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Product description

SF-4 is a BMI syntactic film that provides excellent elevated temperature properties and compatible to RS-8HT. SF-4 is available in unsupported or supported continuous film form in various thicknesses from 0.25–2.5 mm (10 mils–100 mils). SF-4 has been evaluated and qualified in aerospace structures.

Product benefits/features

  • Low density 0.62 g/cc (39 pcf)
  • Compatible with RS-8HT and other BMI systems

Market segments

  • High Temperature
  • Space & Satellite
  • Aerostructures
  • Radome


Product category Syntactics
Processing Out of Autoclave / Vacuum bag
Post curable
Resin type BMI
Tg (Dry, onset) 295 °C / 563 °F
Cure temperature (Optimal) 204 °C / 399 °F
Cure temperature (Lowest)204 °C / 399 °F
Cure temperature (Highest)204 °C / 399 °F
Out life 14 days
Post curable

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