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SILICONE TOOLING • POLYURETHANE VACUUM CASTING

Polyurethane Vacuum Casting & Silicone Tooling

Fast Low-Volume Polyurethane Urethane Casting with Silicone Tooling for Pre-Series Validation.

Cost-effective bridge production creating 10 to 50+ end-use parts without expensive hard metal tooling. Utilizing high-fidelity master SLA models and Room Temperature Vulcanizing (RTV) silicone molds, we cast polyurethane resins that replicate production ABS, PP, PC, and rubber.

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Parts in 5–7 Business Days
Zero Tooling Investment
Replicates ABS, PP, PC & Rubber
ENGINEERING EXCELLENCE & CAPABILITIES

Industrial Manufacturing for Polyurethane Vacuum Casting & Silicone Tooling

JYH Prototype combines 100+ precision machining centers, automated inspection, and in-depth metallurgy expertise to deliver components that meet the strictest international engineering tolerances and quality standards.

Fast Silicone Tooling

RTV silicone molds created from high-resolution master SLA parts in just 24–48 hours.

Elastomeric Materials

Cast polyurethane rubbers across Shore 30A to 90A for gaskets, seals, and shock pads.

Color & Transparency

Exact Pantone and RAL color matching with water-clear optical resin capabilities.

Low-Cost Validation

Produce 10 to 50 functional units for beta testing, regulatory trials, and trade shows.

TECHNICAL DEEP DIVES & PRODUCTION METHODS

Engineering Focus: Polyurethane Vacuum Casting & Silicone Tooling

Four critical manufacturing challenges solved by our Shenzhen factory engineering team through advanced machinery, smart toolpaths, and verified metrology protocols.

RTV Silicone Molds High-Fidelity Room-Temperature Vulcanizing (RTV) Silicone Molds 500 × 500 HD Natural
Engineering Focus #01

High-Fidelity Room-Temperature Vulcanizing (RTV) Silicone Molds

Liquid silicone poured around an SLA master captures intricate surface textures, EDM spark finishes, and micro-logos with zero draft angle required, curing into durable flexible molds.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
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Production-Grade PU Engineering-Grade Polyurethane Resins Mimicking ABS, PP & POM 500 × 500 HD Natural
Engineering Focus #02

Engineering-Grade Polyurethane Resins Mimicking ABS, PP & POM

Vacuum degassed two-part PU resins (Hei-Cast, Axson) replicate the flexural modulus, heat deflection temperature (HDT), and flame-retardant UL94-V0 ratings of production thermoplastics.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
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Clear & Overmolded Custom Pigmentation, Overmolding & Optical Water-Clear Tinting 500 × 500 HD Natural
Engineering Focus #03

Custom Pigmentation, Overmolding & Optical Water-Clear Tinting

Vacuum chamber casting allows integral color pigmentation, soft-touch elastomeric overmolding onto rigid cores, and crystal-clear lens fabrication with Ra 0.05µm optical clarity.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry
Fast Turnaround 10 to 50 Functional Parts Dispatched in 5 to 7 Working Days 500 × 500 HD Natural
Engineering Focus #04

10 to 50 Functional Parts Dispatched in 5 to 7 Working Days

Vacuum casting bridge cycles bridge the gap between initial prototyping and serial injection molding, allowing hardware startups to dispatch pre-series test units in under a week.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry
VERIFIED PRODUCTION STANDARDS

Capabilities & Quality Protocols

Every part manufactured at JYH Prototype adheres to international engineering standards and rigorous metrology protocols.

Technical & Machine Capabilities

  • Maximum casting chamber size: 1,800mm × 900mm × 800mm
  • Mold life: 15 to 25 castings per silicone cavity depending on geometry and resin
  • Shore A range: 25A to 90A (rubber-like); Shore D range: 60D to 85D (rigid plastics)
  • Insert casting: brass threaded inserts, metal pins, and magnets cast in place

Metrology & Quality Assurance

  • Zeiss PRISMO 3D CMM Metrology with scanning resolution down to 0.9µm
  • Keyence Optical Non-Contact Flash Measuring System for micro-features
  • XRF Spectrometry for raw metal alloy composition verification
  • AS9102 Form 1, Form 2, and Form 3 First Article Inspection (FAI) packages

Ready to Prototype or Scale Polyurethane Vacuum Casting & Silicone Tooling?

Upload your 3D CAD models (.STEP, .IGES, .SLDPRT, .X_T) or 2D technical drawings (.PDF, .DWG) to receive an interactive quote with comprehensive Design for Manufacturability (DFM) feedback in under 2 hours.

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ENGINEERING FAQ

Frequently Asked Questions

Common engineering questions regarding tolerances, material traceability, and turnaround for Polyurethane Vacuum Casting & Silicone Tooling.

What is the main advantage of vacuum casting over 3D printing? +
Vacuum cast polyurethane parts have isotropic structural strength, identical surface finish to injection molding, and can be cast in exact production colors and clear optics without layer stepping.
How many parts can be produced from one silicone mold? +
A silicone mold typically yields 15 to 25 parts before the silicone begins to degrade. For quantities of 50 to 100 parts, multiple silicone tools are made from the single master pattern.
Can you match custom Pantone or RAL colors? +
Yes. Liquid pigments are mixed into the polyurethane resin prior to vacuum casting, achieving precise Pantone or RAL color matches without requiring post-painting.
Can threaded metal inserts be molded in place? +
Yes. Brass bushings, threaded standoffs, and metal pins can be positioned inside the silicone mold and cast directly into the polyurethane part for maximum pull-out strength.
MORE PROCESSES CAPABILITIES

Explore Related More Processes Processes

Browse our additional specialized manufacturing processes designed for tight tolerance components.

RAPID TOOLING & PRODUCTION

Plastic Injection Molding & Rapid Tooling

High-Precision Rapid Aluminum Tooling & Hardened Steel Production Molds from 100 to 100,000+ Parts.

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DIRECT METAL & POLYMER

Industrial 3D Printing (SLA / SLS / SLM / DMLS)

Direct Metal Laser Sintering (DMLS/SLM) & High-Resolution Resin/Nylon Additive Manufacturing.

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HIGH-VOLUME CASTING

Precision High-Pressure Die Casting Services

Automated Cold & Hot Chamber High-Pressure Die Casting for Aluminum, Zinc & Magnesium Alloys.

View Technical Specifications
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