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Raptor Resins BMI-2

Raptor Resins BMI-2 grade from Raptor Resins, is its low-temperature cure.

Polymer Name: Polybismaleimide

    Knowde Enhanced TDS

    Identification & Functionality

    Polymer Name
    Composite Materials Functions
    Plastics & Elastomers Functions

    Features & Benefits

    Product Higlights

    Most BMI resins are cured at 440-480°F. The BMI-2 version cures at 325°F, which reduces process time. Despite the lower cure, the resin has a glass-transition (Tg) temperature of 700°F., as measured by dynamic mechanical analysis. The Tg of most BMI grades is 520-530°F., Repecka claims. “The Tg temperature of BMI-2 is not only much higher than that of other BMI resins, but greater than most polyimides that are formulated for use at higher temperatures than BMI.”

    These new polymers can also be used to lower the cost of making high-temperature (500ºF) composite parts, without compromising performance and actually improve performance in areas.

    Features
    • High purity
    • Low thermal conductivity
    • Maximum continuous service temp up to
    • PSI ranging from 37,000 – 45,000
    • 40 cPS viscosity at 275°F
    • Gel time 40 min 275°F
    • Low viscosity during processing
    • Low tack solid at room temperature
    • Crushed or solids
    • 325°F cure temp
    • Tg temperatures above 700°F
    • Finished hardness.
       

    Applications & Uses

    Cure Method
    Plastics & Elastomers End Uses

    Properties

    Physical Form

    Storage & Handling

    Shelf Life

    365 day shelf life