Afcona - 3581 is a silicone-based leveling and anti-crater agent for aqueous coatings that does not influence intercoat adhesion.

Chemical Family: Polysiloxanes

Compatible Polymers & Resins: Acrylics, Alkyds, Epoxies (EP), Polyester - Melamine, Polyurethanes (PU)

Features: Anti-Cratering , Defoaming, Enhanced Surface Smoothness, Good Leveling, Improved Substrate Wetting

End Uses: Radiation Curable Coating, Waterborne Coating

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Identification & Functionality

Features & Benefits

CASE Ingredients Features
Product Features
  • Afcona – 3581 is the 50% solid version of Afcona – 3580, an organically modified polysiloxane with very short chain repeatable units of siloxane. These small molecules allow it to move very quickly to an area of defects. This offers very good anti-crater properties without causing intercoat adhesion problems.
  • Afcona – 3581 is widely used in electroplating and electrodeposition coatings to prevent crater formation. It also offers good leveling and a smooth appearance in the finished coating. It is not itself an ionic structure; it may be used in anionic and cationic systems.

Applications & Uses

Compatible Polymers & Resins
Cure Method
Coating End Applications
Product Applications

The use of Afcona-3581 gives the following advantages:

  • Excellent anti-crater behavior
  • Improved leveling
  • Better substrate wetting
  • No intercoat adhesion problems
  • Little or no foam stabilization

Note: Due to its small molecules, the slip performance of Afcona-3581 is reduced.

Afcona-3581 is recommended for use in all types of waterbased coatings with a pH range of 4 - 10.

Addition and Dosage

Afcona-3581 may be added at 0.1 - 1.0% based on total formulation. Under normal conditions, 0.1 – 0.3% based on total formulation is sufficient.Afcona-3581 may be added at 0.1 - 1.0% based on total formulation. Under normal conditions, 0.1 – 0.3% based on total formulation is sufficient.

Incorporation

Afcona-3581 should be added prior to, or after processing.

Properties

Physical Form
Appearance
Transparent to slightly yellowish liquid
Soluble in
Methoxy Propanol
Specifications
ValueUnitsTest Method / Conditions
Colormax. 3--
Active Ingredients50 - 54%-

Regulatory & Compliance

Packaging & Availability

Packaging Information

55 lb and 397 lb non-returnable containers.

Storage & Handling

Shelf Life
3 years
Storage Condition

Afcona-3581 should be stored in a cool, dry place.