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Prototype Development

Vacuum Casting

Production-Like Prototypes Without Production Tooling

Instead of making expensive production tooling before the design is fully validated:

Use silicone tooling to bridge the gap between prototype and production.

 

Vacuum casting is ideal when you need multiple prototypes that look and behave much closer to injection-molded parts without investing in hard tooling.

It is particularly useful for:

01

Product appearance validation

02

Customer demonstration units

03

Functional testing

04

Marketing samples

05

Certification preparation

06

Low-volume pre-production

One Partner. From Engineering to Production.

Identify Risks. Optimize Designs. Validate Products. Scale with Confidence.

TC Precision — Your Engineering & Manufacturing Partner in China.

When Vacuum Casting Makes Sense

Vacuum casting is often the right choice when you need:

More realistic appearance than 3D printing

More consistent parts than one-off prototypes

Production-like materials

Small batches without hard tooling

Multiple iterations before injection molding

Vacuum Casting Capabilities

Actual mold life, accuracy and lead time depend on geometry, material and finish requirements.

Capability

Typical Range

Prototype Quantity

5–50 pcs per mold, depending on geometry

Materials

PU resins, ABS-like, PP-like, PC-like, rubber-like and other formulated materials

Typical Accuracy

±0.1–0.3 mm, depending on part geometry

Surface Finish

Matte, textured, polished, painted, color matched

Part Appearance

Production-like

Typical Lead Time

7–15 working days

Best For

Appearance + functional validation + small batches

What Can Vacuum Casting Prototypes Validate?

Appearance Validation

Assembly Validation

Functional Validation

Appearance Validation

Ideal for checking:

· Product color

· Texture

· Gloss

· Surface quality

· Parting lines

· Product proportions

· Branding and graphics

Assembly Validation

Produce multiple parts to verify:

Housing Fit · Fasteners · Clips · Interfaces · Clearances · Assembly Sequence

Functional Validation

Depending on the selected resin:

· Mechanical strength

· Impact resistance

· Flexibility

· Basic thermal testing

· Repeated assembly

· User interaction

Production-Like Materials

The material should match the test. We can recommend materials based on:

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Hardness

Hardness

Flexibility

Flexibility

Strength

Strength

Impact Resistance

Impact Resistance

Temperature

Temperature

Appearance

Appearance

For example: ABS-like → PC-like → PP-like → Rubber-like → High-temperature formulations. If the prototype will eventually be injection molded, our engineers can also evaluate whether the casting material is sufficiently representative for your intended validation.

Surface Finishing

Vacuum casting can produce much more than raw prototypes.

Options include:

Color Matching · Painting · Texturing · Polishing · Matte Finish · Gloss Finish · Printing · Branding

 

This makes vacuum casting suitable for:

Customer Samples · Investor Demonstrations · Trade Shows · Marketing Photography · Certification Samples

Surface Finishing

From Silicone Mold to Production Tooling

One of the biggest risks in prototype development is discovering manufacturing problems after investing in production tooling.

Our process is designed to identify those risks earlier.

Before Mold Making

Our engineers review:

 

Parting Line · Draft · Wall Thickness · Undercuts · Sharp Corners · Material · Surface Finish

We provide free DFM feedback before the silicone mold is made.

This helps reduce:

 

Mold Rework → Prototype Scrap → Design Iterations → Production Tooling Risk

Prototype Iteration & Version Control

Prototype Iteration & Version Control

We support:

V1 Mold → Test → Design Change → V2 → Validation

Every revision is clearly identified to avoid confusion between old and new versions.

 

Transparent Production Updates

You receive:

Mold-Making Confirmation → Key Process Photos → Casting Updates → Inspection Results

Complete Prototype Delivery

Your prototypes arrive ready for testing, customer evaluation, certification preparation, or production review.

Depending on project requirements:

Vacuum Cast Parts

01

Dimensional Inspection Report

02

Material Information

03

Surface Finish Confirmation

04

Revision Records

05

Prototype Today

Reduce Production Risk Tomorrow

Our DFM review helps make sure that lessons learned during prototyping can be carried into the next manufacturing stage.

Upload Your CAD Files for Free DFM Review