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  • IOTA GF999 Fire Resistant Silicone Structural Glazing Sealant

    IOTA GF999 Fire Resistant Silicone Structural Glazing Sealant

    1.Structural sealing and glazing for curtain wall with fire resistance requirement

    Features:

    1.FV-0 class of fire resistance capability ,the highest rate in China

    2.One part, neutral cure to form an extremely tough elastomeric rubber .

    3.non-corrosive

    4.Excellent weatherability and high resistance to ultra-violet radiation ,heat and humidity, and ozone

    5.Excellent resistance to temperature extremes, unaffected performance from –50 ℃ to +150 ℃

    6.Excellent unprimed adhesion to wide range of substrates

    7.Good compatibility with other neutral silicone sealants

     

    COLOURS

    IOTA GF999 is available in black and gray.

     

    PACKAGING

    IOTA GF999 is available in cartridges (net 300ml) and sausages (net 590ml).

     

    SPECIFICATIONS

    IOTA GF999 Fire Retardant Silicone Structural Glazing Sealant is designed to meet or even exceed the requirements of 

         Chinese national specification GB16776-2005 and GB /T 2408-2008

         Chinese corporate specification Q/71304249-7.002-2008

         Complies with ASTM C 1184

     

    Typical properties:

    These values are not intended for use in preparing specifications.

    Test Method

    Property

    Unit

    Standard

    Result  

    GB/T 13477 (ISO 7390)

    Slump

    mm

    ≤3

    0

    GB/T 13477 (ISO 8394)

    Extrusion rate

    s

    ≤10

    2.0

    GB/T 13477 (ASTM D 2377)

    Tack free time

    h

    ≤3

    1.0

    GB/T 531.1 (ISO 7619) 53113477

    Hardness

    Shore A

    2060

    47

    GB 16776 (ASTM C 792)

    Heat Aging

     

     

     

    weight loss

    %

    ≤10

    3.4

    cracking

     

    Nil

    Nil

    chalking

     

    Nil

    Nil

    GB/T 13477 (ISO 8339)

    Tensile strength at

    MPa

     

     

    23

     

    ≥0.60

    1.03

    90

     

    ≥0. 45

    0.86

    -30

     

    ≥0. 45

    1.37

    water immersion

     

    ≥0. 45

    1.01

    water-UV exposure

     

    ≥0. 45

    0.92

    adhesion failure

    %

    ≤5.00

    0

    extension rate at ultimate tensile strength at 23

    %

    ≥100

    182

    GB/T 2408

    Fire resistance rate

     

    FV-0

    FV-0

    *GB: Chinese National Standard

     ASTM: American Society for Testing and Materials

     ISO: International Standardization Organization

     The “GB” testing method is equivalent or partly equivalent to that in the “()

     

    Others:

    STORAGE AND SHELF LIFE

    IOTA GF999 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from the date of manufacture.

     

    LIMITATIONS

    IOTA GF999 should not be applied:

    To the materials that bleed oils, plasticizers or solvents, such as impregnated wood, oil-based caulks

    In totally confined spaces as sealant requires atmospheric moisture for cure

    To frost laden or damp surfaces 

    For continuous water immersion

    When surface temperature below 4℃ or over 50℃

     

    HOW TO USE

    Surface Preparation

    Clean all joints removing all foreign matter and contaminants such as oil, grease, dust, water, frost, old sealants, surface dirt, or glazing compounds and protecting coatings.

     

    Application method

    Install back-up materials or joint fillers, setting blocks, spacer shims, and tapes. Mask areas adjacent to joints to ensure neat sealant lines. Primer is generally not required for non-porous surfaces, but may be necessary for optimal seal performance of certain porous surfaces. So adhesion test is always recommended.

     

    Apply IOTA GF999 in a continuous operation using dispensing guns. Before a skin forms, tool the sealant with light pressure to spread the sealant against the backing materials and joint surfaces. Remove masking tape as soon as the bead is tooled.



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