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GMS Composites BP – 190

Producer:  GMS Composites
GMS Composites BP-190 is a formulated Bismaleimide matrix prepreg, with long out life. The product is suitable for continuous use up to 200°C. BP-190 has been developed for the manufacture of high performance composite tools. After initial curing in an autoclave the tool can be demoulded and cured in a fan forced oven as a free standing component.
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Identification & Functionality


Features & Benefits

Product Highlights
  • Heat performance up to 300°C
  • Long term service life to 200°C
  • Good toughness
  • Excellent Mechanical properties at ambient and elevated temperatures
  • Good humidity resistance
  • Closely matches thermal expansion of composite parts
  • Made in Australia

Applications & Uses


BP-190 can be used to produce advanced composite structures and tools with carbon. It can be used in areas where high temperature resistance is crucial and is suitable to produce large, complex structures as well as small basic components.


Cured Properties
ValueUnitsTest Method / Conditions
Short Beam Shear Strength 25°C122MPa-
Short Beam Shear Strength 177°C dry82MPa-
Short Beam Shear Strength 177°C wet (2 weeks at 70°C, 95% R.H.)53MPa-
Short Beam Shear Strength 232°C dry78Mpa-
Flexural Strength 25°C1860Mpa-
Flexural Strength 177°C dry1510Mpa-
Flexural Strength 177°C wet (2 weeks at 70°C, 95% R.H.)1120Mpa-
Flexural Modulus 25°C145Mpa-
Flexural Modulus 177°C dry145Mpa-
Flexural Modulus 177°C wet (2 weeks at 70°C, 95% R.H.)150Mpa-

Technical Details & Test Data


The versatility of GMS Composites BP-190 means a range of cure cycles, pressures and ramp up rates can be adopted all of which will depend greatly on the part being produced. Below shows the effect temperature and time has on the properties of the materia

Temperature (°C) Time Tg (°C) - DSC7
200 2 hrs 165
200 6 hrs 220
200 10 hrs 235
250 2 hrs 280
250 4 hrs 300
 250 6 hrs 310
  • Heat ramp up rate – 2°C / min
  • Pressure – 1 bar
Gel Time

Hot plate

Temperature (°C) Time
100 1000
150 60 - 100
200 3 - 5
250 < 1 min

Values are indicative of small samples of neat resin formulation. Gel times may vary significantly in composites depending on fibre content and laminate thickness.


Storage & Handling


Customers should ensure appropriate workplace OH&S guidelines are followed when working with this product. Appropriate measures should be taken to avoid contact with skin and eyes. Avoid inhalation of dust or fumes that may be released or created when machining, cutting or curing.

  • Do not store this product below 1°C.
  • Do not freeze this product.
Shelf Life
  • Room temperature (23°C) > 4 weeks
  • Cool room (1°C – 5°C) > 6 months
    Do not store below 1°C

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Technical Data Sheet
GMS Composites BP – 190
BP – 190 Technical Data Sheet
Technical Data Sheet
Products: GMS Composites BP – 190
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