DISPER BYK-2155

Product Details

CasNo： 108-65-6

MF： C6H12O3

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

Basic Information

• Brand Model: DISPER BYK - 2155
• Product Name: Dispersant
• Packaging Specification: 25 kg/blue iron drum
• Chemical Composition: Block copolymer containing basic pigment - affinic groups

Product Features

• VOC and Solvent - free Environmental Design:DISPER BYK - 2155 is 100% active substance, free of VOC (Volatile Organic Compounds) and solvents. It complies with environmental regulations and is suitable for scenarios with high environmental and health requirements (such as interior decoration, food - contact coatings, etc.). Meanwhile, it avoids safety hazards (such as flammability, odor pollution) caused by solvent volatilization.

• Efficient Reduction of System Viscosity:As a solvent - free wetting and dispersing agent, the basic pigment - affinic groups in its block copolymer structure can strongly interact with the surface of basic pigments, effectively reducing the cohesion between pigment particles and significantly decreasing the system viscosity. In high - solid - content and solvent - free coating systems, it can achieve high pigment loading at lower viscosity by improving pigment dispersion efficiency, optimizing the production process.

• Broad System Compatibility:It is suitable for solvent - based coatings, solvent - free coating systems and the production of wide - compatible pigment concentrates. Especially in systems such as thermoplastic acrylic (TPA) and nitrocellulose, it shows excellent compatibility without affecting the curing performance, gloss and adhesion of the coating, ensuring stable dispersion effects in different systems.

• Improvement of Pigment Content and Performance:Through efficient dispersion, it can significantly increase the pigment content (such as inorganic pigments, organic pigments) in color pastes, thereby enhancing the hiding power, color saturation and weather resistance of coatings. At the same time, uniformly dispersed pigments can improve the leveling property of the paint film, reduce problems such as flocculation and sedimentation, and improve the appearance quality of the coating.

Application Fields

• High - solid - content/Solvent - free Coatings:

  • Industrial protective coatings (such as anti - corrosion coatings for bridges and ships): Improve pigment dispersion in solvent - free epoxy systems, enhancing anti - corrosion performance and mechanical strength.
  • Original equipment manufacturer (OEM) automotive paints and refinish paints: Used in high - solid - content solvent - based systems to improve color consistency and paint film gloss, while reducing VOC emissions.

• Environmentally Friendly Coatings and Color Pastes:

  • Architectural coatings (interior wall paints): The VOC - free feature meets environmental standards, and at the same time ensures uniform dispersion of pigments to avoid color differences.
  • Printing inks and pigment concentrates: Used to prepare high - concentration color pastes, enhance the color brightness of printing, and adapt to fields with high safety requirements such as food packaging.

• Special Process Scenarios:

  • Reactive coating systems (such as two - component polyurethane): Promote pigment dispersion in a solvent - free environment without affecting the curing reaction, ensuring stable coating performance.
  • Coating of solvent - sensitive substrates (such as plastics, wood): Avoid solvent erosion of substrates while ensuring coating adhesion and aesthetics.

Recommended Dosage

The specific dosage (based on the total amount of pigments in coatings or color pastes in the purchased form) needs to be adjusted according to the type of pigments, system solid content and process requirements:

• It is generally recommended to determine the optimal addition amount (usually 0.5% - 3% of the pigment mass) through small - scale tests. Observe the viscosity change of the system, pigment dispersion state (such as fineness detection, gloss test) and cured performance (adhesion, hardness) to balance dispersion efficiency and cost.
• In high - solid - content systems, the dosage can be appropriately increased to obtain lower viscosity and higher pigment loading, but excessive addition should be avoided to prevent the decline of system stability.

Addition Method

• Pre - dispersion Process: When preparing pigment concentrates, first mix DISPER BYK - 2155 with part of the resin or carrier, and then add pigments for high - speed dispersion (such as sand milling, ball milling) to ensure that the dispersant is fully adsorbed on the pigment surface.
• Direct Addition Process: In coating production, the dispersant can be directly added to the solvent or resin system, stirred evenly, and then pigments are gradually added. Cooperate with dispersion equipment (such as high - speed disperser) to achieve efficient dispersion and avoid pigment agglomeration.

Storage Conditions

• Environmental Requirements: Store in a cool (5 - 30°C), dry and ventilated warehouse, avoiding direct sunlight or high temperature (exceeding 30°C may cause viscosity increase).
• Package Sealing: The package needs to be sealed after use to prevent moisture or impurities in the air from affecting product performance. If the viscosity increases in a low - temperature environment, it can be restored to room temperature and fully stirred before use, without affecting the effect.