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  • IOTA 999 silicone structural sealant

    IOTA 999 silicone structural sealant

     

    COLOURS:

    IOTA 999 is available in black, gray, and white. 

     


    FEATURES

    1. One part, neutral cure to form an extremely tough elastomeric rubber ensuring a durable, flexible, and watertight bond 

    2. Non-corrosive

    3.Excellent resistance to temperature extremes, unaffected performance from –50 ℃ to +150 ℃
    4. Excellent weatherability and high resistance to ultra-violet radiation, heat and humidity, and ozone

     

    PACKAGING:

    IOTA 999 is available in disposable cartridges (net 300ml) and sausages (net 590ml)

     

    SPECIFICATIONS

    IOTA 999 is designed to meet or even exceed the requirements of Chinese national specification GB16776-2005 Silicone Sealant for Structural Glazing 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

    1.6

    GB/T 13477 (ASTM D 2377)

    Tack free time

    h

    ≤3

    1.0

    GB/T 531.1 (ISO 7619)

    53113477

    Hardness

    Shore A

    2060

    49

    GB 16776 (ASTM C 792)

    Heat Aging

     

     

     

    weight loss

    %

    ≤10

    3.6

    cracking

     

    Nil

    Nil

    chalking

     

    Nil

    Nil

    GB/T 13477 (ISO 8339)

    Tensile strength

    MPa

     

     

     

    23℃

     

    ≥0.60

    1.08

    90℃

     

    ≥0. 45

    0.90

    -30℃

     

    ≥0. 45

    1.66

    water immersion

     

    ≥0. 45

    1.12

    water-UV exposure

     

    ≥0. 45

    1.03

    adhesion failure

    %

    ≤5.00

    0

    extension rate at ultimate tensile strength at 23℃

    %

    ≥100

    220

     

    STORAGE AND SHELF LIFE

    IOTA 999 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 999 should not be applied:
     To frost laden or damp surfaces 

     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

    For continuous water immersion

    When substrate surface temperature below 4℃ or over 50℃

      

    Surface Preparation

    Clean all joints removing all foreign matter and contaminants such as oil,surface dirt , water, frost, old sealants, ,grease, dust or glazing compounds and protective 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 999 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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