BYK-162

Product Details

CasNo： 64742-46-7

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

Basic Information

• Brand and Model: BYK, BYK-162
• Packaging Specifications: 25 kg/blue iron drum (suitable for laboratory research, small-batch trials, and procurement by medium and medium-sized wood coating enterprises, meeting flexible production needs), 195 kg/blue iron drum (suitable for large-scale production in furniture coating factories, reducing unit packaging costs and procurement frequency)
• Chemical Composition: High-molecular-weight block copolymer solution containing pigment-affinic groups (in its molecular structure, pigment-affinic groups can precisely adsorb onto the surface of carbon black and organic pigments, while high-molecular-weight block chains form a long-term stable dispersion system through steric hindrance, preventing pigment agglomeration)

Product Characteristics

• Appearance and Physical Properties:Typically a pale yellow to light amber transparent liquid with no irritating odor. At 20°C, its density is approximately 1.03 - 1.13 g/cm³, and its flash point exceeds 60°C, resulting in low fire risk and high safety during storage and transportation. It exhibits excellent compatibility with solvent-based coating systems (especially two-component polyurethane systems) and pigment concentrates, enabling rapid and uniform dispersion without stratification, flocculation, or turbidity, and does not affect the final appearance of coatings.

• Core Functions

  1. Specialized Stabilization for Carbon Black and Organic Pigments: It has strong affinity for carbon black (especially high-pigment carbon black) and organic pigments (such as phthalocyanines and azo pigments). It can penetrate into pigment agglomerates, efficiently break flocculent structures, and achieve long-term stability through steric hindrance, preventing pigment re-aggregation during storage and ensuring color uniformity.
  2. Compatibility with Two-Component Polyurethane Systems: Specifically designed for two-component polyurethane wood/furniture coatings, it has good compatibility with isocyanate curing agents. It does not react adversely with resins during curing, and does not affect coating hardness, adhesion, or chemical resistance (e.g., alcohol resistance, stain resistance), meeting the strict performance requirements of wood furniture coatings.
  3. Performance Optimization and Upgrade: After deflocculation, pigment particles become finer and more uniformly distributed, which can significantly improve coating gloss (giving wood furniture surfaces a high mirror effect), color saturation (achieving target color depth with less pigment usage), and enhance coating transparency (suitable for transparent/translucent wood coatings) or hiding power (suitable for solid-color wood coatings).
  4. Efficient Viscosity Reduction: It can effectively reduce the viscosity of grinding pastes (by 30% - 45% compared to non-added systems), improving grinding efficiency, reducing grinding energy consumption and equipment wear. It also allows the system to accommodate a higher proportion of pigments, increasing color concentration without affecting application fluidity.

Application Fields

• Main Application Scenarios

  1. Two-Component Polyurethane Wood Coatings: Including solid wood furniture paints, composite panel coatings, and wooden door coatings. It is used to disperse carbon black (for adjusting dark colors) and organic pigments (for achieving rich colors), ensuring high gloss, high hardness, and weather resistance of coatings, and enhancing the appearance quality and service life of wood furniture.
  2. Two-Component Polyurethane Furniture Coatings: Suitable for surface coating of office furniture and civil furniture. It solves the dispersion problems of carbon black and organic pigments, avoids defects such as color blooming and floating in coatings, and ensures batch consistency of furniture colors.
  3. Pigment Concentrates: Used in preparing solvent-based pigment concentrates (such as color masterbatches and tinting pastes) specially for wood coatings, ensuring storage stability of concentrates. Downstream customers can directly and quickly adjust colors during use, simplifying production processes and reducing color-mixing costs.

• Applicable Systems: Two-component polyurethane coating systems (hydroxyl acrylic resin, polyester resin combined with isocyanate curing agents), solvent-based pigment concentrates for wood coatings (with polyurethane resin or acrylic resin as carriers).

Recommended Dosage and Usage Methods

• Recommended Dosage:Calculated based on the "total amount of carbon black/organic pigments" in the formula, the conventional addition level is 2% - 5% (added directly as purchased). For high-pigment carbon black or ultra-fine organic pigments, the dosage can be appropriately increased to 5% - 7% to ensure sufficient deflocculation and stabilization.

• Usage Methods:

  1. Addition During Grinding Stage: Add BYK-162 together with carbon black/organic pigments, grinding resins (such as hydroxyl acrylic resin), and solvents into sand mills or high-speed dispersers. During the grinding process, the dispersant fully adsorbs onto pigment surfaces to form a stable steric hindrance layer, maximizing viscosity reduction and dispersion effects at this stage.
  2. Supplementary Addition During Paint Mixing Stage: If the system viscosity is too high or pigment dispersion is uneven after grinding, a small supplementary amount (not exceeding 20% of the total dosage) can be added during the paint mixing stage. After addition, stir at 1000 - 1400 r/min for 12 - 18 minutes to ensure complete integration with the system, then add curing agent and mix evenly.

Storage and Transportation

• Storage Conditions: Store in a cool, dry, and well-ventilated area at 5 - 35°C, avoiding direct sunlight (high temperatures may cause slight degradation of block copolymers, affecting dispersion performance) and freezing (temperatures below 0°C may cause slight stratification, which can be restored to uniformity and transparency after thawing and thorough stirring without affecting usage). Keep barrels tightly sealed to prevent solvent evaporation or contamination by impurities and moisture, avoiding impact on product purity.
• Shelf Life: 60 months under the above storage conditions (counted from the production batch date).
• Transportation Requirements: Transport as a "non-hazardous chemical." Avoid severe collisions and inversion during transportation (to prevent leakage from damaged blue iron drums). Provide sun protection during summer transportation; no additional insulation is needed in winter (short-term low temperatures do not affect product performance).

Competitive Advantages

1. Strong Scene Specificity: Specifically designed for two-component polyurethane wood/furniture coatings, it solves the dispersion pain points of carbon black and organic pigments. Its adaptability far exceeds that of general-purpose dispersants, ensuring both coating performance and appearance meet standards.
2. Efficient Pigment Stabilization: It has outstanding dispersion efficiency and stability for high-pigment carbon black and ultra-fine organic pigments, reducing pigment usage while avoiding defects such as color blooming and floating, and improving product qualification rates.
3. Balancing Application and Performance: While efficiently reducing viscosity and improving application smoothness, it does not affect core coating properties such as hardness and chemical resistance, meeting the dual needs of wood furniture for coating effects and service performance.
4. Technical Service Support: BYK provides a professional technical team that can customize dispersion solutions according to customers' specific pigment types and polyurethane system formulas, assisting in solving on-site issues such as uneven dispersion and abnormal viscosity, and accelerating product development and mass production processes.