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    AI Overview
    AF-4 Anti-Foaming Agent - Barnes Products
    Effective antifoaming agents for resins (epoxy, polyurethane, polyester) include specialized additives that reduce surface tension to break bubbles and aid vacuum degassing. Key options include BJB Materials AF-4 or AF-5 for urethanes, LOCTITE STYCAST ANTIFOAM 88 for versatile resin systems, and silicone-based options like BYK-1765 for coatings. These, and others, prevent surface defects and enhance flow. 
    Key Antifoaming Agents by Type: 
    • Silicone-Free/Polyurethane Compatible: AF-4 (BJB) and AF-5 (BJB) are designed to reduce surface tension in resin mixtures, improving wet-out, and are used to aid vacuum degassing in polyurethane and epoxy systems.
    • General Purpose/Organic: LOCTITE STYCAST ANTIFOAM 88 (Henkel) is effective for epoxies, urethanes, and polyester resins.
    • Waterborne System Additives: Silicone-based defoamers like BYK-1765 can improve film quality in coatings.
    • Industrial/Water-Based Resin Systems: XIAMETER™ AFE-1520 is a ready-to-use silicone emulsion for foam control in aqueous systems. 
    Application Notes: 
    • Vacuum Degassing: Antifoaming agents work best when paired with vacuum degassing to fully eliminate trapped air.
    • Usage: Only small amounts are required to prevent surface imperfections and improve resin flow.
    • Compatibility: Polymer-based defoamers are preferred for high gloss and clear coatings to prevent haze. 
    • LOCTITE STYCAST ANTIFOAM 88 - Henkel
      LOCTITE STYCAST ANTIFOAM 88 organic air release additive is designed to reduce or prevent foam formation in epoxies, urethanes, po...
      Henkel
    • AF-4 Anti-Foam
      AF-4 is an anti-foam agent that's recommended as an additive for many polyurethane systems. It's used to: * **Reduce surface tensi...
      BJB Materials
    • AF-5 Anti-Foam - BJB Materials
      AF-5 is designed to aid the de-airing of epoxy, polyurethane and phenolic resin systems. When stirred into already mixed A & B com...
      BJB Materials
    • BYK-1765 – a new and well-balanced defoamer
      May 2, 2023 — systems can say BY765 is a onefit all deformer epoxy systems highly efficient in high solid and solvent free epoxy. systems. now w...
      6m
      YouTube·BYK Additives
    • AF-4 Defoamer - Anti-Foam – brickintheyard
      Size. 4oz. Pint. Quart. 4oz. - $16.50 USD. Pint - Sold Out. Quart - Sold Out Quantity. Add to Cart Only 1 left! Anti-foam AF-4 is ...
      Brick in the Yard Mold Supply
    • Defoamer Additives and Defoaming Mechanism Theory | Anti ...
      Sep 5, 2025 — others at letdown to suppress application foam testing evaluate with drawdowns foam cylinder tests. and application specific trial...
      1m
      YouTube·CASE Chemistry
    • LOCTITE STYCAST ANTIFOAM 88 - Henkel
      LOCTITE STYCAST ANTIFOAM 88 organic air release additive is designed to reduce or prevent foam formation in epoxies, urethanes, po...
      Henkel
    • AF-4 Anti-Foam
      AF-4 is an anti-foam agent that's recommended as an additive for many polyurethane systems. It's used to: * **Reduce surface tensi...
      BJB Materials
    • AF-5 Anti-Foam - BJB Materials
      AF-5 is designed to aid the de-airing of epoxy, polyurethane and phenolic resin systems. When stirred into already mixed A & B com...
      BJB Materials
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    Web results

    Defoamers and Air Release Additives


    BYK Additives
    https://www.byk.com › product › defoamers-and-air-rel...
    BYK Additives
    https://www.byk.com › product › defoamers-and-air-rel...
    Defoamers or air release agents prevent and destroy the foam bubbles and enable an improved processing, a perfect surface and optimum product properties.Read more

    XIAMETER™ AFE-1520 Antifoam Emulsion


    Dow
    https://www.dow.com › en-us
    Dow
    https://www.dow.com › en-us
    20% active, food-grade silicone emulsion designed to control foam in both hot and cold aqueous systems. Effective in low concentrations.Read more

    Antifoaming agent for new resins - Feature Requests & Ideas


    Formlabs Community Forum
    https://forum.formlabs.com › antifoaming-agent-for-ne...
    Formlabs Community Forum
    https://forum.formlabs.com › antifoaming-agent-for-ne...
    Mar 16, 2018 — Could we get an antifoaming agent for the new resins? I've had some issues where foam is getting on finished surfaces and leaving artifacts in the finish.Read more
    Missing: n ‎| Show results with: n
    People also ask
    What is an example of an antifoaming agent?
    An error has occurred. Please try again later.
    What can I use as an anti-foaming agent?
    Product Recommendations
    • Silicone Antifoam Compound.
    • Silicone Antifoam Powders.
    • Silicone Antifoam Emulsions.
    • Self-Dispersing Antifoam Concentrates.

