Silicone Vacuum Casting for Small-Batch Production

Supports ABS, PC, POM, PP, TPU and silicone-like materials for appearance validation and functional testing.

Service Introduction

JUMIAO Rapid MFG specializes in silicone vacuum casting services, using imported mold silicone and high-performance resins to achieve high-fidelity small-batch replication of plastic and soft rubber parts through vacuum casting. Compared to steel mold injection molding, silicone vacuum casting has lower costs and shorter lead times, making it suitable for product design verification, trial production, and market testing stages.

We can provide casting solutions such as ABS-like prototype parts, PC transparent parts, TPU soft rubber components, and nylon structural parts according to different application scenarios, meeting customers' requirements for appearance, strength, and functionality.

Silicone Vacuum Casting Process

1. Master Model Creation

Use 3D printing or CNC machining to create a prototype master model, ensuring dimensional and surface accuracy.

2. Mold Making

Fix the master model in a molding box, pour liquid silicone, and form a flexible mold after curing.

3. Vacuum Casting

Inject PU, ABS, PC or TPU resin in a vacuum environment to avoid bubbles and defects.

4. Post-Processing

After demolding, perform surface treatments such as painting, polishing, silk screening, laser engraving, and electroplating.

Common Casting Materials & Performance Comparison

Material Type	Appearance	Hardness Range	Performance Features	Typical Applications
ABS	White or colored, smooth surface	Shore D 70~80	Good strength, rigidity, paintable	Appearance parts, display prototypes
PC	Transparent or translucent	Shore D 75~85	High strength, impact resistance, high temperature resistance	Transparent parts, functional testing parts
POM (Delrin)	Milky white or black	Shore D 80~90	Wear resistant, low friction, dimensionally stable	Structural parts, gear components
PP	White or black	Shore D 65~75	Good toughness, strong chemical resistance	Lightweight housings, functional testing parts
Rubber-like Material	Black or white flexible material	Shore A 30~90	Soft, bendable, excellent resilience	Seals, protective covers, soft rubber components

Silicone Vacuum Casting Advantages

Low Cost - No steel mold required, mold making cost is only 1/10 of injection molding.
Fast Lead Time - Standard projects can be delivered in 2-3 days, meeting urgent prototyping needs.
High Fidelity - Same appearance and feel as injection molded parts, suitable for display and trial production.
Multiple Material Options - Supports ABS, PC, POM, PP, TPU, silicone-like materials and more.

Technical Parameters

Item	Parameter Range	Description
Dimensional Accuracy	±0.2 mm	Depends on master model accuracy and material properties
Mold Life	10~30 shots	Related to silicone type and resin material
Hardness Range	Shore A 30~95 / D 60~85	Supports both soft and hard rubber systems
Temperature Resistance	-40℃ ~ 120℃	Suitable for most plastic functional tests
Lead Time	2~5 days	Adjustable according to project complexity

Frequently Asked Questions

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Ready for High-Quality Vacuum Casting?

Get precise, production-grade parts with exceptional surface finish. Our vacuum casting service delivers fast turnaround and consistent quality for your low-volume production needs.