Polyurethane Vacuum Casting Service with Silicone Molds
Unionfab delivers precision vacuum casting service using polyurethane (PU) resins and silicone molds, ideal for prototyping and low-volume production. Our process ensures dimensional accuracy within ±0.2% per millimeter and surface roughness as low as Ra 1.6 μm, supporting parts up to 1500 × 1000 mm. With a 7–10 day lead time, we help you accelerate product development.
Key Selling Points
- ±0.2% Tolerance: Dimensional accuracy of ±0.2% per mm ensures reliable fit and function for critical prototypes.
- Smooth Surface Finish: Achieve Ra 1.6–6.3 μm as-cast, reducing post-processing needs.
- Large Part Capability: Produce parts up to 1500 × 1000 mm to accommodate sizable components.
- Fast Turnaround: 7–10 day lead time supports rapid iteration and tight project schedules.
- Material Flexibility: Choose from ABS-like, PC-like, PP-like, nylon-like, and more to match required mechanical properties.
Technical Specifications
| Parameter | Value |
|---|
| Tolerance | ±0.2% / mm (min. ±0.2 mm) |
| Surface Roughness (Ra) | 1.6 – 6.3 μm (as-cast) |
| Max Part Size | 1500 × 1000 mm |
| Lead Time | 7 – 10 days |
Models and Options
Our vacuum casting service supports a range of polyurethane materials tailored to your application, including flame-retardant and high-temperature-resistant variants.
Materials and Structure
We cast parts in ABS-like, PC-like, PP-like, nylon-like, PMMA-like, POM-like, rubber-like, and silicone-like materials. The process uses silicone molds for excellent detail reproduction.
Applications
Ideal for automotive, medical, industrial equipment, drones, robotics, and consumer electronics, our service supports everything from functional prototypes to bridge production.
Customization
We offer material selection guidance to meet your specific mechanical, thermal, and regulatory needs.
FAQ
What is the minimum order quantity?
We support low-volume production, typically from one piece, but exact MOQ depends on your project requirements.
Can you achieve flame-retardant properties?
Yes, we offer flame-retardant resin options for applications requiring higher safety standards.
How large can the cast part be?
Our maximum part size is 1500 × 1000 mm.
What is the typical lead time?
Standard lead time is 7–10 days, depending on part complexity and quantity.
Can you handle high-temperature applications?
We provide high-temperature-resistant materials suitable for demanding environments.
Is surface finishing available?
We offer as-cast surface with Ra 1.6–6.3 μm; secondary finishing can be discussed.
Do you support custom colors?
Yes, custom color matching is available upon request.
How do you ensure quality?
Our rigorous process and quality inspections ensure compliance with your specifications.
Inquiry Information
Contact Rachel Wen: marketing@unionfab.com | +86 182-2160-3447 | WhatsApp: +86 182-2160-3447. Address: No. 518 Xinzhuan Rd., Building 40, Songjiang High Science Technology Park, Shanghai, China.
Product Images
Figure 1: Sample of PU vacuum cast part.
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