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AFCONA 2724 is a defoamer and air-releaser for unsaturated polyester, polyurethane, UV, and epoxy resin systems. It is an alternative to AFCONA 2720 for high solid applications such as UPE, epoxy, and polyurethane. AFCONA 2724 offers very good transparency and performs as a de-aerator in polyester and epoxy resin systems, ensuring the production of foam- and bubble-free compounds and parts. It is especially compatible with epoxy systems.

Chemical Family: Silicones

Functions: Defoamer

End Uses: 2K (2 component) Coating, Gelcoat, Solventborne Coating, Solventless & High Solids Coating

Compatible Polymers & Resins: Epoxies (EP), Melamines & Melamine Formaldehydes (MF), Polyurethanes (PU), Polyvinyl Chloride (PVC), Unsaturated Polyester (UPE)

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Product Features
  • AFCONA-2724 provides good leveling of the surface (no craters or air bubbles) in epoxy resin systems.
  • AFCONA-2724 is recommended for thin layer (gel coat), casting resins and epoxy resin systems (e.g. floorings). In addition, it can be used for room temperature curing of unsaturated polyesters that are used in glass fiber reinforced systems.

AFCONA-2724 can be used in pigmented and non-pigmented resin systems such as:

  1. unsaturated polyesters (SMC/BMC gel coats and synthetic mortars)
  2. two-pack epoxies
  3. polyester/melamine heat-cured systems
  4. PVC-compounds

Applications & Uses

Incorporation
To prevent foam - and bubble-formation, AFCONA-2724 should be added at the beginning of the production process or application into the system. If it is added at the end of the formulation, good dispersion must be ensured.
Addition and Dosage
AFCONA-2724 may be used at 0.1 -0.5% on total formulation. Under normal conditions, 0.1 - 0.3% based on total formulation is sufficient.

Properties

Physical Form
Appearance
Transparent to slightly yellowish liquid
Specifications
ValueUnitsTest Method / Conditions
Density (at 20°C)0.82 - 0.84g/cm³—
Refractive Index1.430 - 1.440——
Flash Point24.0°C—

Packaging & Availability

Country Availability
Regional Availability
  • Canada
  • USA
Packaging Information
55 lb and 375 lb non-returnable containers

Storage & Handling

Storage Information

AFCONA-2724 should be stored in a cool, dry place. When kept in its original, unopened container, it will keep up to 5 years from the date of manufacture. The expiration date is indicated on the container.

Note: AFCONA – 2724 will become slightly hazy at temperatures below 5° C. This will not influence the quality or performance of the product.