AMS 3970/4 specifies the batch release and delivery requirements for film adhesive used for repair. This specification is applicable when the film adhesive is part of the prepreg system as defined in AMS 3970 and AMS 3970/1. This specification relates to qualified adhesive films listed in the associated QPL.
SAE AMS3970/4-1999 history
2016SAE AMS3970/4A-2016 Carbon Fiber Fabric Repair Prepreg, 120 °C (250 °F) Vacuum Curing Part 4 - Purchasing Specification for Film Adhesive
2011SAE AMS3970/4A-2011 Carbon Fiber Fabric Repair Prepreg, 120°C (250°F) Vacuum Curing Part 4 - Purchasing Specification for Film Adhesive
1999SAE AMS3970/4-1999 Carbon Fiber Fabric Repair Prepreg, 125 Degrees Celsius (250 Degrees F) Vacuum Curing Part 4 - Purchasing Specification for Film Adhesive adhesive