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Fumed Silica IOTA HB4630


    Product description

    HB4630 is hydrophobic fumed silica which is produced by HL4380 after chemical post-treatment with HMDS (Hexamethyldisilazane).


    Specification

    IOTA  HB4630

    Specific sunface area(BET), /g

    280

    pH value in 4% dispersion

    5.58.0

    Loss on drying(2 hours at 105), %

    ≤0.5

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

    ≤4.0

    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), %

    2.54.0

     

    Applications 

    Elastomers, HTV silicone rubber and LSR

    Coatings & printings ink 

    Defoamer                           

    Carbon Powder for Printer

     

    Properties

    High reinforcement and transparency in HTV and LSR

    High hydrophobicity and stable thixotropy 

    Anti-settling and anti-sagging agent in coatings and printing ink  

    High anti-foam property   

    Free flow aid and anti-caking aid for powders

     

    Package

    White kraft paper bag, 10KG/Bag


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