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Ebalta Kunststoff Gmbh MG 804Comp. A+B

This product is a polyurethane system. The processing is preferably made in customary vacuum pouring plant. Manual processing possible. Maximum wall thicknesses of the parts: from 5 – 10 mm.

Polymer Name: Polyurethane (unspecified)

Processing Methods: Casting

End Uses: Modeling Material

Density: 1080.0 - 1120.0 kg/m³

Tensile Strength: 50.0 - 60.0 MPa

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    Plastics & Elastomers Functions
    Basis
    Prototype casting resin 804
    Technologies

    Features & Benefits

    Materials Features
    Properties

    long potlife
    very well castable
    good impact strength
    easily dyeable
    low agressivenes against silicones
    RoHS conform

    Applications & Uses

    Markets
    Plastics & Elastomers End Uses
    Plastics & Elastomers Processing Methods
    Applications

    High quality prototypes, like ABS
    High quality prototypes, like PA

    Processing Instructions

    Stir up comp. A before use, since additives tend to sedimentation. Higher heat resistance is reached with MG 804-1.
    To get a better E-modulus, e.g. more stiffness of the parts glass fiber paste MG 804 GF could be used.
    With only this product the maximum stiffness can be achieved. Due to higher viscosity the casting has to be made in a vacuum chamber.
    Further data sheets:

    • MG 804 /MG 804-1;
    • MG 804 GF/MG 804-1;
    • MG 804 , MG 804 GF/MG 804-1

    Processing parameters: Temperature of resin: 20-30°C / Temperature of mold: 60 - 70°C.
    In order to get bubble-free parts, we recommend working under vacuum.
    Straight before casting, we recommend a one-time air impact from 10 of 60-70 mbar.
    Mouldmaterial: we recommend silicone molds, for example Silastic® RTV 4234-T4

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    TG in TMA TG82°C
    Density (20°C)1,10 ± 0,02g/cm3
    Elongation of tensile strength8 ± 2%
    Pot Life (20°C)10-13minutes
    Flexural elongation at break6.2 ± 0.2%EN ISO 178
    Curing time at RT45 - 60Hrs
    Flexural modulus2270 ± 150MPaEN ISO 178
    Post Curing4-60Time in h (Temperature in °C)
    Flexural strength90 ± 5MPaEN ISO 178
    Heat resistance (HDT)71 ± 2°CDIN EN ISO 75 B
    Impact resistance (Charpy)39 ± 6kJ/m2EN ISO 179
    Linear shrinkage0.1%
    Shore hardness78 ± 2Shore ADIN ISO 7619-1
    Tensile strength55 ± 5kN/m

    Regulatory & Compliance

    Certifications & Compliance

    Packaging & Availability

    Packages
     Comp. A   MG 321 FR Comp. A (polyol)   5 kg / 20 kg 
     Comp. B   MG 321 FR Comp. B (isocyanate)   10,000 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.