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Untreated Hydrophilic Amorphous Fumed Silica K-150

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Untreated Hydrophilic Amorphous Fumed Silica K-150

Untreated Hydrophilic Amorphous Fumed Silica K-150

Its hydrophilic nature ensures good wettability in polar solvents, while its amorphous structure provides consistent performance across different formulations.

 

 

  • Número de artículo :

    28112200
  • Orden (MOQ) :

    4.4 Ton
  • Pago :

    T/T 100%
  • Origen del producto :

    CHINA
  • Color :

    WHITE
  • Puerto de embarque :

    SHANGHAI/NINGBO/QINGDAO
  • Plazo de entrega :

    30 DAYS
  • Peso :

    10KG/BAG

K-150

Untreated Hydrophilic Amorphous Fumed Silica K-150 is a high-purity white fluffy powder characterized by its large specific surface area of 150 m²/g. This versatile material is widely used in various industrial applications due to its exceptional properties

 

Key Functions and Applications:

  • Rheology & Thixotropy Control: K-150 effectively modifies the flow behavior of liquids, providing optimal viscosity adjustment and thixotropic properties, making it ideal for coatings, adhesives, and sealants.
  • Improvement of Free Flow: It acts as an anti-caking agent, enhancing the flowability of powdered products in food, pharmaceuticals, and chemical industries.
  • Adsorption: Due to its high surface area, it serves as an excellent adsorbent for liquids and gases, useful in catalysis, filtration, and desiccant applications.
  • Reinforcement: When incorporated into polymers, elastomers, or composites, it significantly improves mechanical strength, abrasion resistance, and durability.

  • Suspension: It stabilizes suspensions and prevents settling in liquid systems, ensuring uniform dispersion in paints, inks, and ceramic slurries.

     

Typical Properties of K-150

  UNIT VALUE
Specific Surface Area m²/g 150 ± 20
pH in 4% dispersion ~ 3.7 4.7
Drying Loss(2hr. at 105°C) wt. % ≤ 1.0
Ignition Loss(2hr. at 1000°C) wt. % ≤ 1.0
SiO2-content wt. % ≥ 99.8
Bulk Density g/l 50

 

Applications

  • sealants
    Adhesive&sealants

    Untreated Hydrophilic Fumed Silica K-150 is widely used in adhesives and sealants to improve viscosity control, prevent sagging, and enhance mechanical strength. Its thixotropic properties ensure easy application while maintaining structural stability in both solvent-based and water-based formulations.

  • silicone rubber
    HCR-silicone rubber
    In silicone rubber applications, K-150 acts as a reinforcing filler, improving tensile strength, tear resistance, and durability. It enhances processability by optimizing rheological behavior, making it suitable for extrusion, molding, and other rubber processing techniques.

     

  • RTV-SILICONE RUBBER
    RTV-silicon sealants
    K-150 provides excellent thickening and sag resistance in RTV silicone sealants. Its high purity ensures long-term stability, preventing yellowing or degradation in transparent formulations. It also improves adhesion and weather resistance in construction and automotive sealants.

 

Packing

K-150 is supplied in a paper bag of 10kg and a bigbag of customized quantity. The paper bag consistsof multiple layers and contains PE coated layerbetween the papers.

Storage

K-150 is a chemically stable material and does not degrade under normal conditions. However, to maintain optimal performance, the following storage guidelines should be followed:

  • Protect from moisture – Store in a dry, well-ventilated area to prevent clumping.
  • Avoid exposure to strong chemicals – Keep away from reactive substances that could affect its properties.
  • Recommended shelf life – Although stable, it is advisable to use the product within two years of production for best results.
  • Seal opened bags tightly – If not used completely, reseal the packaging to minimize exposure to humidity.

 

Proper storage ensures that K-150 retains its high purity, flowability, and performance characteristics throughout its lifecycle.

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