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The material selection platform
Plastics & Elastomers
The material selection platform
Plastics & Elastomers

Hardness Shore D

Hardness Shore Tester

What is Shore Hardness?


The Shore D Hardness test (also called Durometer Hardness Test)  is used when the material is too soft to be measured by a Rockwell test. For very soft materials such as rubber or TPEs, the Shore A test is recommended.


How Does a Shore Hardness Test Work?


Shore D Hardness  is a standardized test consisting in measuring the depth of penetration of a specific indenter. Test methods used to measure Shore D Hardness are ASTM D2240 and ISO 868.

The hardness value is determined by the penetration of the Durometer indenter foot into the sample. Shore Hardness measures are dimensionless. It goes between 0 and 100. The higher number represents the harder material. 

The resulting depth is dependent on:

  • Hardness of the material
  • Its viscoelasticity
  • Shape of the indenter
  • Duration of the test.

One can clearly see the conceptual parallels between the Rockwell method and the Shore method. Today, off the shelf equipment, at least some of which is automated, can be purchased for immediate use and testing according to standardized ASTM/ISO procedures.


Typical Hardness Shore D Values


Polymer Name Min
Value
Max Value
ABS - Acrylonitrile Butadiene Styrene
100.000 100.000
ABS Flame Retardant
80.000 90.000
Acrylonitrile-Butadiene Styrene High Heat 80.000 85.000
Acrylonitrile-Butadiene Styrene High Impact 75.000 85.000
ABS/PC Blend - Acrylonitrile Butadiene Styrene/Polycarbonate Blend
85.000 90.000
Acrylonitrile-Butadiene Styrene/Polycarbonate 20% glass fiber 85.000 93.000
ABS/PC Flame Retardant
85.000 93.000
ASA - Acrylonitrile Styrene Acrylate
75.000 80.000
ASA/PC Blend - Acrylonitrile Styrene Acrylate/Polycarbonate Blend
80.000 85.000
Acrylonitrile Styrene Acrylate/Polycarbonate flame retardant 80.000 90.000
Acrylonitrile Styrene Acrylate/Polyvinyl Chloride 75.000 90.000
CA - Cellulose Acetate
50.000 95.000
CAB - Cellulose Acetate Butyrate
60.000 90.000
Cellulose Proprionate 40.000 95.000
CPVC - Chlorinated Polyvinyl Chloride
83.000 90.000
Ethylene Chlorotrifluoroethylene 75.000 75.000
ETFE - Ethylene Tetrafluoroethylene
70.000 75.000
EVA - Ethylene Vinyl Acetate
15.000 45.000
FEP - Fluorinated Ethylene Propylene
60.000 65.000
HDPE - High Density Polyethylene
60.000 70.000
HIPS - High Impact Polystyrene
60.000 75.000
High Impact Polystyrene flame retardant V0 60.000 70.000
Ionomer (Ethylene-Methyl Acrylate Copolymer)
30.000 66.000
LCP - Liquid Crystal Polymer
82.000 95.000
Liquid Crystal Polymer carbon fiber 95.000 95.000
Liquid Crystal Polymer glass fiber 90.000 95.000
Liquid Crystal Polymer mineral 90.000 95.000
LDPE - Low Density Polyethylene
40.000 50.000
LLDPE - Linear Low Density Polyethylene
55.000 56.000
PA 11 - (Polyamide 11) 30% Glass fiber reinforced
73.000 78.000
Polyamide 11 conductive 64.000 64.000
Polyamide 11 flexible 59.000 63.000
Polyamide 11 rigid 64.000 72.000
PA 12 (Polyamide 12) conductive 71.000
Polyamide 12 fiber reinforced 70.000 80.000
Polyamide 12 flexible 63.000 63.000
Polyamide 12 glass filled 58.000 75.000
Polyamide 12 rigid 68.000 72.000
PA 6 - Polyamide 6
80.000 95.000
PA 6-10 - Polyamide 6-10
60.000 85.000
PA 66 - Polyamide 6-6
80.000 95.000
Polyamide 6-6 30% glass fiber 80.000 95.000
Polyamide 6-6 30% mineral filled 80.000 95.000
Polyamide 6-6 impact modified 15-30% glass fiber 70.000 90.000
PA 66, Impact Modified
70.000 85.000
