Carbon Fiber Fabric Repair Prepreg, 120 °C (250 °F) Vacuum Curing, Part 2 - Qualification Program for Fiber, Fabric, Carbon Prepreg, Film Adhesive, and Non-Structural Glass Prepreg
STANDARD published on 1.7.2026
Designation standards: SAE AMS3970/2B
Publication date standards: 1.7.2026
Country: American technical standard
Category: Technical standards SAE
AMS3970/2B gives specific information about the qualification program for carbon fiber fabric reinforced epoxy structural repair prepreg systems, curing under vacuum at 120 °C (250 °F), and a companion non-structural glass fabric prepreg used for repair of carbon fiber reinforced epoxy structures. The prepreg system shall include an epoxy film adhesive to be applied in a co-curing process with the prepreg for joint solid laminate and sandwich bonding.
SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Material Specification