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Urethane Molding Prototype Materials

Urethane molding offers an ideal solution for creating multiple prototypes that exhibit properties close to production materials. Its low cost, short turnaround times, and similarity to production materials also make it a great choice for low-volume production projects. TTH has extensive experience in designing and creating urethane parts for medical equipment, as well as other engineering applications.

Below are some of the more common urethane materials we use, but we are not limited to just what is noted below.  We offer a wide range of materials to help give you flexibility in design and applications. You can also compare the material properties here.

  • Hapflex™
    • High-performance hybrid elastomeric polymer alloys
    • Hapflex 500 Series offers soft durometer elastomers ranging from 45-95 Shore A for applications like precision tracing patterns, instrument grips, gaskets, fixtures, and flexible parts and molds
    • Hapflex 600 Series yields harder durometers ranging from 50-70 Shore D for producing abrasion-resistant parts that are virtually shock resistant and unbreakable, for use in making permanent molds, parts or master patterns that will not crack or chip during use. Other applications include living hinges, protective coverings, fixtures, forming dies, bending tools, foundry patterns and core boxes.
    • Hapflex 700 and 800 Series products are low-hazard, colorless, high-strength elastomers available in Shore hardnesses from 65A to 72D. Parts exhibit high tensile strength, high tear strength, and excellent elongation, as well as superior water immersion and adhesion properties. Suitable for mechanical, electrical, and many liquid molding applications.
    • Hapflex 1000 Series products are soft, colorless, Shore A elastomers. They are designed to take pigments well, and are often used in both liquid molding applications (parts, gaskets, molds, etc.) and electrical insulation applications (potting and encapsulating).
  • PT-8909
    • Tough, heat-resistant material for prototype and production parts
    • Low mixed viscosity for excellent flow for low-pressure molding
    • Short demold time allows fast production rates and quick project turnarounds
    • Low cured shrinkage
    • Extremely tough cured properties – excellent for forming thin sections without breakage problems
    • Easy to color with standard dyes and pigments
  • PT-8952
    • Impact-resistant, fire-retardant urethane for short-run and prototype parts
    • UL listed for UL 94V-0 at 0.1 inch (2.6 mm) thickness (UL File No. E238713)
    • Meets the requirements of FAR 28.853 for flammability
    • Very low mixed viscosity allows filling thin, complicated mold sections readily, producing void-free parts
    • Very high Izod impact strength, tensile strength and flexural strength for outstanding parts toughness
  • Rapid Cast™ RC-79D
    • Tough, impact-resistant polyurethane
    • Approved for many medical applications, including MRI coil housings
    • UL 94v0 registered flame-retardant polyurethane
    • Excellent physical properties without the use of hazardous curing catalysts (mercury, MOCA, or TDI)
  • TC-851 A/B
    • Rigid 78 Shore D polyurethane
    • Low viscosity produces void-free castings
    • Rigid, high-impact material
    • Odorless
    • Non-mercury based catalyst
    • One- to two-hour demold time
    • Applications include computer housings, models of all kinds, artwork, electronic component encapsulation
  • Rapid Cast™ TD 277-02 Polyurethane
    • Tough, impact-resistant polyurethane
    • Approved for many medical applications, including MRI coil housings
    • UL 94v0 registered flame-retardant polyurethane
    • Excellent physical properties without the use of hazardous curing catalysts (mercury, MOCA, or TDI)