Cerafak® 106

Coatings Industry
Special Features and Benefits
The additive improves the orientation of effect pigments (e.g. aluminum, mica) and enhances the flip-flop effect. Short wave defects (mottling, Bénard cells) are minimized and leveling of the subsequent clear coat layer is improved. Settling in the container is also reduced.

Recommended Use
Cerafak® 106 is recommended for solvent-borne base coats and one coat metallic top coats for automotive coatings.
Recommended Levels
50% additive (as supplied) based upon the solid binder.
The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.
Incorporation and Processing Instructions
The wax additive must be homogenized before use with a dissolver (4 m/s) and then added to the binder solution under agitation. In systems with CAB, the CAB solution must first be incorporated homogeneously in the binder solution at high shear forces (> 5 m/s) before the stirred wax additive, the effect pigment slurry and the solvent can be added under agitation.

Test method: Seeding

• The wax additive is homogenized with a dissolver for 5 min at 4 m/s, then diluted with 20% n-butyl acetate and stirred for a further 2 min at about 4 m/s. A draw down is then made on a glass panel with a 100 μm doctor blade. The resulting film must be clear and free of seeds during drying. 

Test method: Particle Size Measurement with Grind-Gauge According to ISO 1524 

• The wax additive is homogenized with a dissolver for 5 min at 4 m/s. A draw down is then made on a 50 μm grind-gauge. Result: 20 μm particle size. 

Ethylen-Vinylacetat-Copolymerwachsdispersion (EVA)

Temperature sensitive. Do not store or transport above 35 °C. Stir before processing.