The Portable Contact Angle Meter

The PGx is a fully automated Portable Contact Angle Meter that measures surface wetting and absorption in-situ on virtually any size or shape of surface.

With a footprint of only 90mm x 55mm and weighing just 400g, it is the smallest contact angle meter available, with features previously found only in larger laboratory instruments. The PGx enables direct surface testing of almost any 3D object without having to cut the sample to fit. Simply place the PGx Portable Contact Angle Meter on your sample or part and press a single button . The PGx automatically delivers a precisely calibrated drop onto the surface and the built in camera captures a video sequence of the surface wetting at a rate of 80 frames per second. The results are displayed as a static contact angle or dynamic wetting as a function of time, providing detailed information about the liquid/substrate interaction in a truly portable instrument.

PGX portable Contact Angle meter:

The PGx Portable Contact Angle Measurement Meter is trusted in a wide range of industries and especially suited to the evaluation of samples both before and after plasma treatment, being fully compliant with official test methods ASTM D-724 and ASTM D-5946.

  • 0.2uL to 10uL droplet size
  • Touch down, impact and manual drop application modes
  • Built in, automatic calibration
  • Automatic sampling in both Static and Dynamic modes
  • adhesion (gluing, bonding)
  • absorption
  • surface contamination (cleaning)
  • wettability (printing, painting, coating)


Static Contact Angle Measurement Mode

Static Contact Angle is primarily used to determine the wetting characteristics of a substrate to check surface treatment, cleanliness and/or contamination effects. The purpose of this test is to determine the highest possible contact angle at “equilibrium”.


Dynamic Contact Angle Measurement Mode

In this test mode a sequence of images is automatically captured as soon as the falling droplet arrives on the specimen surface. Each recorded image is analysed and the result is presented as a curve showing the dynamic change in contact angle (wetting), volume (absorption) and spreading as a function of time. This test is particularly useful for troubleshooting problems related to dynamic processes such as printing, gluing and coating applications.