Preimpregnated Products – Prepregs

SGL Group operates the most up-to-date facilities for the production of pre-impregnated materials. Our unidirectional SIGRAFIL® prepregs are based on carbon fibers, and our SIGRATEX® fabric prepregs are made from carbon fiber fabrics.
By acquiring epo gmbh and the prepregs brand PREDO®, we have expanded our product portfolio as well as our core competency in the field of pre-impregnated materials.

  • SIGRATEX® fabric prepregs
  • SIGRAFIL® unidirectional prepregs
  • PREDO® prepregs 

The fiber type is the main factor determining the strength, Young's modulus and other important properties of fiber composite products. The reinforcement fibers are precisely aligned and economically combined with the resin matrix.

Our standard resin systems:

Resin Type Curing temperature (°C) Tg C°
Epoxy E 201 130 120
  E 022 130 150
  E 030 170 180
  FT105 70-120 120
  FT102 80-160 120
  FT109 80-160 120
Phenolic P 011 130 200
More resin systems available upon request.

 

Typical properties of prepregs:

  • hot melt systems
  • solvent-free
  • long shelf life
  • high surface finish of component
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