PTC® Durometer Application Guide |
| This selection guide is designed as a general overview of the many durometer styles, types, spring force ranges, and indentor configurations. |
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| It may assist in choosing the proper durometer for a particular application, however, it is not to be considered a definitive technical document. |
| Questions regarding specific testing requirements requiring detailed technical information, are freely answered as a service to our customers. |
| The text link in the ‘Model’ column of the table below will display the current information for the respective durometer. |
| It is also highly recommended that, whenever possible, an operating stand be employed in performing durometer hardness tests. Please visit the PTC® Operating Stand WebPage to select a suitable Operating Stand for your application. |
| Type |
Application |
Model |
Description |
Main Spring (gf) |
Indentor Geometry |
| A |
Rubber: Soft vulcanized, natural, nitrile
Elastomeric Materials: neoprene, thiokol, flexible polyacrylic esters
Other: Wax, felt, leather, etc.
|
201
211
306L
408
501A
511A
|
Analog Pencil
Digital Pencil
Classic Style
Ergo Style
Analog e2000
Digital e2000
|
821
821
821
821
821
821
|
 35º Cut Cone |
| JIS A |
JIS A |
Classic Style |
855 |
| B |
Rubber: Moderately Hard (typewriter rollers, platens) |
201B
211B
306BL
408B
501B
511B
|
Analog Pencil
Digital Pencil
Classic Style
Ergo Style
Analog e2000
Digital e2000
|
821
821
821
821
821
821
|
 30º Cone |
| C |
Rubber: Medium Hard
Plastics: Medium Hard |
202C
212C
307CL
409
502C
512C
|
Analog Pencil
Digital Pencil
Classic Style
Ergo Style
Analog e2000
Digital e2000
|
4536
4536
4536
4536
4536
4536
|
 35º Cut Cone |
| JIS C |
JIS C
|
Classic Style |
4500 |
| D |
Rubber: Hard
Plastics: Harder grades; Rigid Thermoplastics
|
202
212
307L
409
502D
512D
|
Analog Pencil
Digital Pencil
Classic Style
Ergo Style
Analog e2000
Digital e2000
|
4536
4536
4536
4536
4536
4536
|
 30º Cone |
| DO |
Textile Windings: Very Dense (slasher beams, etc.)
|
202DO
212DO
413
502DO
512DO
|
Analog Pencil
Digital Pencil
Ergo Style
Analog e2000
Digital e2000
|
4536
4536
4536
4536
4536
|
 3/32” Sphere |
| O |
Rubber: Soft
Textile Windings: Medium Density
|
201O
211O
410
501O
511O
|
Analog Pencil
Digital Pencil
Ergo Style
Analog e2000
Digital e2000
|
821
821
821
821
821
|
 3/32” Sphere |
| OO |
Rubber: Sponge
Textile Windings: Low Density
|
203
411
|
Analog Pencil
Ergo Style
|
113
113
|
 3/32” Sphere |
| OOO |
Plastic: Foams
Rubber: Sponge
|
412
|
Classic Style
|
113
|
 1/4” Sphere |
| SL |
Plastic: Foams
Rubber: Sponge
|
302SL
|
Classic Style
|
142
|
 11.3 mm Ø |
| CF |
Plastic: Foams
Rubber: Sponge
|
414CF
|
Classic Style
|
9072
|
 1/4” Sphere |
| Asker C |
Plastic: Foams
Rubber: Sponge
|
Asker C
|
Classic Style
|
855
|
 5.08 mm Sphere |
|
Index Terms: PTC Durometer, PTC Durometers, Shore hardness, pocket durometer, Shore scale, hardness, rubber hardness, plastic, plastic hardness, indentation hardness, ebonite, ebonite hardness, rubber hardness testing, rubber testing, hardness testing, durometer hardness, testing, ASTM D2240, D2240, ASTM D1957, ISO 868, ISO 7619, ISO 8517, ISO 7267, ISO 21509, ISO 18517, JIS K6253, JIS K6251, JIS K6252, JIS K 6253, JIS K6254, JIS K6255, JIS K6256, JIS K6257, JIS K6258, JIS K6259, JIS K6260, JIS K7215, DIN 53505, DIN 53 505, CNS, K6898, BS 903, BS 2782, BS ISO 21509, BS EN ISO 868, GB/T 10807, Asker, Asker C, SRIS 0101, MIL-STD-45622A, MIL-I-45208A, MIL-STD-120, 83.060, 83.080, hysteresis, creep, Young's Modulus.
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