Polyamide semi-aromatic 81.000 83.000
PAI - Polyamide-Imide
90.000 99.000
Polyamide-Imide 30% glass fiber 95.000 99.000
Polyamide-Imide low friction 95.000 99.000
Polyacrylonitrile 85.000 93.000
Polyarylamide 30-60% glass fiber 90.000 90.000
PBT - Polybutylene Terephthalate
90.000 95.000
Polybutylene Terephthalate 30% glass fiber 95.000 99.000
Polycarbonate 20-40% glass fiber 90.000 95.000
Polycarbonate 20-40% glass fiber flame retardant 90.000 95.000
PC - Polycarbonate, high heat
90.000 95.000
PCL - Polycaprolactone
55.000 55.000
PCTFE - Polymonochlorotrifluoroethylene
75.000 85.000
PE - Polyethylene 30% Glass Fiber
70.000 80.000
PEEK - Polyetheretherketone
85.000 95.000
Polyetheretherketone 30% carbon fiber 90.000 99.000
Polyetheretherketone 30% glass fiber 90.000 99.000
PEI - Polyetherimide
95.000 99.000
Polyetherimide 30% glass fiber 95.000 99.000
PEI, Mineral Filled
95.000 99.000
PESU - Polyethersulfone
95.000 95.000
Polyethersulfone 10-30% glass fiber 95.000 95.000
PET - Polyethylene Terephthalate
85.000 95.000
Polyethylene Terephtalate 30% glass fiber 95.000 99.000
Polyethylene Terephtalate 30/35% glass fiber impact modified 90.000 90.000
Polyethylene -Ultra High Molecular Weight 60.000 70.000
PFA - Perfluoroalkoxy
60.000 65.000
PMMA - Polymethylmethacrylate/Acrylic
90.000 99.000
Polymethylmethacrylate (Acrylic) high heat 99.000 99.000
PMMA (Acrylic) Impact Modified
83.000 95.000
PMP - Polymethylpentene
60.000 70.000
Polymethylpentene 30% glass fiber 75.000 80.000
Polymethylpentene mineral filled 75.000 80.000
POM - Polyoxymethylene (Acetal)
80.000 95.000
POM (Acetal) Impact Modified
80.000 92.000
Polyoxymethylene (acetal) low friction 80.000 95.000
POM (Acetal) Mineral Filled
92.000 95.000
PP - Polypropylene 10-20% Glass Fiber
80.000 85.000
Polypropylene 10-40% mineral filled 70.000 80.000
Polypropylene 10-40% talc 75.000 85.000
Polypropylene 30-40% glass fiber 85.000 88.000
PP (Polypropylene) Copolymer
70.000 80.000
PP (Polypropylene) Homopolymer
70.000 83.000
PP, Impact Modified
45.000 55.000
PPE - Polyphenylene Ether
85.000 90.000
Polyphenylene Ether 30% glass fiber 85.000 90.000
Polyphenylene Ether flame retardant 85.000 90.000
Polyphenylene Ether impact modified 85.000 90.000
Polyphenylene Ether mineral filled 85.000 90.000
PPS - Polyphenylene Sulfide
90.000 95.000
Polyphenylene Sulfide 20-30% glass fiber 90.000 99.000
Polyphenylene Sulfide 40% glass fiber 95.000 99.000
Polyphenylene Sulfide conductive 90.000 95.000
Polyphenylene Sulfide glass fiber & mineral 88.000 95.000
PPSU - Polyphenylene Sulfone
80.000 80.000
Polystyrene crystal 85.000 90.000
Polystyrene high heat 90.000 95.000
PSU - Polysulfone
80.000 80.000
Polysulfone 30% glass fiber 95.000 95.000
Polysulfone mineral filled 90.000 90.000
PTFE - Polytetrafluoroethylene
50.000 65.000
Polytetrafluoroethylene 25% glass fiber 60.000 70.000
PVC (Polyvinyl Chloride), 20% Glass Fiber-reinforced             
85.000 90.000
PVC, Plasticized
15.000 70.000
Polyvinyl Chloride plasticized filled 15.000 70.000
PVC Rigid
65.000 90.000
PVDC - Polyvinylidene Chloride
88.000 90.000
PVDF - Polyvinylidene Fluoride
65.000 82.000
SAN - Styrene Acrylonitrile
75.000 95.000
Styrene Acrylonitrile 20% glass fiber 90.000 99.000
SMA - Styrene Maleic Anhydride
83.000 85.000
Styrene Maleic Anhydride 20% glass fiber 83.000 85.000
Styrene Maleic Anhydride flame retardant V0 83.000 85.000
TPS, Injection General Purpose
45.000 62.000
Thermoplastic Starch WR 52.400 53.600
XLPE - Crosslinked Polyethylene
30.000 80.000

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