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Durometers

Durometers, or hardness testers, are used to determine the hardness of a material to deformation. Hardness measurements quantify the resistance of a material to plastic deformation.

The Durometer is typically used to measure the hardness in polymers, elastomers and rubbers. There are several scales of durometers, used for materials with different properties. The two most common scales, using slightly different measurement systems are the ASTM D2240 type A and type D scales. The A scale is for softer plastics and rubber, while the D scale is for harder ones. However, the ASTM D2240-00 testing standard calls for a total of 12 scales, depending on the intended use; types A, B, C, D, DO, E, M, O, OO, OOO, OOO-S, and R. Each scale results in a value between 0 and 100, with higher values indicating a harder material.

The Leeb Rebound Hardness Tester is one of the four most used method for testing metal hardness. This portable method is mainly used for testing sufficiently large metal workpieces (mainly above 1 kg). Leeb metal hardness testers are portable and can be used at different angles as long as they are perpendicular to the test surface. Since the Leeb Hardness Tesater is electronic in nature, it is designed to automatically convert from the Leeb number to a more conventional hardness scale.

The Barcol Impressor, or Hardness Tester, as a hardness test characterizes the indentation hardness of materials through the depth of penetration of an indentor, loaded on a material sample and compared to the penetration in a reference material. The method is most often used for composite materials such as reinforced thermosetting resins or to determine how much a resin or plastic has cured. It is inexpensive and quick, and provides information on the cure throughout a part.


  • Rex V-Block Cube

    Rex V-Block Cube
    Price: $ 40.00 up to $ 45.00
    Rex V-Block & Base plate for O-rings and small samples
    Allows precise, repeatable measurement of small samples
    Manufacturer: Rex
  • Rex CLW Constant Load Weight RX-CLW

    Rex CLW Constant Load Weight RX-CLW
    Price: $125.00 to $250.00
    Rex CLW Constant Load Weight RX-CLW
    The Constant Load Weight for gauges with an 822g springload (types A, B, 0) slides onto the lower barrel of the gauge, gives it a wider foot, and raises the mass of the gauge to the suggested 1kg
    Manufacturer: Rex
    Warranty: One Year
  • Rex RX-BF Big Foot Durometer Foot Adapter

    Rex RX-BF Big Foot Durometer Foot Adapter
    Price: $ 105.00
    The Big Foot increases the diameter of the foot from 1/2" to 1 3/8" diameter
    Manufacturer: Rex
    Warranty: One Year
  • Rex OTK-AN Analog O-Ring Hardness Kit

    Rex OTK-AN Analog O-Ring Hardness Kit
    Price: $ 2,165.00
    Rex OTK-AN Analog O-Ring Hardness Kit
    The Analog Complete O-Ring Hardness Kit is the most convenient and accurate way to perform repeatable hardness (durometer) testing on thin materials – as thin as 0.050”.
    Manufacturer: Rex
  • Rex OTK-DG Digital O-Ring Hardness Kit

    Rex OTK-DG Digital O-Ring Hardness Kit
    Price: $ 2,765.00 to $ 3,195.00
    Rex OTK-DG Digital O-Ring Hardness Kit
    The Digital Complete O-Ring Hardness Kit is the most convenient and accurate way to perform repeatable hardness (durometer) testing on thin materials – as thin as 0.050”.
    Manufacturer: Rex
  • Rex EMS4 Remote Readout Data Collection App

    Rex EMS4 Remote Readout Data Collection App
    Price: $1,195.00
    Rex EMS4 Remote Readout Data Collection App
    7" Color Tablet with Remote Android App
    Custom Made Tablet Stand
    AC Adapter
    Set Tolerances
  • Rex OS-1 Durometer Test Stand

    Rex OS-1 Durometer Test Stand
    Price: $1,300.00
    Rex OS-1 Durometer Test Stand
    Durometer Operating Stand for use with type A, B, C, D, DO, E, O, OO, and OOO
    Compatible with RX-1600, RX-1700 & RX-DD Durometers
    Manufacturer: Rex
    Warranty: One Year
  • Rex OS-2 Durometer Test Stand

    Rex OS-2 Durometer Test Stand
    Price: $ 715.00 up to $ 965.00
    Rex OS-2 Durometer Test Stand for Type A, B, E and O scale durometers
    Eliminates operator error
    Manufacturer: Rex
    Warranty: One Year
  • Rex OS-3 Durometer Test Stand for Type M Durometer

    Rex OS-3 Durometer Test Stand for Type M Durometer
    Price: $965.00
    Rex OS-3 Durometer Test Stand for Type M Durometer
    Required for Type M Durometers per ASTM D2240
    Manufacturer: Rex
    Warranty: One Year
  • Rex OS-4 Durometer Test Stand for Type OO & OOO

    Rex OS-4 Durometer Test Stand for Type OO & OOO
    Price: $715.00 to $965.00
    Rex OS-4 Durometer Test Stand for Type OO & OOO
    Eliminates operator error
    Manufacturer: Rex
    Warranty: One Year
  • Rex DIN-FA 18mm Durometer Foot Attachment DIN - ASTM Type R

    Rex DIN-FA 18mm Durometer Foot Attachment DIN - ASTM Type R
    Price: $ 105.00
    Rex 18mm Durometer Foot Attachment DIN / ASTM Type R
    Manufacturer: Checkline
    Warranty: One Year
  • Checkline TBK-HP Test Block for HP Textile Durometers with Flat Base

    Checkline TBK-HP Test Block for HP Textile Durometers with Flat Base
    Price: $ 185.00
    Checkline Test Block Kit for Flat Bottom HP Durometers
    Manufacturer: Checkline
    Warranty: One Year