3900 Prepreg System

Toughened 3900 Prepreg System
3900 Prepreg System
Toughened 3900 Prepreg System

Toughened Prepreg System for Aerospace and Defense Applications

The highly-toughened, 350°F-cure 3900 prepreg system is ideal for use in aerospace and defense primary structures. This material allows manufacturers to replace metallic structures with composite materials for lightweighting without sacrificing performance.

A proven technology that has been in use for over 25 years, it is compatible with multiple applications, including AFP, ATL, autoclave, and hand layup. It is available in a variety of configurations, such as slit tow tape, unidirectional, and plain weave carbon and glass fabrics.

The 3900 prepreg system is an AMS product that is kept in stock and ready to ship, which means it is readily available for your time-sensitive projects.

Front view of landed airplane in Istanbul International Airport


  • Toughened material with demonstrated fatigue, impact, and environmental resistance
  • Public allowable database material
  • Flexible cure profiles for efficient productions systems
  • Convergent Raven database for cure cycle simulation
  • Uniform resin content and no-bleed resin system enabling predictable parts thicknesses
  • Freezer life of 24months @ <10°F (-12°C)
  • Off-the-shelf, readily available


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