A variety of urethane and silicone options are available for an instant online quote. If you do not see the material stock you are looking for, please choose "Custom" under the material drop-down on your quote page and submit for an expert engineering review once you have specified features, tolerances, inspection needs, and quantities required.
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Urethane Cast Materials by Properties
Rigid Polyurethane (Black, Natural, Color-Match)
- ABS-Like, FR: A tough Shore 80D Flame Retardant material is UL Listed with a flammability rating at 1/16 inch (1.6 mm). Colored Black. (View spec sheet)
- General Purpose: An impact-resistant Shore 78D material used for a variety of purposes from enclosure housings to concept models. This material exhibits ABS-like properties. (View spec sheet 1, spec sheet 2)
- Glass-Filled Nylon-Like: A stiff, USP Class VI, high-performance urethane with high impact strength and an HDT of 190F (88C). Shore 85D. (View spec sheet)
- Polypropylene-Like: A tough, abrasion-resistant, flexible urethane with polypropylene-like ductility. This material is Shore D65-D75. (View spec sheet 1, spec sheet 2)
- Polycarbonate-Like: A stiff, high-impact, high HDT material with a wide variety of uses. Simulates polycarbonate (non-clear), Shore 84D. (View spec sheet)
Rigid Clear Polyurethane (Colorless)
- Rigid Clear: A versatile, Shore D 80, clear polyurethane. A matte finish will give a frosted appearance, and a higher gloss will increase its transparency. (View spec sheet)
Rubber-Like Polyurethane (Black, Natural, Color-Match)
- Rubber-Like Shore A 25-35: A Shore 25A-35A rubber-like elastomer with a 1,300% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
- Rubber-Like Shore A 35-45: A Shore 35A-45A rubber-like elastomer with an 800% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
- Rubber-LIke Shore A 45-55: A Shore 45A-55A rubber-like elastomer with a 650% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
- Rubber-Like Shore A 55-65: A Shore 55A-65A rubber-like elastomer with a 625% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
- Rubber-Like Shore A 65-75: A Shore 65A-75A rubber-like elastomer with a 1,147% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
- Rubber-Like Shore A 75-85: A Shore 75A-85A rubber-like elastomer with a 650% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
- Rubber-Like Shore A 85-95: A Shore 85A-95A rubber-like elastomer with a 670% elongation to break. Natural material is amber in color and can be pigmented. (View spec sheet)
Clear Rubber-Like Polyurethane (Colorless)
- Clear Rubber-Like Shore A 40-50: A Shore 40A-50A clear rubber-like polyurethane elastomer with 300% elongation to break. A matte finish will give a frosted appearance, and a higher gloss will increase its transparency. (View spec sheet)
- Clear Rubber-Like Shore A 60-70: A Shore 60A-70A clear rubber-like polyurethane elastomer with 200% elongation to break. A matte finish will give a frosted appearance, and a higher gloss will increase its transparency. (View spec sheet)
- Clear Rubber-Like Shore A 65-75: A Shore 65A-75A clear rubber-like polyurethane elastomer with 300% elongation to break. A matte finish will give a frosted appearance, and a higher gloss will increase its transparency. (View spec sheet)
- Clear Rubber-Like Shore A 85-95: A Shore 85A-95A clear rubber-like polyurethane elastomer with 180% elongation to break. A matte finish will give a frosted appearance, and a higher gloss will increase its transparency. (View spec sheet)
Cast Silicone Materials
Silicone is not only used for making tools in casting, but it is also an excellent material for parts. Silicone is durable, stretchy, tear-resistant, inert, easy to clean, and has a high-temperature resistance. Silicone rubber can achieve ultra-soft durometers as low as Shore A 10 and up to medium-hard rubbers in the Shore A 60 range. Silicone casting is ideal for medical devices, surgical models, props, soft-touch housings, kitchen accessories, and more.
- Shore A 10 (TC-5005 or equiv.)
- Shore A 20-30 (TC-5130 or equiv.)
- Shore A 30-40 (TC-5140 or equiv.)
- Shore A 40-50 (TC-5150 or equiv.)
- Shore A 50-60 (Smooth‑Sil™ 960 or equiv.)
Note: Equivalent materials may be used in substitution of those on the spec sheets. If there is a particular brand, material, or qualifier required please notify the Xometry team.
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