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Ebalta Kunststoff Gmbh Company Logo

Ebalta Kunststoff Gmbh GM 987Comp. A+B

GM 987 Comp. B (Amine) can be subject to color variations due to raw materials, but these color variations have no influence on the quality and the properties of the product. The postcured material is not UV stable and darkens by and by. However according to our experience the change in color does not affect its utilizability. The mechanical properties will be reached after 7 d at room temperature or post curing of 8 h at 80°C. As bonding agent on aluminum support we recommend our PU coupling paste KP 8.

Polymer Name: Polyurethane (unspecified)

Processing Methods: Casting

End Uses: Foundry Dressings

Density: 1120.0 - 1160.0 kg/m³

Tensile Strength: 26.0 - 32.0 MPa

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family

    Polyurethanes (PU)

    Polymer Name

    Polyurethane (unspecified)

    Plastics & Elastomers Functions

    Resin

    Basis
    PU casting resin
    Technologies

    Plastics

    Product Families

    Plastics — Thermoset Resins

    Polyurethanes

    Features & Benefits

    Materials Features

    Abrasion Resistant,

    Flexible,

    High Hardness

    Properties

    excellent abrasion resistance
    hard flexible
    no brittleness phase
    well castable
    Shore D hardness approx. 65

    Applications & Uses

    Markets

    Building & Construction,

    Industrial

    Applications

    Building & Construction — Building Materials

    Interior Fixtures

    Industrial — Chemical & Industrial Manufacturing

    Tooling & Moldmaking

    Plastics & Elastomers End Uses

    Foundry Dressings

    Plastics & Elastomers Processing Methods

    Casting

    Applications

    Foundry patterns
    Pattern plates
    fixtures
    Core boxes

    Processing Instructions
    • Material- and processing temperature: between 18 - 25 °C.
    • Close containers after use.
    • Seal porous mold surfaces first (ebalta mold sealer).
    • For optimum mold releasing we recommend a special release agent (like T1-1), which can be applied easily with a brush or be sprayed. Releasing of the mold 2-3 times, evaporate for about 20 min. after each releasing.

    Mixing ratio resin/hardener according to instructions.

    • Stirring rods etc. with residual resin can be easily cleaned with ebaclean.

    Important processing instructions:

    • B comp. (amine) must be stirred in and carefully mixed into A comp. (isocyanate). The material must be free of streaks.
    • Before use you have to stirr up / shake the thinliquid comp. B.

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    Wear jet test15W(V/t) [mm³/min]—
    Viscosity (25°C)7700 ± 300mPa.s—
    Elongation of tensile strength260 ± 40%—
    Density (20°C)1,14 ± 0,02g/cm3—
    Flexural enlongation at flexural strength8.6 ± 0.2%EN ISO 178
    Pot Life (200g/20°C)14 - 17minutes—
    Flexural modulus470 ± 25MPaEN ISO 178
    Curing time at RT16 - 18Hrs—
    Flexural strength18 ± 0.3MPaEN ISO 178
    Shore hardness65 ± 2Shore ADIN ISO 7619-1
    Tensile strength29 ± 3kN/m—

    Packaging & Availability

    Packages
     Comp. A   GM 987 Comp. A (ISO)   4,000 kg 
     Comp. B   GM 987 Comp. B (AMIN)   0,840 kg 

     

    Storage & Handling

    Storing

    Storage at room temperature 18-25 °C.
    Opened containers should be closed immediately after use and should be used up as soon as possible.