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Kemrock Industries and Exports KPR 6440

KPR 6440 by Kemrock Industries and Exports is a general purpose, fire retardant orthophthalate-based unsaturated polyester resin (UPR). It is available as liquid and cast resin. Offers excellent mechanical and corrosion resistance properties. KPR 6440 is recommended for FRP composites.

Polymer Name: Thermoset Polyester

Chemical Family: Polyesters, Unsaturated Polyester (UPE)

Density: 1170.0 - 1170.0 kg/m³

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    Identification & Functionality

    Composite Materials Functions
    Plastics & Elastomers Functions
    Product Type

    UPR (Unsaturated Polyester Resin)

    Features & Benefits

    Key Features
    • Excellent Mechanical Properties.
    • Good Corrosion Resistance.
    • General purpose.
    • Flame Retarded.

    Applications & Uses

    Plastics & Elastomers End Uses

    Properties

    Physical Form
    Appearance
    Opaque
    Physical Properties
    ValueUnitsTest Method / Conditions
    Viscosity (25°C, Liquid resin)1200.0cP
    Specific Gravity (25°C, Liquid resin)1.17
    Acid Value (Liquid resin)24.0mg KOH/gm
    Volatile Content (Liquid resin)30.0%
    Gel time (25°C, Liquid resin: 100gms, Cobalt octoate (3%) 1.0mL and MEK (50%) 1.5mL)15.0min
    Water Absorption (Cast resin)30.0mg
    Mechanical Properties
    ValueUnitsTest Method / Conditions
    Barcol Hardness (Cast resin)40.0
    Tensile Strength (Cast resin)400.0Kg/cm2
    Flexural Strength (Cast resin)900.0Kg/cm2
    Thermal Properties
    ValueUnitsTest Method / Conditions
    Heat Deflection Temperature (Cast resin)62.0°C