PG-3 is a video-based instrument that automatically record the interaction of the droplet and the material surface to measure contact angle (wetting), volume (absorption) and base width (spreading) of the droplet as a function of time. The integrated camera captures 15 images per second providing real time determination of the dynamic contact angle and the static contact angle rate of change over time. The PG-3 has a built-in micro pump to apply the droplet.