Available — Bulk Only

Silicone Antifoam Emulsion (Silicone Defoamer)

A water-dilutable silicone defoamer for knocking down and suppressing foam in aqueous process streams. Silicone antifoams of this type are used to suppress foam in aqueous systems, in petroleum processing, and in detergent and cleaning applications.

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At a Glance
Primary Role
Defoaming / Foam Control
Functional Roles
Applications & Use Cases
  • Aqueous foam control: Suppresses and breaks foam in water-based process systems.
  • Petroleum processing: Foam control in oil and gas processing streams.
  • Detergents & cleaning: Foam control in detergent and cleaning formulations.
  • Pre-emulsified form: Water-dilutable for direct dosing into aqueous systems.
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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Full Description

Silicone Antifoam Emulsion is a water-based dispersion of polydimethylsiloxane (silicone fluid) supplied for foam control. Silicone antifoams of this type are used to suppress foam in aqueous systems, in petroleum processing, and in detergent and cleaning applications.

Frequently Asked Questions

What is silicone antifoam emulsion?

Silicone antifoam emulsion is a water-based dispersion of polydimethylsiloxane (silicone fluid) supplied for foam control. The pre-emulsified form is water-dilutable for direct dosing into aqueous systems.

What is silicone antifoam used for?

It is used to suppress and break foam in water-based process systems, for foam control in petroleum and oil/gas processing streams, and in detergent and cleaning formulations. The emulsion form allows dosing directly into aqueous lines.

What is silicone antifoam made of?

It is a dispersion of polydimethylsiloxane (PDMS silicone fluid) in water, typically with emulsifiers to maintain a stable, water-dilutable emulsion. Exact composition varies by product; consult the SDS for the specific supplied grade.

How is silicone antifoam emulsion dosed?

Because it is pre-emulsified, it can be diluted in water and dosed directly into aqueous systems at the foam-prone point. Dosage depends on the system and foam load, so confirm an appropriate rate against your process and the product technical data sheet.

Can silicone antifoam emulsion be supplied in bulk?

Yes. RawSource supplies silicone antifoam emulsion in drum, tote, and IBC quantities for process, petroleum, and detergent applications. Request a bulk quote with your volume; CoA and SDS are available on request.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.