DISPERBYK® 2055 is a 100% wetting and dispersing additive designed for solventborne, solvent-free, and aqueous cost-sensitive formulations. It is compatible with a variety of polymers and resins, including acrylic-melamine, nitrocellulose, alkyds, alkyd-melamine, and polyurethanes (PU). This additive offers high molecular weight and viscosity, making it suitable for wood coatings and UV coatings. It improves dispersion and is effective as both a wetting agent and dispersant in solventborne and high-solids coatings, ensuring enhanced performance in a range of coating applications.

Compatible Polymers & Resins: Acrylic-Melamine, Alkyd-Melamine, Alkyds, Nitrocellulose, Polyurethanes (PU)

Physical Form: Liquid

Enhanced TDS

Identification & Functionality

Features & Benefits

CASE Ingredients Features
Key Features
  • DISPERBYK-2055 is a high molecular-weight wetting and dispersing additive with a solids content of 100%.
  • It is liquid and has a good processing viscosity.
  • DISPERBYK-2055 can be used in systems of varying polarity, from low-polarity solvent-borne systems, including air-drying alkyds, alkyd/melamine resins, nitrocellulose, 2-pack polyurethanes, acrylic/melamine resins, and UV-curable coatings, through to aqueous systems.
  • In solvent-borne systems it can be used with or without grinding resin, whereas in aqueous formulations the best results are achieved with binder-free grinds.
  • DISPERBYK-2055 is the perfect additive for co-grinds, in which different pigments are typically ground together, and for pigment concentrates.
  • With DISPERBYK-2055, it is possible to produce binder-containing or binder-free pigment concentrates that can be used both in aqueous and in solvent-borne coatings.
  • DISPERBYK-2055 stabilizes inorganic pigments, including titanium dioxide and transparent iron oxides, organic pigments, carbon blacks, effect pigments, fillers, and matting agents. DISPERBYK-2055 has no negative impact on coating adhesion (not even when applied directly to metal), water- and chemical resistance, or hardness and yellowing resistance. DISPERBYK-2055 has an excellent price-performance ratio.

Applications & Uses

Markets
Applications
Application Area
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Coating End Applications
Use Level
15 - 80% (Carbon Blacks), 10 - 35% (Organic Pigments), 2 - 3% (Titanium Dioxides), 8 - 12% (Inorganic Pigments)
Processing Instructions
  • The wetting and dispersing additive should be added to the millbase.
  • The pigments should be added only once the additive has been completely distributed.
  • This ensures its maximum effectiveness.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Flash Point110°C-
Non-Volatile Matter (10 min, at 150°C)100%-
Density (at 20°C)1.1g/ml-
Amine Value40mg KOH/g-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Auto Ignition Tempertauremin. 200°CM0062, Analytics Wesel
Flash Point110°CPensky-Martens
Initial Boiling Pointmin. 150°CDerived
Melting Pointmax. -18°CDerived
Density (at 20°C, 1013 hPa)1.1g/cm³Oscillating U-tube
Vapour Pressure (at 20°C)max. 1hPaDerived
AppearanceLiquid--
ColorLight brown--
Flammability (liquids)Sustains Combustion--
Miscible inWater--
pH (Concentration: 1% in water)9-DIN 19268
Composition Data

Copolymer with pigment-affinic groups

Regulatory & Compliance

OEM Specifications