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Ebalta Kunststoff Gmbh Company Logo

Ebalta Kunststoff Gmbh GH 705TL 1

Ebalta GH 705/TL-1 is a thick-castable, aluminum-filled, heat-resistant, two-components epoxy resin, which shows aluminum-like properties after curing at room temperature. Due to high aluminum contents GH 705/TL-1 shows good thermal conductivity, is well workable and has a low linear expansion coefficient. A thickness of about 30 mm can be casted, by adding massive aluminum granules thicknesses of more than 100 mm can be casted. Maximum thermal stability of thin-wall casting parts is reached after immediate thermal treatment of 12-15 hrs. at 50-60°C after curing at room temperature. The thermal treatment can also be made by slow heating up to working temperature. At a casting thickness of more than 80 mm an automatic thermal treatment happens by formation of heat of reaction.

Polymer Name: Epoxy Resins & Compounds

Processing Methods: Injection Molding, Reaction Injection Molding (RIM)

End Uses: Foundry Dressings, Tooling

Flexural Strength: 90.0 - 100.0 MPa

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family

    Epoxy & Epoxy Derivatives

    Fillers Included

    Aluminum

    Polymer Name

    Epoxy Resins & Compounds

    Plastics & Elastomers Functions

    Resin

    Technologies

    Plastics

    Product Families

    Plastics — Thermoset Resins

    Epoxies

    Basis

    Heat resistant tooling resin

    Features & Benefits

    Materials Features

    Good Thermal Conductivity,

    Very Good Heat Resistance

    Properties

    aluminum-like
    high heat resistance

    Applications & Uses

    Markets

    Industrial

    Applications

    Industrial — Chemical & Industrial Manufacturing

    Tooling & Moldmaking

    Plastics & Elastomers End Uses

    Foundry Dressings,

    Tooling

    Plastics & Elastomers Processing Methods

    Injection Molding,

    Reaction Injection Molding (RIM)

    Applications

    PU-foaming tools
    RIM foam tools
    Vacuum forming tools
    Heatable foundry patterns

    Processing Instructions

    The temperature of material and processing should be between 18 and 25° C.
    Filled systems should be stirred thoroughly before use.
    After each use the containers have to be closed again.
    Porous mold surfaces should be sealed before ( ebalta sealant ).
    For an optimum mold release we recommend a suitable release agent (e.g. T 1-1) which can be easily applied with a brush.
    The mold should be treated 2 or 3 times with release agent and allowed to evaporate for approx. 20 min after every application.
    Mixing ratio resin/hardener according to instructions!
    To get a clean component part , we recommend upward flow casting and to take care of sufficient venting.
    Resin residues at stirring rods and so on can be easily cleaned with our ebaclean.

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    Shore hardness86 ± 3Shore DDIN ISO 7619-1
    Viscosity (25°C)4000 ± 500mPa.s-
    Coefficient of thermal expansion (10 - 80 °C)6310-6K-1-
    Density (20°C)1,70 ± 0,05g/cm3-
    Compressive Strength85 ± 5MPaEN ISO 604
    Pot Life (200g/20°C)65 - 75minutes-
    Flexural elongation at break2.00 ± 0.2%EN ISO 178
    Curing time at RT16 - 24Hrs-
    Flexural modulus6700 ± 300MPaEN ISO 178
    Post Curing8 - 12 ( 60 - 80)Time in h (Temperature in °C)-
    Flexural strength95 ± 5MPaEN ISO 178
    Heat resistance (HDT)91 ± 3°CDIN EN ISO 75 B
    Impact resistance (Charpy)14 ± 3kJ/m2EN ISO 179

    Packaging & Availability

    Sales units (packages)

    Units

    • Resin GH 705 8,000 kg / 20,000 kg
    • hardener TL-1 0,975 kg / 5,000 kg´/ 50,000 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.
    • Shelf life: see labels