silicone Antifoam Emulsions


    • TRANS-5A
    • TRANS-10A
    • TRANS-20A
    • TRANS-30K
    • TRANS-278K


    • TRANS-2910B
    • AE-10-TG
    • AE-30-TG
    • TRANS-290
    • TRANS-2994
    • AFC-2


    • TRANS-10A
    • TRANS-290DX
    • TRANS-2937AG

    Non-Aqueous Silicone Antifoam Compounds


    • TRANS-100K
    • TRANS-100PK
    • TRANS-1000


    • TRANS-100D
    • AF-100-TG

    Specialty Silicone Antifoams

    • TRANS-2977
    • TRANS-296
  • Non-Silicone Defoamers

    The products in this defoamer category often incorporate surfactants for enhanced efficacy and the ability to disperse in foaming water. Non-silicone defoamers can be water-, oil-, or surfactant-based, as well as esters or polymers.



    • TRANS-227K
    • TRANS-274
    • TRANS-4062


    • TRANS-7560
    • TRANS-7565
    • TRANS-7664
    • TRANS-7665C

    Mineral Oil-Based


    • TRANS-4031
    • PP-18-HS-FGK

    Tech-GradeMineral Oil With Silica

    • TRANS-700

    Mineral Oil With Wax

    • TRANS-701
    • TRANS-708
    • TRANS-7285

    Mineral Oil With Surfactants

    • TRANS-713

    Vegetable Oil-Based

    • TRANS-400
    • TRANS-2883
    • TRANS-4022


    • TRANS-O 105
    • TRANS-O 580
    • TRANS-O 988



    • TRANS-205RM
    • TRANS-280K
    • TRANS-393W
    • TRANS-396
    • TRANS-1553


    • TRANS-245
    • TRANS-785
    • TRANS-786
    • AC-24
  • Powdered Defoamers

    These antifoam compounds are applicable in myriad industries, providing fast yet effective defoaming and stability for lasting results using small concentrations.


    • TRANS-2112


    • TRANS-414
    • TRANS-3040

Defoamers & Antifoams From Applied Material Solutions

Defoamers and antifoams not only successfully prevent or eliminate foam, but they also help ensure product quality, operational efficiency, facility safety, and even cost savings. To handle foam for diverse industries, Applied Material Solutions has developed a comprehensive line of defoamer and antifoam product solutions with a range of chemical makeups and specialized formulas.

Beyond our defoaming solutions, which we manufacture with our proprietary chemical processes, we also specialize in hydrophobic and colloidal silicas, silicone emulsions, corn oil demulsifiers, die cast lubricants, and more. We also offer toll manufacturing services as well as private labeling, developing and supplying trusted chemical products ranging from simple blends to reactions per your requirements.

At our well-equipped facilities, we combine best-in-class technology with hot oil and steam reactors, blend and storage tanks, and machinery for shearing, milling, and laboratory support to generate chemicals of only the highest quality. As part of that commitment to quality and food safety in our management systems, our company is ISO 9001:2015, ISO FSSC 22000, and GFSI certified.

To learn more about our foam control products and how they can support your specific application, contact our team today.

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