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AFCONA 2790 is a polysiloxane-based defoamer designed for use in solvent-borne and solvent-free systems such as epoxy, PU, UV curing, and unsaturated polyester systems. It is also ideal for solvent-based silk printing ink applications. This defoamer has strong anti-foam and deaeration characteristics, quickly removing tiny bubbles in these systems, as well as quickly breaking surface foam. It is suitable for high viscosity solvent-based and solvent-free coatings and ink systems, and its specially designed structure also enhances film leveling behavior. Additionally, AFCONA 2790 is solvent-free, making it ideal for solvent-free construction techniques.

Chemical Family: Silicones

Functions: Defoamer

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

Compatible Polymers & Resins: Epoxies (EP), Polyurethanes (PU), Unsaturated Polyester (UPE)

Solid Content: 96.0 - 96.0 %

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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Product Features

AFCONA - 2790 is recommended to below applications:

  1. Solvent free and solvent based 2 pack epoxy systems
  2. Solvent free and thick film PU systems
  3. Solvent based or solvent free silk screen printing ink systems
  4. Suitable for colorants which contain pigments. It is suggested to carefully evaluate the compatibility of AFCONA 2790 with resins before applying in clear coatings.

Applications & Uses

Cure Method
Ink & Toner Type
Incorporation
AFCONA - 2790 can be incorporated with shear force in any stage of process, as long as good dispersion is ensured.
Addition and Dosage
0.3 - 1.0% based on total formulation. In general under normal conditions 0.5-1.0% based on total solvent-free formulation; 0.3-0.8% based on total solvent based formulation.

Properties

Physical Form
Appearance
Cloudy viscous liquid
Specifications
ValueUnitsTest Method / Conditions
Flash Pointmin. 100°C—
Density (at 20°C)0.96 - 1.00g/cm³—
Non Volatile Matter96.0%—

Packaging & Availability

Country Availability
Regional Availability
  • Canada
  • USA
Packaging Information
25kg and 180kg non-returnable containers

Storage & Handling

Storage Information
AFCONA-2790 should be stored in a cool and dry place. When kept in an original unopened container, it will keep up for 3 years from the date of manufacture. The expiry date is indicated on the container.