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Home  >>  Products  >>  Hardness  >>  Durometer Specs
Durometer Information

Durometer Types

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Technical Data
Type Model Main Spring Indenter Description Applications
Type A
ASTM D2240

306L

211

821 gf
1.81 lbs.

Truncated Cone 35° Included Angle Type A Soft rubber, elastomers, leather, waxes
408 501A
201 511A
Type D
ASTM D2240

307L

212

4.5 kgf
10 lbs.

Conical
30° Included Angle
Type D Hard rubber, plastics
409 502D
202 512D
Type B
ASTM D2240

306BL

501B

821gf
1.81 lbs.

Concical
30° Included Angle
Type B Rubber, elastomers
408B 511B
Type C
ASTM D2240

307CL

502C

4.5 kgf
10 lbs.

Truncated Cone
35° Included Angle
Type C Medium-hard rubber, plastics
409C 512C
Type DO
ASTM D2240
413 502DO

4.5 kgf
10 lbs.

3/32" Hemispherical Type DO Dense textile windings, medium printing rollers
512DO
Type O
ASTM D2240
410

821 gf
1.81 lbs.

3/32" Hemispherical Type O Soft printing rollers, textile windings
Type OO
ASTM D2240
411

113 gf
4 oz.

3/32" Hemispherical Type OO Sponge rubber, soft rubber
Type OOO
ASTM D2240
412

113 gf
4 oz.

1/2" Hemispherical Type OOO Very soft materials e.g. open cell foams
Type SL
PTC 1055
302SL

142 gf
5 oz.

1sq.cm - Circulator Type SL Foam rubber

 

Durometer Used by Material

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Technical Data
Material Durometer ASTM Type
Abs: D
Butyl: A
Felt: A
Leather: A or D
Polycarbonate (Lexan): D
Polyurethane: A or D
Sorbothane: OO
Wood: D
Acetate: D
Delrin: D
Garolite: D
Neoprene: A
Polyester: D
PVC (Polyvinyl-Chloride): A or D
Teflon: A or D
Vinyl: A
Acrylic: D
Epoxy (Potting Compound): D
Hypalon: A
Nitrile: A
Polyethylene: D
SBR (Styrene-Butadiene): A
Silicone Rubber: A
Wax: A
Buna-N: A
Ertalyte: D
Kevlar: D
Nylon: D
Polystrene: D

 

Test Stands & Constant Load Weights (PTC Durometers)

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Technical Data
Model Image Description
320 320 Precision Spring Loaded Test Stand for Type A, B, C, D, DO, & O
441 441 Portable 1 kg Constant Load Weight for Type A, B, & O
470 470 Precision Deadweight Test Stand for Models 302SL, 411, & 412
471 471 Precision Deadweight Test Stand for Type A, B, & O
473, 476 473, 476 Precision Deadweight Test Stand for Types A, B, C, D, DO, & DO
475, 477 475, 477 Precision Deadweight Test Stand for Type C, D, & DO



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