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LaSeal 738 Neutral High Quality Silicone Sealant

LaSeal 738 Neutral Super Non Staining Silicone Sealant is a plasticizer free neutral silicone sealant for sealing all type of joints in sanitary, glazing, facades and even in natural stone without the risk of edge soiling and staining on the substrates. Pollution-free to porous materials like marble, granite. Excellent sealing and decoration. Common silicone sealant, especially silicone weather-proofing sealant, easy to bring on pollution.

Neutral & solidified; weathering resistant; ultraviolet resistant; ozone resistant; water resistant; high and low temperature resistant.

Color:Transparent, white and other customized colors.

Packing information: 280ml, 300ml, or 310ml (net capacity), 600ml. 190L by drum

    Main purposes

    1.For sealing and bonding in kitchen, bathroom, sanitary;
    2.For anti-mildew sealing and fungal resistance;
    3.Widely used for different substrates.

    Characteristics

    1.KASTAR 738 belongs to RTV-1. Good extrusion and thixotropy between 4℃~40℃;
    2.Excellent adhesion to all type marble, granite and cement materials;
    3.Release low-molecular-weight alcohol and no unpleasant odor during cure; Excellent resistance to weather, UV, ozone, water; 5.Excellent resistance to low and high temperature change;
    4.No fragility, rigidifification or crack at -50°C, and no softening, degradation at 150°C, when cured. It always keeps good elasticity;
    5.Good compatibility with other neutral silicone sealants;
    6.Containing anti-fungal compounds to prevent mouldy growth in areas subject to high humidity levels.

    Application

    1.Cementation & seal of aluminum, glass, etc.
    2.Weathering cementation & seal of aluminum plates and enamel curtain walls.
    3.Seal & cementation of al-alloy door & window, storefront; show window, diagonal and skylight corner line.
    4.Good sealing performance for glass, glass fiber, prottery & porcelain and greaseless material.
    5. Weather sealing for stone curtain wall joints and precast slab joints.
    6. Sealing for concrete expansion joints in tunnel and pavement.
    7. Adhesion and sealing in expansion joint for ceramic engineering.
    8. Joint sealing between stone and other materials like glass, metal, plastics etc.
    9.General use in wet and humid areas
    10.where fungal resistance is a requirement.

    Technical Data Sheet(TDS)

    Technology data:The following data are only for reference purpose, not intended for use in preparing specification

    LaSeal 738 Neutral High Quality Silicone Sealant

    Testing Standard: GB/T14683-2003 《Silicone Building Sealant》

    Type

    NeutralI

    Density (g/cm3)

    1.0

    Capacity movement

    ±30%

    skin formation

    10-12 minutes

    Curing Rate (2mm/h)

    5-6

    Drying(4mm/h)

    8-10

    Max. Tensile strength

    1.8

    Hardness shore A

    28±2

    EIongation at Break(%)

    ≥500

    ModuIus Mpa(100%)

    0.60

    Application temperature

    -20 ℃ to+40 ℃

    Temperature resistance

    -50 ℃ to+ 100℃

    Adhesive

    ok

    weatherproof

    ok

    CoId-hot adhesive

    ok

    Under water adhesive

    ok

    EIasticaI Recovery (%)

    96

    Mass-Ioss Rate (%)

    15

    Skin drying time and fully drying time under: 23℃ and 50% humidity

    Limitations

    1. Can’t be used as a structural sealant.
    2. Unsuitable for all kinds of material that can effuse grease, plasticizer, or solvent.
    3. Unsuitable for the airproof location, because it is required to absorb moisture in the air to cure for the sealant.
    4. Unsuitable for frosty or moist surfaces.
    5. Unsuitable for a continually soggy or moist place.
    6. Can’t be used if the temperature is below 40°C or above 400°C on the surface of the materials.

    Instruction

    1. Clean the base material with cloth: clean it with solvent; if in particular demand, coat the surface with paint base and let it dry completely.
    2. Make sure to fill the interface with it and tightly stick it to the base material.
    3. Deal with adhesion test before use and make sure of good compatibility and viscosity of products and base material.

    Storage and shelf life

    1.They should be protected from water, frost and adverse air conditions.
    2.They should be kept dry and cool on wooden pallets at between +10 °C and +25 °C in moisture free conditions.
    3.The opened products should be consumed immediately.
    4.Shelf life is maximum 12 months conditional to complying with the aforementioned storage conditions.

    Technical Data Sheet(TDS)

    Technology data:The following data are only for reference purpose, not intended for use in preparing specification

    LaSeal 731 Middle Quality Acetoxy Silicone Sealant

    Item

    Data

    Type

    Acetoxy

    Density (g/cm3)

    0.98

    Capacity movement

    ±30%

    skinning time

    5-15 minutes

    Drying time(2mm/h)

    8-10

    Drying(4mm/h)

    18-22

    Max. Tensile strength

    1.3

    Hardness shore A

    21 Judges 2

    Elongation at Break(%)

    =500

    Modulus Mpa(100%)

    0.60

    Application temperature

    -20 C to +40 C

    Temperature resistance

    -50 C to +100 C

    Adhesive

    OK

    weatherproof

    OK

    Cold-hot adhesive

    OK

    under water adhesive

    OK

    Elastical Recovery (%)

    96

    Mass-loss Rate (%)

    35

    Limitations:The product is not applicable to structure assembly or project whose base material has a surface temperature above 40 ℃.