LUDOX® - Domestic Colloidal Silica

    Long lead times, inconsistent quality, a lack of technical and customer service.  These are all issues businesses can face when utilizing import raw materials.  In many cases import material may offer what looks to be a cost savings, but when you factor in all of the problems that can arise that savings quickly evaporates.  Grace, an expert in silica for over 100 years, produces LUDOX® in the USA and offers reliable supply and customer service for a material that is typically difficult to import.  In addition, LUDOX® offers quality and consistency that can't be matched by common import material.

    Stable Supply

    Consistent Quality

    Dedicated Service

    LUDOX® is produced domestically and most grades are stocked by ChemPoint.  Eliminate long lead times and large minimum order quantities.
    The manufacturing process for LUDOX® is tightly controlled to ensure consistency and purity from batch to batch.
    ChemPoint has product experts standing by backed by the technical expertise that Grace provides.   Let us help guide you through your questions.

Find a Grade That Meets Your Specification


LUDOX® is available in many grades ranging in particle size, surface charge, counter ion, pH, and silica content.  With so many options it is likely there is a grade that matches the specifications and needs of your current manufacturing process.  See the table below to find a LUDOX® grade meets your current specifications.

Can't find your grade or not sure of the specifications?  Check out our Selector Guide to find a grade by functionality.
    GradeSurface ChargeParticle Size (nm)Silica Content (%)Counter IonpH
    SM
    Anionic
    7
    30
    Sodium10
    SM-AS
    Anionic
    7
    25
    Ammonium9.5
    HS-40
    Anionic
    12
    40
    Sodium9.7
    HS-30
    Anionic
    12
    30
    Sodium9.7
    AS-30
    Anionic
    12
    30
    Ammonium9.4
    AM
    Anionic
    12
    30
    Sodium9
    LS
    Anionic
    12
    30
    Sodium8.2
    CL
    Cationic
    12
    30
    Chloride4
    HSA
    Anionic
    12
    30
    None4
    SK
    Anionic
    12
    25
    None4
    DF
    Anionic
    12
    39
    Sodium9.5
    TM-50
    Anionic
    22
    50
    Sodium9
    TM-40
    Anionic
    22
    40
    Sodium9
    AS-40
    Anionic
    22
    40
    Ammonium9.2
    CL-X
    Anionic
    22
    45
    Sodium9
    CL-P
    Cationic
    22
    40
    Chloride4
    TMA
    Anionic
    22
    35
    None7
    PW-50EC
    Anionic
    40
    50
    Sodium10.2

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