ABS-Like Plastic Casting

ABS-Like Plastic Casting

Need the appearance and performance of injection-molded ABS — without the high cost and long lead time of steel tooling? We specialize in ABS-like plastic casting using vacuum casting technology, delivering rigid, finely detailed functional prototypes or small-batch parts in as fast as 7 days — no hard molds required.
Our ABS-like urethane castings achieve a Shore D hardness of 78–82, high surface gloss, excellent texture replication, and have helped numerous consumer electronics and medical device customers accelerate design verification with confidence.
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Description

Material Performance & Consistency

 

Our ABS-like polyurethane casting material closely matches traditional injection-molded ABS in rigidity, dimensional accuracy, and functional performance - making it the ideal choice for functional prototypes and short-run ABS parts. Batch-to-batch consistency is controlled within ±2%.

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Performance Comparison Table

 

Property

ABS-Like Urethane Casting

Injection-Molded ABS

Test Standard

Shore D Hardness

78–82

75–85

ASTM D2240

Tensile Strength

50–70 MPa

40–60 MPa

ASTM D638

Heat Deflection Temperature

55–70 °C

80–100 °C

ASTM D648

Elongation at Break

5–15%

5–20%

ASTM D638

Impact Strength

25–40 kJ/m²

15–40 kJ/m²

ISO 180

Shrinkage Rate

0.1–0.3%

0.4–0.8%

Internal Test

Based on supplier TDS and in-house testing. Our ABS-like plastic casting delivers strong tensile strength and Shore D hardness. Through optimized post-curing, the Heat Deflection Temperature (HDT) remains stable and suitable for most functional validation scenarios. Internal batch testing confirms performance variation of less than 2%.

 

Process Flow

 

ABS-like urethane casting uses silicone mold and vacuum casting processes to ensure bubble-free, low-shrinkage, smooth-surface parts. The full process can be completed in as few as 7 days.

  • 7-Step Process *(factory photos recommended)*
  • CAD file review and DFM optimization *(1 day)*
  • Master model production (SLA or CNC machining)
  • Silicone mold casting - creating high-precision silicone master molds
  • Vacuum casting - vacuum-degassed urethane resin poured to eliminate bubbles
  • Room-temperature / heat curing and post-curing
  • Demolding and fine post-processing
  • Full-scale QC inspection and delivery

The vacuum environment is essential for controlling surface finish and dimensional stability - particularly important for ABS-alternative casting material applications.

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Surface Appearance

ABS-like plastic casting achieves injection-grade surface quality, supporting a full range of finishes - matte, semi-gloss, and high gloss. Color matching accurately reproduces Pantone or RAL standards, with strong detail reproduction (wall thickness as low as 0.8–1.0 mm, logo embossing, texture replication).

 

Surface Treatment Options

 

We offer a comprehensive range of post-processing services to enhance both aesthetics and functionality:

Treatment

Description

**Painting**

Automotive-grade paint finish; matte, gloss, or piano lacquer

**Electroplating / Conductive Coating**

Metallic texture and electrical conductivity

**Screen Printing / Pad Printing**

Logos, lettering, and functional markings

**IMF Texture / Surface Texturing**

Faux leather, frosted, and custom grain effects

**Optical Clear Processing**

High-transparency ABS-like parts

**Overmolding**

Soft-over-hard composite coating

Dimensional impact of each treatment is controlled within ±0.05 mm. Pricing is referenced from low to high based on complexity.

 

Application Scenarios

ABS-like urethane casting is widely used wherever functional prototypes or small batches of rigid parts are required:

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Consumer Electronics Enclosures -

 Phone/headphone housings with precise texture and fitment

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Medical Device Panels -

Equipment panels meeting biocompatibility and appearance requirements

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Automotive Interior Prototypes -

Trim panels and handle validation; qualified tensile strength and HDT

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Industrial Equipment Panels -

 Operator interfaces, impact-resistant and wear-resistant

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Smart Home Products -

 Switch panels, sensor housings

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Exhibition & Display Models -

High-detail display items

Many customers successfully transition from ABS-like plastic casting directly into low-volume production.

 

FAQ

 

What is ABS-like resin casting, and how does it differ from real ABS plastic?

ABS-like resin casting (also called ABS-like urethane casting or ABS-like polyurethane casting) is a process that replicates the look and feel of injection-molded ABS using vacuum-cast polyurethane resin - no hard tooling required. It delivers lower cost, faster lead times, and performance closely matching injection-molded ABS, making it ideal for prototyping and short-run ABS parts without mold investment.

How strong are ABS-like castings compared to injection-molded ABS parts?

Our ABS-like plastic castings achieve a tensile strength of 50–70 MPa and a Shore D hardness of 78–82, comparable to injection-molded ABS. Heat deflection temperature and impact strength also meet most functional validation requirements.

What surface treatments are available for ABS-like castings?

We support painting, electroplating, screen printing, pad printing, and texture processing - all achieving injection-grade appearance with precise Pantone/RAL color matching.

What is the minimum wall thickness for vacuum-cast ABS-like parts?

We recommend a minimum wall thickness of 1.0–1.5 mm, which can go as low as 0.8 mm for complex small parts. DFM analysis is conducted to ensure complete fill during vacuum casting.

How many parts can one silicone mold produce?

A single silicone mold typically yields 20–50 ABS-like urethane casting parts, depending on part complexity and mold maintenance. Suitable for short-run demand of 1–200 pieces.

 

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