Durometer Hardness

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