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Duromenter Hardness | Comparison Chart

Shore DShore ASimilar To:
-30Art Gum Eraser
-40Pink Pearl Eraser
1550Rubber Stamp
-60Pencil Eraser
3070Rubber Heel
-80Rubber Sole
4590Typewriter Roller
55100Pipe Stem
74-Textbook Cover
78-Douglas Fir Plywood
86-Hardwood Desktop
90-Glass or Formica

Urethanes

Shore A Durometer: Range from 10-90A.

These are flexible materials that have high tear and tensile strengths which make them ideal for prototype or production use. Examples: keypads, over molds, seals, bumpers, and tool making.

Shore D Durometer: Range from 40-70D.

The 40-70D range has exceptional abrasion and impact resistance. These materials are used to produce prototype or production parts. Examples: metal forming die facing, base pads, gears, and casters.

Shore D Durometer: Range from 70-85D.

The 70-85D range are high durometer materials that closely match thermoplastic properties such as ABS, acrylic, polypropylene, styrene, and nylon. These materials are ideal for prototypes and are commonly used in short run production parts because they offer a quick and inexpensive alternative from high volume injection molding. There are a number of materials in this range that are fire retardant and meet the UL 94V-O flammability ratings and are compliant to the FAR PART 25.853 Flammability Resistance.

Water Clear: Range from 65A-85D

These materials are designed to maintain clarity in outdoor applications by being UV stable and will remain color stable as long as stable colorants are used. These aliphatic based materials are used for lenses, light pipes, tinted cases, and where color matching is needed.

There are a few water clear materials that can be used as adhesives; they work well to bond polycarbonate, acrylic, and hard to bond plastic and metals.

Silicone

  • Can range from 15 A Durometer to 65 A Durometer
  • Ideal for tool making
  • Part production: Seals, gaskets, boots, keypads, etc.

Epoxy

  • Aluminum filled epoxy can be used for tools
  • Vacuum form dies and tools

Wax

Foundry patterns used in casting metal parts through lost wax or investment casting

Download Datasheets

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We prefer you send a .stp or .x_t file if you are not familiar with exporting a good .stl file. It is very important to know the correct way to export a .stl file because the way you export the .stl will determine the quality of the part that is produced. To learn how to export a good .stl file please refer to the section labeled Creating a .STL file.

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Three finish levels are offered for Stereolithography parts. You choose a finish level based on the application of your model: Concept, Design Verification, RTV, or Plating.

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Here is a list of common questions to aid you in your product development.