    Antifoams for Household & Cleaning - Wacker Chemie AG


    Wacker Chemie AG
    https://www.wacker.com › products › antifoam › antifoam
    Wacker Chemie AG
    https://www.wacker.com › products › antifoam › antifoam
    Which one is used as an antifoaming agent?
    Commonly used antifoaming agents are certain alcohols (cetostearyl alcohol), insoluble oils (castor oil), stearates, polydimethylsiloxanes and other silicones derivatives, ether and glycols (Karakashev and Grozdanova, 2012).

    Antifoaming Agent - an overview | ScienceDirect Topics


    ScienceDirect.com
    https://www.sciencedirect.com › medicine-and-dentistry
    ScienceDirect.com
    https://www.sciencedirect.com › medicine-and-dentistry
    How to make an antifoam agent?
    Typically, an aqueous silicone antifoam composition is prepared by making a mixture of water, silicone-based antifoam compound (e.g., mixtures of silicone fluid and particulate fillers such as silica), emulsifiers and other conventional additives in a premix vessel, milling the mixture until a homogeneous, non-settling ...

    Process for the preparation of aqueous antifoam compositions


    Google Patents
    https://patents.google.com › patent
    Google Patents
    https://patents.google.com › patent

    Web results

    AF-4 Anti-Foam


    BJB Materials
    https://bjbmaterials.com › ...
    BJB Materials
    https://bjbmaterials.com › ...
    Anti-foam AF-4 is a surface tension relieving agent recommended as an additive for many polyurethane systems.Read more
    $16.50
    Missing: n ‎| Show results with: n

    Select Defoamers / Anti-Foaming Agents for Adhesives


    SpecialChem
    https://www.specialchem.com › Adhesives › Guide
    SpecialChem
    https://www.specialchem.com › Adhesives › Guide
    Jul 7, 2025 — Defoaming/Anti-foaming Agents are primarily used in formulating water-borne adhesives, but they are also used in solvent-borne and solvent-free systems.Read more

    Silicone Anti Foaming Agent,Silicone Defoamer Manufacturer


    xiamen rickman chemical technology co., ltd
    https://www.rickmanchemical.com › silicone-antifoam_c...
    xiamen rickman chemical technology co., ltd
    https://www.rickmanchemical.com › silicone-antifoam_c...
    Silicone antifoams from Rickman are available in emulsion,fluid,and powder forms,and they are long-lasting and stable over a wide range of temperatures.

    LOCTITE STYCAST ANTIFOAM 88


    Henkel
    https://datasheets.tdx.henkel.com › LOCTITE-ST...
    Henkel
    https://datasheets.tdx.henkel.com › LOCTITE-ST...
    PDF
    LOCTITE STYCAST ANTIFOAM 88 organic air release additive is designed to reduce or prevent foam formation in epoxies, urethanes,.Read more
    2 pages

    AF-4 Defoamer - Anti-Foam


    Brick in the Yard Mold Supply
    https://www.brickintheyard.com › products › af-4-anti-f...
    Brick in the Yard Mold Supply
    https://www.brickintheyard.com › products › af-4-anti-f...
    Anti-foam AF-4 is a surface tension relieving agent recommended as an additive for many polyurethane systems.Read more
    $16.50 to $36.00 · In stock · 30-day returns

    Defoamers and Antifoam Agents: How are they used?


    Polywill
    https://www.polywill.com › defoamers-and-antifoam-ag...
    Polywill
    https://www.polywill.com › defoamers-and-antifoam-ag...
    Aug 21, 2025 — For water-based and solvent-based paints, common antifoaming agents include silicones, fatty alcohols, and polyethers. III. How to Use Defoamers ...Read more
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    BYK-1765 – a new and well-balanced defoamer


    YouTube · BYK Additives
    1.3K+ views · 3 years ago
    YouTube · BYK Additives
    1.3K+ views · 3 years ago
    13:51
    This new additive helps you to solve problems within your formultion. It is especially designed for high-solid and solvent-free epoxies and ...
    3 key moments3 key moments in this video
    From 03:51
    How To Test the Deformer
    From 08:23
    The De-Aeration Process Duration
    From 10:29
    Pull-Off Test
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