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  • IOTA 882 Silicone Insulating Glass Sealant

    IOTA 882 Silicone Insulating Glass Sealant 

    Special for the secondary seal of insulating glass units used for window and door etc.

     

    Features

    1.Two part, neutral fast cure rate, suitable for factory application  

    2. High level of tensile strength and mechanical properties

    3. Excellent adhesion to a wide range of substrates including coated glass, low -E glass, tempered glass, laminated glass, aluminum and steel spacers etc.

    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 Good compatibility with other neutral silicone sealants

     

    COLOURS

    Part A (base) of IOTA 882 is available in white, part B (curing agent) in black, black color after mixing.

     

    PA    C                    PACKAGING

    IOTA 882 is available in kit: part A in 200L drums (net 180L), part B in 20L pails (net 18L).

     

    SPECIFICATIONS

    IOTA 882 is designed to meet or even exceed the requirements of Chinese corporate specification Q/71304249-7.004-2009

     

    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 9048)

    Working time

    (after 20 min.)

    s

    ≤10

    1.4

    GB/T 13477(ASTM D 2377)

    Tack free time

    h

    ≤3

    1.0

    GB/T 531.1 (ISO 7619 )

    53113477

    Hardness

    Shore A

    3060

    47

    GB/T 13477

    Tensile strength

    MPa

    ≥0.6

    1.2

    GB 16776

    Adhesion failure

    %

    ≤10

    0

    GB 16776 (ASTM C 792)

    Heat aging

     

     

     

    weight loss

    %

    ≤10

    4.5

    chalking

     

    Nil

    Nil

    cracking

     

    Nil

    Nil

     

     

    STORAGE AND SHELF LIFE

    IOTA 882 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 882 should not be applied:

    For structural glazing;

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

    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 protective coatings.

     

    Mixing and Dispensing

    To obtain the optimal performance of IOTA 882, it is recommended that base and curing agent thoroughly mixed using a two-part silicone dispensing machine.

    IOTA 882 should be mixed at a ratio of 9:1~11:1 base to curing agent by volume, or 11:1~13:1 base to curing agent by weight for optimal performance. 

    Lot matching of IOTA 882 base to curing agent is not required. Before use, it is recommended that curing agent be stirred to ensure the homogeneity of all components.

    IOTA 882 part B curing agent will react with atmospheric moisture, therefore should not be exposed to air for prolonged periods of time. 

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