chemical dispersant BYK DISPERBYK 180 wetting and dispersing additive for stabilizing inorganic pigments, TiO2

Solvent-free wetting and dispersing additive for solvent-borne, solvent-free and aqueous coating systems, printing inks and adhesives for stabilizing inorganic pigments, in particular titanium dioxide.

Composition

Alkylol ammonium salt of a copolymer with acidic groups

Typical Properties

The values indicated in this data sheet describe typical properties and do not constitute specification limits.

Amine value: 94 mg KOH/g

Acid value: 94 mg KOH/g

Density (20 °C): 1.08 g/ml

Non-volatile matter (10 min., 150 °C): 81%

Food Contact Legal Status

For the current food contact legal status, please contact us.

Storage and Transportation

Mix well before use. Separation or turbidity may occur. Heat to 30-40 °C and stir.

Coating Industry, Printing Inks and Adhesives

Special Features and Benefits

The additive deflocculates pigments by means of steric stabilization. As a result of the small particle sizes of the deflocculated pigments, high levels of gloss can be achieved and the color strength is improved. Transparency and
hiding powder also increase and viscosity is reduced. In this way, the flow characteristics are also improved and
higher pigment loading is possible.

Recommended Use

The additive is recommended for all aqueous, solvent-borne and solvent-free systems to stabilize inorganic pigments, specifically titanium dioxide.

Recommended Levels

Amount of additve (as supplied) based upon pigment.

Inorganic pigments: 5-10%

Titanium dioxides: 1.5-2.5%

The above recommended levels can be used for orientation. Optimal levels are determined through a series of laboratory tests.

Incorporation and Processing Instructions

For optimum performance, the additive must be incorporated into the millbase before addition of
pigments. The resin and solvent components of the millbase are pre-mixed and then the additive is
slowly incorporated while stirring continuously. Do not add the pigments until the additive has been
fully distributed.