The strengths above are based on 1/2" diameter Pull-Stubs. If you are using any other sized stub, please contact us prior to purchasing a piston to make sure you will be testing in the range desired. Each piston comes with the gasket(s) required prelubricated and installed.

The F-8/12 (F-20) Piston the largest piston we stock at SEMicro. This piston is like having 3 pistons in 1: an F-8, an F-12 and combined as an F-20. This piston is great if you will be testing many different coatings with different adhesion characteristics. It provides the most flexibility of any piston in our line.