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Afcona 3280 is a liquid, specially modified polysiloxane designed for slip, defoaming, and enhancing surface characteristics in various coating applications. It is compatible with acrylics, alkyds, polyesters, polyurethanes, and unsaturated polyesters, facilitating chemical and radiation cure methods. It serves as a deaerator and slip agent, ensuring moderate slip performance and recoatability.

Chemical Family: Polysiloxane, Organomodified, Silicones

Compatible Polymers & Resins: Acrylics, Alkyds, Polyesters, Polyurethanes (PU), Unsaturated Polyester (UPE)

Solid Content: 89.0 - 89.0 %

Features: Anti-Cratering , Defoaming, Enhanced Surface Smoothness, Floating Resistance, Good Leveling, Hot Water Resistance, Moderate Slip Performance, Recoatability

End Uses: Enamel, Radiation Curable Coating, Radiation Curable Ink, Wood Coating

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Technologies
Chemical Composition

Special organically modified polysiloxane

Features & Benefits

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Ink & Toner Type
Incorporation

AFCONA-3280 can be added at any stage of production process. However high shear force is needed if added in letdown stage due to the defoaming properties. For easier incorporation, dilute to 10% in any solvent/s.

Addition and Dosage

0.05 – 0.50% on total formulation. In general, under normal conditions, the dosage is 0.05 – 0.2% based on total formulation.

Properties

Physical Form
Appearance
Transparent To Slight Yellowish Liquid
Typical Properties
ValueUnitsTest Method / Conditions
Solid Contentmin. 89%
Active Ingredientmin. 96%
Colormax.3
Denisty (at 20°C)0.89 - 0.92g/cm³
Refractive Index1.425 - 1.435
Flash Point100.0°C
Product Properties

AFCONA-3280 is a special modified polysiloxane where it soluble in aliphatic and aromatic hydrocarbons, esters and ketones, insoluble in water. This special modified polysiloxane do not cause intercoat adhesion problems even without sanding. Due to the special modification, it even gives better hot water resistance than other polyether modified Polysiloxanes.

AFCONA-3280 improves the general surface characteristics and in particularly the following advantages will be gain.
1) improved leveling and surface smoothness
2) moderate slip performance
3) No intercoat adhesion problems even without sanding
4) acts as a defoamer and de-aeration aid, no inner bubble problems in PU Coatings
5) avoids the formation of Bénard cells (antifloating effect)

AFCONA – 3280 especially is recommended for the following coating systems:
1) stoving enamels based on alkyd-, acrylicor polyester resins
2) Acid curing and PU wood coatings especially for dipping, curtain coater process and high porous wood substrates
3) self-leveling epoxy flooring compounds 4) UV-curing inks and coatings

Packaging & Availability

Packaging Information

25 kg and 180 kg non-returnable containers

Storage & Handling

Shelf Life
5 years
Storage Condition

AFCONA-3280 should be stored in a cool dry place. When kept in an original unopened container, it will keep up to 5 years from the date of manufacture. The expiry date is indicated on the container.