Tom Rummage and Darryl Peterson discuss the subtle requirements and effects involved when using a coating to smooth the bonding surface on a rough specimen (like concrete) prior to strain gage installation.
Porous Surface Installation.
https://www.strainblog.com/tips/porous-surface-installation
Surface Preparation for PVC and Rubber Specimens.
https://www.strainblog.com/tips/surface-preparation-pvc-and-rubber-specimens
"Ph" of the Bonding Surface.
