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Super Fine Aluminum Paste 3504 – High-Purity Fine Silver Paste for Ink and Paint Applications

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Super Fine Aluminum Paste 3504 – High-Purity Fine Silver Paste for Ink and Paint Applications

Fine white aluminum paste
Characteristics:fine partical size,high whiteness,strong hiding powder,smooth surface,uniform partical size distribution,high cleanliness.
Application:widely used in plastic paint,automotive paint,ink,coil,textile coating and so on.

  • Order(MOQ) :

    25kg
  • Payment :

    TT,L/C,Paypal, Western union
  • Product Origin :

    Tongling
  • Brand :

    Tuocai
  • Shipping Port :

    Shanghai
  • Lead Time :

    3-7days
  • Particle size :

    4um

I. Core Technical Characteristics (Based on Particle Size and Morphological Design)

  1. Refined Particle Size with Narrow and Uniform Distribution
    • Key Parameters: Median particle size (D50) ≈ 4μm, particle size distribution range (D10-D90) typically controlled between 2-8μm, no large-particle impurities (D95 ≤ 10μm), achieved through precision particle size control via air jet milling + classification technology.
    • Technical Advantages: Compared with conventional fine aluminum silver paste (8-12μm), the ultra-fine particle size reduces inter-particle agglomeration risk, enabling more uniform dispersion in systems and avoiding "granular 感" or "pinhole" defects in coatings.
  2. Optimized Flake Structure and Outstanding Optical Performance
    • Morphological Features: Aluminum flakes with an aspect ratio (diameter/thickness) of 80-120, surface treated with special coating (e.g., silane, fatty acid) for high smoothness and strong oxidation resistance.
    • Core Optical Effects:
      • Whiteness Value (L*) ≥ 95: Significantly higher than ordinary aluminum silver paste (L* ≈ 90), providing stronger substrate hiding power and reducing coating consumption.
      • Glossiness (60°) ≥ 85%: Delivering a mirror-like reflective effect with uniform light reflection and no glare, suitable for high-decorative scenarios.
      • Soft Metallic Texture: Ultra-fine particles minimize the "abruptness" of metal particles, presenting a delicate and mellow metallic luster instead of a rough granular appearance.
  3. Excellent Dispersion and Stability
    • Dispersion Performance: Moderate specific surface area and fine particle size enable rapid dispersion in solvent-based (e.g., PU, NC, UV) and water-based systems without excessive dispersants, reducing formulation costs.
    • Chemical Stability: The surface coating isolates oxygen, moisture, and acid-base media, offering superior weather resistance (no obvious discoloration after 6 months of outdoor exposure) and chemical resistance (pH 4-9 acid-base tolerance) compared to ordinary fine aluminum silver paste, preventing blackening and oxidative dulling.
    • Storage Stability: No sedimentation or stratification for 12 months under sealed conditions, eliminating the need for secondary stirring during construction and improving production efficiency.

II. Core Application Advantages (Integrating Industry Practical Scenarios)

  1. Extremely Fine Coating Appearance for High-Decoration Requirements
    • Pain Point Resolution: Conventional aluminum silver paste is prone to "orange peel" and "particle protrusion"; ultra-fine particles achieve a coating surface roughness (Ra) ≤ 0.2μm, delivering a "mirror-smooth" effect.
    • Typical Applications: Automotive refinish paints, high-end furniture paints, 3C product casings (e.g., mobile phones, laptops), musical instrument coatings, and other fields with strict appearance requirements.
  2. Strong Compatibility with Multiple System Formulations
    • Solvent-Based Systems: Excellent compatibility with polyurethane, nitrocellulose, acrylic, and UV-curable resins, enabling direct addition to formulations without affecting viscosity or drying speed.
    • Water-Based Systems: Hydrophilically modified 4μm fine white aluminum silver paste (water-based dedicated type) stably disperses in water-based acrylic and water-based PU without floating or blooming, meeting environmental coating demands (e.g., water-based automotive paints, water-based toy paints).
    • Special Systems: Suitable for powder coatings (via granulation) and inks (e.g., metallic screen printing inks), expanding application scenarios.
  3. Wide Construction Adaptability and Reduced Operational Difficulty
    • Compatible with Multiple Application Methods: Spraying (air spraying, electrostatic spraying), brushing, rolling, curtain coating, etc., with no easy gun clogging or sagging, ensuring flat film formation.
    • Broad Construction Window: Tolerant to construction environments (temperature 15-35℃, humidity ≤70%), requiring no strict parameter control and reducing scrap rates.
    • Efficient Thin Coating: Strong hiding power allows ideal results with a film thickness of only 30-50μm, saving 20-30% coating consumption compared to conventional aluminum silver paste and lowering overall costs.

 

 

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