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Fumed Silica IOTA HB4152


    Product description

    HB4152 is hydrophobic fumed silica which is produced by HL4200 after chemical post-treatment with DDS ( Dimethyldichlorosilane ).


    Specification

    IOTA HB4152

    Specific sunface area(BET), /g

    170±15

    pH value in 4% dispersion

    3.74.5

    Loss on drying(2 hours at 105), %

    ≤0.7

    Loss on ignition(2 hours at 1000 based on material dried for 2 hours at 105), %

    ≤2.5

    Sieve Residue(45μm), mg/kg

    -

    Silica Content(Based on ignited material), %

    ≥99.8

    Tamped Density(Based on material dried at 105 for 2 hours), g/dm²

    4060

    Carbon Content (Based on material dried at 105 for 2 hours), %

    0.81.6

     

    Applications 

    RTV silicone rubber,especially RTV-T

    Adhesives & Sealants

    Coatings & Printing ink

    Powder Coating

     

    Properties

    Good hydrohpobicity, thixotropy, thickening, transparency and reinforcement performance

    Anti-settling and anti-sagging agent

    Free flow aid and anti-caking aid for powders

    Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic feature gives RTV silicone sealants a long shelf-life 

     

    Package

    White kraft paper bag, 10KG/Bag


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