PTC® Instruments manufactures and calibrates durometers to ISO 17025.

We offer calibration, repair and certification services. We manufacture durometers to meet or exceed ASTM D2240 standards. Our sales department will help you determine the correct durometer for your application. We offer material testing to determine the correct durometer type and style for your application at no charge. PTC®

PTC® Instruments manufactures ASTM Type A, B, C, D, DO, E, M, O, OO, OOO, OOO-S, Asker C and F

Click on the image links below to shop the many types and styles of durometers and stands manufactured and calibrated by PTC®

PTC® Durometer Styles

306L-Type-Shore-A-Scale-Durometer-PTC-Instruments Shore-A-Scale-Ergo-Durometer-408-PTC-Instruments Durometer-Hardness-Tester-Shore-A-Scale-PTC-Instruments

Durometer-Pencil-Style-Shore-D-Scale-PTC-Instruments Digital-Durometer-e2000-PTC-Instruments Digital-Durometers-ASTM-Type-O-Pencil-Style-PTC-Instruments

Durometer Type M with Stand Type M Durometers are intended for the testing of specimens having a thickness or cross section diameter of 1.25mm (0.050 in.)

PTC®'s Specialty Durometers Available Now Order by 1:00pm Pacific and we will ship the same day.

PTC®'s 414CF ASTM F1957 Composite Foam Durometer

The PTC® Model 414 Type CF Durometers are manufactured and designed to measure the indentation hardness of all generations of foam products: Freon Blown types, Water Blown types and new Composite Foams.

PTC®'s 414USG Drywall Durometer

PTC®'s Model 414USG Durometer measures hardness of drywall sheets during processing. Drywall can be checked for proper curing before the cutting stage.

PTC®'s 302SL Foam & Sponge Rubber Durometer

The Model 302SL is a hand-held foam and sponge rubber hardness tester made exclusively by PTC® Instruments. The instrument has the capability to economically test the same type of material checked with an ILD tester. There is no direct conversion from the 302SL scale to ILD readings, however, the 302SL can be used for comparative testing.

PTC®'s Crab & Lobster Shell Durometers

Developed with the Alaska Dept. of Fish and Game and the Canadian Department of Fisheries and Oceans
  • Used by Fish and Game to Enforce Fishing Regulations.
  • Used by Marine Biologists for Crab Fisheries research.
  • Accurately measures shell hardness
  • Magnetic Max Hand
  • NIST Traceable Certification Available

PTC®'s Renfro Durometer

Developed for National Association of Hoisery Manufacturers (NAHM)


PTC®'s Racing Tire Durometer

This durometer specifically tailored to measuring racing tire hardness. The Model 306RL durometer is the first choice for use by tire manufacturers, technical inspectors, race teams, and engineers fast and accurate tire hardness.