Urethane & Silicone Casting Services | Bridge Manufacturing

Trustbridge provides fast, flexible urethane and silicone casting services through our global network of certified partners. Whether you’re building short-run prototypes, marketing samples, or low-volume production parts, our platform connects your project to the ideal casting partner — matched by material, tolerances, timeline, and finishing needs.

With in-house engineering support and access to advanced vacuum casting, RTV molding, and pressure casting techniques, we help you bridge the gap between prototyping and injection molding. Get production-quality parts without the tooling investment.

What Tolerances Can You Expect?

Casting tolerances vary by part geometry and process control, but our suppliers consistently achieve:

Typical Tolerances: ±0.010 to ±0.015 in (0.25–0.38 mm)
Higher Precision: ±0.005 in (0.13 mm) with controlled geometries and mold design
Surface Finish: Smooth surfaces directly from molds, comparable to injection molded parts
Color Matching: Pantone or custom color matching available with pigmented resins

Our engineering team works with you to plan part geometry, mold design, and process settings for optimal accuracy.

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Materials We Support in Urethane & Silicone Casting

Our network offers an extensive range of castable materials, simulating properties of production-grade thermoplastics and rubbers:

Urethanes (Polyurethanes):
- Rigid (ABS-like, polycarbonate-like)
- Flexible (rubber-like, shore A 30–90)
- High-Temp (up to 120–150°C)
- Clear (PMMA-like)
- Medical and food-safe formulations
Silicones:
- Medical-grade silicone
- Food-grade silicone
- Soft-touch applications
- High-durometer silicone
- Heat-resistant silicone

Need a specific durometer or property? We’ll help you match your desired material with the closest available resin system.

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Technologies in Our Casting Network

We support both urethane and silicone casting workflows using high-precision tooling methods:

RTV Silicone Mold Making – Room temperature vulcanization molds for fast turnarounds
Vacuum Casting – Removes air bubbles and ensures consistent material flow
Pressure Casting – For high-clarity parts or complex geometries
Master Pattern Creation via CNC or 3D Printing – Ensures mold precision and surface finish
Multi-cavity & Multi-shot Molds – For faster turnaround and complex material systems

Our partners are equipped with advanced casting stations, cleanrooms, and color-matching labs.

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Industries We Serve

Casting is ideal for functional prototypes, bridge production, and limited-run parts in:

Consumer Products & Wearables
Medical Devices
Robotics & Automation
Automotive Interiors
Industrial Equipment
Packaging & Display Models
Toys and Soft Goods Prototyping

Trustbridge partners understand the cosmetic and functional requirements unique to your use case.

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Our Global Supplier Network

Our network includes casting specialists vetted for quality, consistency, and turnaround:

200+ casting partners in North America, Europe, and Asia
ISO 9001 and ISO 13485 certified vendors
Fast-turn options for small runs and urgent deadlines
Color-matching & texture replication experts on staff
Integrated CNC + 3D printing hubs for quick master pattern production

Every vendor is pre-qualified for material capability, cosmetic precision, and communication quality.

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Case Study Highlight

Customer: Wearable Tech Startup
Service: Urethane Casting
Challenge: Needed 300 clear, wearable enclosures with snap fits and soft-touch buttons
Solution: Trustbridge routed the job to a dual-shot casting facility with vacuum molding capability
Result: Delivered within 10 business days with production-quality aesthetics and tactile feel

“We couldn’t justify injection mold tooling yet. Trustbridge’s casting partners gave us near-production parts and fast iterations.”
— Founder, IoT Device Startup

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Frequently Asked Questions

What’s the difference between urethane and silicone casting?

Urethane casting is used for rigid and flexible plastic-like parts. Silicone casting is ideal for rubbery, soft, or heat-resistant parts.

Can I get clear or tinted parts?

Yes — we offer water-clear urethanes and pigmented resins in custom or Pantone-matched colors.

How many parts can be made per mold?

Typically 20–25 shots per mold, depending on geometry and resin chemistry.

What file types do you accept?

STEP, IGES, STL, and native CAD files for master pattern production.

Can you handle overmolding or dual-shot parts?

Yes — many partners offer soft-over-hard or two-material casting options.

Why Work With Trustbridge?

Process-Matched Supplier Selection
Metal injection molding requires precision, tooling expertise, and process-specific know-how. Trustbridge connects you directly with vetted MIM specialists — matched based on part complexity, material needs, certification requirements, and scale.

Clarity and Control — No Blind Bidding

Unlike generic sourcing platforms, we don’t hide who’s making your parts. You choose your supplier from a curated list of qualified partners, so you know exactly what capabilities (and limitations) they bring to your project.

Hands-On Engineering Support
From design for injection and debinding to sintering tolerance planning, our team provides technical oversight throughout quoting and production. We ensure your parts are MIM-ready before tooling begins — avoiding costly missteps.

Production-Grade Parts, Lower Cost
By streamlining supplier communication and cutting redundant project management layers, Trustbridge helps you save 30–50% compared to conventional MIM brokers — without sacrificing part quality or delivery assurance.

Scalable MIM from Prototype to Production
Whether you're producing 500 units or 50,000, we match you with MIM suppliers who can grow with your demand — in the U.S., Europe, or Asia — and deliver consistently high-quality metal parts, batch after batch.