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The PTC Model 307L Durometer Shore D Classic Style is the industry standard for testing Pipeline Coatings.

Most pipeline coatings are rigid and require a Shore D Durometer, such as the PTC 307L.

<Durometer measurements are often specified in pipeline coating documents to ensure that the coating meets the required performance criteria for mechanical resistance, abrasion resistance, and impact resistance.

Please take a look at our Portable Steel Hardness Tester.

The Portable Steel Hardness Tester

Measures the hardness of metals in the range of 20 to 65 HRC on the equivalent Rockwell C Scale. The instrument is fully portable and easy to use. It can easily be carried anywhere an accurate hardness test is required.

PTC IVF Thermometers are designed for hospitals, IVF clinics, and embryology Labs.

Maintaining a steady temperature of 37°C in a stable environment improves outcomes for human oocyte and embryo development.

PTC® Industrial Rail Thermometers are designed to measure surface temperatures for continuously welded or jointed rails. These thermometers meet the criteria outlined in the AREMA specification for track maintenance.

National Institute of

Standards and Technology

PTC Metrology™ offers NIST-traceable calibration and certification services.

durometer hardness chart

Video: How to use a Durometer

Typical Examples of Materials Tested with a Durometer

A Scale Durometers | Soft Vulcanized Rubber, Natural Rubber, Nitriles, Thermoplastic Elastomers, Neoprene, Polyurethane, Silicone, Flexible Polyacrylics and Thermosets, Gaskets, White PVC, Printing Rollers, Wax, Felt, and Leathers | Durometer Hardness 20-90 A

B Scale Durometers | Moderately Hard Rubber, Skate Wheels, Printing Platen, Thermoplastic Elastomers, Paper Products, and Fibrous Materials | Durometer Hardness Above 90 A | Below 20 D

C Scale Durometers | Medium-Hard Rubber, Elastomers, Medium-Hard Plastics, and Thermoplastics | Durometer Hardness Above 90 B | Below 20 D

CF Scale Durometer | Composite Foam such as amusement ride safety cushions, vehicle seats, dashboards, headrests, armrests, and door panels | ASTM F1957

D Scale Durometers | Pipeline Coatings, Hard Rubber, Acrylic, Delrin, Kevlar, PVC, Nylon, Harder Plastics, Rigid Thermoplastics, Lexan and Epoxies. | Durometer Hardness Above 90 A

DO Scale Durometers | Fire Proof Coatings, Moderately Hard Rubber, Medium Print Rollers, Elastomers and Dense Textile windings | Durometer Hardness Above 90 C | Below 20 D

E Scale Durometers | Medium Density Textile Windings, Soft Rubber, Foamed Elastomers, Wound Threads, Yarn Packages.

M Scale Durometers | O-rings,Thin Pieces of Rubber, Thermoplastic Elastomers, and Plastic Specimens |Durometer Hardness 20-85 A

O Scale Durometers | Soft rubber, Thermoplastic Elastomers, Very Soft Plastics, Thermoplastics, and Medium-Density Textile Windings | Durometer Hardness Below 20 DO

OO Scale Durometers | Extremely Soft Rubber, Thermoplastic Elastomers, Sponge, Extremely Soft Plastics and Thermoplastics, Human & Animal Tissue, Foams, Low-Density Textile Windings | Durometer Hardness Below 20 O

OOO & OOO-S Scale Durometers | Viscoelastic Polymers, Very Soft Materials, Suit Foams, Open or Closed Cells. | Applications include motorcycle seats, medical pads and wheel chair cushions for pressure ulcer prevention. Equestrian pads, gun recoil pads and cool gel mattresses.

ASKER® C Scale Durometers | Soft Rubber, Sponge, Plastic Foam, Elastomers and similar materials. Asker C Durometers meet JIS K7312.

ASKER® F Scale Durometers | Measures the Hardness of Foam Rubber, Urethane Foam and Plastic Foams