TAPPI Mayer Rod Drawdown Dyne Testing

The Mayer Rod Drawdown Method is an industry standard under TAPPI Test Method T 552: Determination of Wetting Tension of Polyolefin Films and Coated Surfaces via the Mayer Rod Technique. 

How to apply:
A substrate sample, usually measuring 8-1/2 x 11 inches, is clamped to a clipboard. At the top of the sample, a single drop of three (3) different level dyne solutions, which bracket the desired treatment level, are placed horizontally from each other. A #4 or #6 wire-wrapped metering rod, also known as a Mayer Rod, is then placed just above the droplets and pulled down. When a film of liquid breaks within the two second period, the tester knows that the treat level of the film is below that dyne solution level.

To learn more, view our technical paper: Buddy, Can You Spare a Dyne?