There is currently no acceptable test method to quantify prepreg tack. Current tack test methods for adhesives are not able to measure low tack values of composite prepregs. In particular, they are not able to differentiate between acceptable low tack necessary for automated fiber placement (AFP) processes versus higher tack preferred for hand layup processes. Target users will be material suppliers as QC tool.
The title and scope are in draft form and are under development within this ASTM Committee.