Polyurethane Castings

The cost-effective way to simulate injection molded parts

Various polyurethane products
Products for the construction of polyurethane

SLA Master Patterns

An SLA part is the most common master pattern for making RTV tooling. The shrink-compensated SLA part is finished to a 3A level with a coat of primer. The pattern is then measured, verified, and checked for quality before use in making the RTV tooling.

Metal Master Patterns

For accurate, highly detailed polyurethane castings, we generally use a metal master pattern for the fabrication of the RTV tooling. Aluminum is the best choice for making a machined master pattern. RTV rubber tooling and AccuCast parts are the ideal choice for:

  • High quality prototypes
  • Short runs of 25 to 50 units
  • Prototypes that require plasticity, high temperature, high strength and/or good flexibility

Materials:

Rigid Casting Resins:

  • TC-800: Rigid 75 Shore D polyurethane casting system with quick demold times.
  • TC-803: Medium-set resin suitable for model making and prototyping.
  • TC-804: Jet black casting resin ideal for detailed parts.
  • TC-808: Jet black resin with enhanced properties.
  • TC-1630: Ultracast resin known for its durability.

Flexible Polyurethanes:

  • FP Series: Fast-demold, low-viscosity flexible polyurethanes ranging from 15A to 90A hardness.
  • F Series: Flexible polyurethanes with superior physical properties, suitable for production and speed.
  • M Series: Medium work time flexible polyurethanes with high physical properties.

Elastomers:

  • M-3180: Polyurethane elastomer with strong tear resistance and 80A hardness.

Foams:

  • TC-284 Polysoft: Variable ratio flexible foam suitable for cushioning applications.
  • TC-266 Polysoft: Lightweight, cushion-style expanding foam.

Dimensional tolerances:

  • +/- 0.005” or better for the first 5 Inches, +/-.02” for each additional Inch.

When you need only a few plastic parts or a limited production run, 3D-CAM’s RTV rubber tooling is a great solution.

Using SLA or SLS as a master pattern, we make rubber molds that are used to cast polyurethane duplicates.

RTV rubber tooling is an inexpensive way to create highly precise parts perfect for prototypes or small production runs. With a robust variety of polyurethane materials available, we can create parts of hardnesses ranging from soft to rigid, and build in varying levels of heat and impact resistance.

Offered in a wide range of colors, your polyurethane duplicates can be painted and textured to simulate injection-molded parts for marketing samples, presentations, or Trade Shows.