Durometer Gauge – The Essential Urethane Quality Control Tool
Next to material selection, durometer is one of the most critical aspects of urethane performance. Durometer can be directly linked to most performance problems and service life reduction issues. For this reason we recommend urethane durometer be included in any quality control program.
Durometer will also play a significant role in abrasion resistance, compression set, tensile and tear strength, resiliency and chemical resistance of urethanes. Pleiger Plastics Company manufactures polyurethanes in five point durometer increments to provide each specific application the best choice of hardness.
Shore A is most accurate between 20A and 90A. For harder durometers use the D scale. For softer durometers use the 00 scale.
USING YOUR DUROMETER
While using a durometer gauge may appear simple, there is actually a technique required to get accurate and meaningful test results. Before attempting to test specimens with irregular surfaces, it is recommended to practice on the flat surface of a known sample. For best results your specimen should be at least 1/4-inch thick with a room temperature of 70°F. One technique to use for practice is holding your durometer on a flat glass or steel surface; the durometer should indicate 100A. If you are unsure about your durometer gauge’s function please contact us at 1-800-PLEIGER.
Place the specimen on a firm flat surface. Hold the durometer vertically with the presser foot on edge.
Gently roll the durometer and stand it upright so the pressure foot rests flat on the specimen surface.
Contact Plegier Plastics today to learn more about a durometer gauge.