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ABS Hei-Cast PU8160 for Vacuum Casting Material
Hei-Cast PU8160 is a versatile vacuum casting resin offering a balance of strength, flexibility, and process efficiency. While it excels in prototyping and short-run production, engineers should evaluate thermal and UV requirements for long-term applications. For extreme environments, epoxy-based or industrial-grade PU alternatives may be preferable.
Hei-Cast PU8160

Basic Characteristics

Hei-Cast PU8160 is a high-performance polyurethane (PU) resin specifically formulated for vacuum casting, a rapid prototyping and low-volume production process. It is designed to replicate the mechanical, thermal, and aesthetic properties of engineering-grade thermoplastics, making it ideal for functional prototypes, end-use parts, and small-batch manufacturing.
ABS Hei-Cast PU8160 for Vacuum Casting Material

Color

  • Typically available in translucent/off-white (unpigmented), allowing for easy dyeing or painting.
  • Can be custom-colored with compatible pigments to match brand or material requirements (e.g., ABS-like, PP-like, or metallic finishes).

Key Technical Parameters

Property Value Unit
Tensile Strength 40–50 MPa
Elongation at Break 10–20% %
Flexural Modulus 1500–2000 MPa
Shore Hardness 80–85 D
Impact Strength (Izod) 30–50 kJ/m²
Heat Deflection Temp (HDT) 60–80 °C
Density 1.1–1.2 g/cm³
Viscosity (Mixed) 200-400 mPa·s
Cure Time (Demold) 1-2 hours

Material Composition

  • Base Chemistry: Two-component polyurethane (Isocyanate + Polyol).
  • Additives: UV stabilizers, flexibilizers, and fillers (optional) to enhance durability and mimic target materials (e.g., ABS, PC, or nylon).
  • Low VOCs: Formulated for workplace safety and minimal odor during processing.

Physical Properties Table

Property Test Standard Value
Tensile Strength ASTM D638 45 MPa
Elongation ASTM D638 15%
Flexural Strength ASTM D790 65 MPa
Compressive Strength ASTM D695 70 MPa
Thermal Conductivity ASTM D518 0.2 W/m·K
Water Absorption ASTM D570 <1% (24h)

Application Scenarios

  • Functional Prototypes: Parts requiring mechanical testing (e.g., housings, gears).
  • Consumer Products: Cosmetic casings, grips, or wearable devices.
  • Automotive: Interior trim, ducting, or non-engine components.
  • Medical: Non-implantable devices (e.g., housings, ergonomic handles).
  • Aerospace: Lightweight ductwork or mock-up components.

Industry Applications

  • Rapid Prototyping (Bridge tooling before mass production).
  • Low-Volume Manufacturing (50–500 parts per mold).
  • Design Validation (Fit, form, and function testing).

Vacuum Casting Process Compatibility

  • Mold Material: Typically silicone molds (e.g., Shore A 20–30).
  • Casting Pressure: Vacuum degassing (≤0.1 bar) to eliminate bubbles.
  • Post-Curing: Optional thermal post-cure (60–80°C) to enhance properties.
  • Surface Finish: High-gloss to matte, depending on mold texture.

Advantages & Limitations

Advantages Limitations
✔ Excellent detail replication ✖ Limited heat resistance vs. engineering plastics
✔ Fast turnaround (24–48 hrs) ✖ Lower UV stability (requires coating)
✔ Cost-effective for small batches ✖ Mold life ~20–50 parts (silicone wear)
✔ Wide material mimicry (ABS, PC, PP) ✖ Not suitable for high-load structural parts

Manufacturers & Alternatives

  • Primary Supplier: Axson Technologies (Hei-Cast series).
  • Alternative Materials:
  • Smooth-Cast 300 Series (Polytek) – Similar mechanical properties.
  • RenCast (Axson) – Higher-temp or flexible variants.
  • Vybrane (basf) – Enhanced chemical resistance.
Learn more about ABS type materials
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