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Body sealant in Mumbai| Supex PU 40


Selflex PU 40 is a versatile Polyurethane Adhesive & Sealant. It is used for bonding & sealing operations in the Industrial manufacturing and construction industry.

Bonding metal to metal, FRP, Wood, glass etc used in Bus bodybuilding, Elevators, HVAC, train coaches. Also used for bonding/sealing, sound deadening spot welded seam joints.

Construction joint sealing like expansion joints, transition joints, roof sealing, crack sealing on external/ internal walls.


    PU 40, Body Sealant in Mumbai

    Product Description

    Body sealant in Mumbai, Supex  PU  Sealant 40  is  a  single-component,  moisture  curing,  polyurethane-based  sealant material used for metal to metal bonding for bus body applications.


    • One-component.
    • Easy application with gun.
    • Thixotropic.
    • Cures with the humidity in the air.
    • Paintable
    • No volume change.
    • Resistant to weather conditions and water.
    • Permanent elasticity.
    • No over joint expansion-bubble free curing

     Technical Information

    1. Chemical Base:                                                 Polyurethane
    2. Curing Mechanism:                                        Atmospheric Moisture
    3. Specific gravity(DIN 53479)                         1,15 ± 0,03 g/cm3
    4. Tack free time:                                                60-90 min.
    5. Cure Rate                                                           2 mm/24 hour
    6. Hardness (ASTM D 53505):                         40±5 Shore A
    7. Elongation at Break(DIN 53504):             ≥ 500%
    8. Modulus 100 % (DIN 53504):                       >0,4 Mpa
    9. Tensile Strength:                                            10  N/mm

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    How to use bus body sealant Supex PU 40 

    Application Temperature:           +5 °C to +35 °C

    Temperature Resistance:             -30 °C to +80 °C

    The application surface must be solid, clean, dry and free of dust, oil and grease. Apply a primer if      necessary. If necessary, rub down metal surfaces before usage. Allow the substrate to dry after degreasing.

    It is recommended to clean concrete with a metal brush.

    Best Body Sealant in Mumbai

    • Is capable of adhesion to cement-based building materials, brick, ceramic, marble, glass, wood, galvanize steel, aluminum and most plastic surfaces.
    • Used in construction industry, in the cavities of the joints between building elements
    • Used for joints and assembly of aluminum, PVC, wooden framing
    • Used for laying of roof tiles

    Uses of PU 40 sealant

    • Can be applied by a manual or pneumatic gun.
    • After application, it is needed to smooth the joint with soapy water.
    • It is suggested to use cartridge or sausage in 24 hours after opening .
    • Do not apply at a temperature under 5 °C.
    • In cold weather, store the packages at about 20 °C before use.
    • Supex PU 40  can not be used on bituminous substrates, natural rubber, EPDM rubber or on building materials which might bleed oils, plasticizers or solvents which could attack the sealant.
    • If there is a moisture-vapor-transmission condition exists from the substrate as this can caus bubbling within the sealant.
    • Opened cartridges should be used the same day.
    • During application, avoid air-entrapment
    • There can be slightly color change in white and grey shades when exposed to ultraviolet rays.
    • Avoid contact with alcohol and other solvent cleaners during cure.
    • Maximum depth/width of sealant must not exceed 12 mm; minimum is 5 mm.


    Tools can be cleaned with alcohol or acetone before the sealant has completely cured. After curing, abrasion is necessary.

    Chemical Resistance

    Resistant to water, seawater, diluted alkalis, cement grout and water dispersed detergent. Not   resistant   to   alcohols,   organic   acids,   concentrated   alkalis   and   concentrated   acids, chlorinated (hydro-carbons) fuel.


    In  600 ml aluminum sausage


    White, Grey, Black and various colors

    Shelf Life

    Store the product in a cool and dry place. The shelf life is 12 months at temperatures between +5°C and +25°C.


    Keep out of reach of children. Avoid contact with skin and eyes. Use in well-ventilated places. Don’t breathe vapors. Do not smoke when using the product.

    Health and Safety

    For  more  information  and  advice  on  the  safe  handling,  storage  and  disposal  of  chemical products, users shall refer to the most recent Material Safety Data Sheet containing, physical, ecological, and  toxicological and other safety related data.

    Weight1 kg
    Dimensions16 × 5 × 5 cm


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