Silicone Casting Service from a Trusted China Manufacturer

We cast soft, rubber-like and rigid plastic parts from a silicone mold — fast and at low cost. As a China silicone casting manufacturer and supplier, our factory holds ±0.1 mm and copies fine detail with 30+ materials. Upload your CAD file and get a factory-direct quote with free DFM feedback within 24 hours.

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ISO 9001 Certified Factory Quote in 24 Hours NDA Protected Free DFM Feedback

The Problem We Solve

Why Casting Projects Go Wrong

These are the problems buyers tell us about every week. Here is how we take each one off your desk.

Tooling Cost Too High

Hard steel tools cost a fortune and take weeks. A silicone mold costs a fraction of that and is ready in days, so you can test real parts sooner.

Parts Do Not Look Right

Bubbles, wavy surfaces, and bad color matching ruin a good design. We cast under vacuum and check every batch so parts come out clean and even.

Wrong Rubber Feel

Too hard or too soft changes how your part works. We stock silicone and urethane from Shore A10 to Shore D86 so you get the exact feel you need.

Slow, Vague Quotes

Waiting days for a price kills your timeline. Send your files and get a clear, itemized quote with free DFM feedback within 24 hours.

Supplier Says One Thing, Ships Another

No one wants surprises at the dock. We send inspection reports and photos before shipping, so what you approve is what you get.

Files Not Kept Safe

Your design is your business. We treat every file as confidential, sign NDAs on request, and never share your data.

Silicone casting at YiguProto China manufacturer
Silicone casting at YiguProto: precision, speed, and quality in one place

Our Solution

One China Manufacturer, One Accountable Partner

From your master model to a finished, checked part — all under one roof.

With YiguProto as your China manufacturer and supplier, you get one team that owns the whole job. No hand-offs, no blame games, no hidden costs.

  • Factory-direct pricing — no middleman markup
  • Free DFM feedback before you place the order
  • Vacuum casting for clean parts with no bubbles
  • 30+ materials for the exact feel and color you need
  • Strict quality checks and reports on every batch
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Overview

What Is Silicone Casting?

A simple, low-cost way to copy your master part — in rubber or in plastic.

How It Works in Plain Words

We take your master model and build a soft silicone mold around it. Then we pour liquid silicone or urethane resin into the mold, let it cure, and pull out a finished part. One mold can make many copies, so the price per part drops fast.

It is called vacuum casting when we pour under vacuum to remove air. That is how we get parts with no bubbles and sharp detail.

When to Choose Casting

  • 1 to 1000 parts — too many for 3D printing, too few for steel tooling
  • Rubber-like parts — gaskets, seals, grips, buttons, and soft covers
  • Market testing — real parts for trade shows and customer trials
  • Bridge production — sell now while hard tooling is being made
  • Clear or color-matched — lenses, light pipes, and branded parts
  • Tight budget — get real parts without tooling cost

Capabilities

Silicone Casting Capabilities at a Glance

Real numbers so you can spec your part with confidence.

FeatureCapability
ProcessSilicone mold casting & vacuum (urethane) casting
Standard tolerance±0.1 mm (±0.003 in per inch)
Volume1 – 1000 parts
Materials30+ silicone and urethane resins
Shore hardnessSilicone A10–A60 · Urethane A25–D86
Max part sizeUp to 762 mm (30 in)
Mold life20 – 30 parts per silicone mold
Lead time5 – 10 business days

What We Deliver

What Our Silicone Casting Service Covers

Everything you need from one China factory — no extra vendors to manage.

01

Master Making

We 3D print or CNC machine your master model with a smooth finish for a clean copy.

02

Silicone Molds

Soft, flexible molds that copy fine detail and release even tricky shapes with ease.

03

Vacuum Casting

Parts poured under vacuum, so you get no bubbles and a smooth, even surface.

04

Rigid Urethane

Plastic-like parts that act like ABS, PC, or nylon for housings and covers.

05

Rubber-Like Urethane

Soft, tough parts from Shore A25 to A95 for grips, seals, and bumpers.

06

Silicone Parts

Heat-resistant, flexible parts from Shore A10 to A60 for medical and food use.

07

Color Matching

We match your Pantone or sample color and add textures and finishes.

08

Finishing & Assembly

Trimming, painting, printing, and light assembly so parts arrive ready to use.

Not sure which process fits your part? Talk to an engineer for a free review.

Our Solutions

Casting Options to Match Your Part

Different parts need different molds and pours. We pick the best fit for cost, speed, and quality.

BEST FOR SIMPLE PARTS

Block Mold

A solid silicone block built around the master. Simple, low cost, and great for flat or blocky shapes with one parting line.

BEST FOR FAST COPIES

Cut Mold

A one-piece silicone mold cut open to release the part. Cheap and quick, ideal for simple shapes and short runs.

BEST FOR DETAIL

3D-Printed Master Mold

We print a rigid master shell for very fine detail or thin walls, then back it with silicone for support.

BEST FOR NO BUBBLES

Vacuum Casting

Resin is poured under vacuum to pull out air. This gives clean, bubble-free parts with sharp edges and smooth surfaces.

BEST FOR CLEAR PARTS

Pressure Casting

Resin is pushed in under pressure. This is the best choice for clear lenses, light pipes, and thick sections.

BEST FOR OVERMOLD

Multi-Part & Insert Molding

We cast around metal inserts or join two materials in one part, such as a soft grip over a hard core.

Materials

30+ Materials for the Exact Feel You Need

From soft and stretchy to hard and stiff — pick the hardness and look that fits your part.

SHORE A10 – A60

Silicone Rubber

Soft, flexible, and heat-resistant. Great for medical, food-grade, and skin-contact parts.

SHORE A25 – A95

Rubber-Like Urethane

Tough and tear-resistant. Use it for gaskets, seals, grips, wheels, and bumpers.

SHORE D76 – D86

Rigid Urethane

Plastic-like parts that act like ABS, PC, or glass-filled nylon for housings and covers.

CLEAR & COLORED

Clear & Specialty Resins

Water-clear, tinted, or color-matched resins for lenses, light pipes, and branded parts.

Need a special hardness, color, or flame rating? Ask our engineers — we source it.

Surface Finishes

Finishes That Match Your Real Product

Pick a look and we copy it — from dead matte to high gloss.

Matte

A smooth, low-shine surface that hides small marks. A common pick for housings and covers.

Semi-Gloss

A soft sheen that looks clean and premium. Good for consumer products and tools.

High Gloss

A shiny, mirror-like finish for display parts, lenses, and premium enclosures.

Textured

Fine grain or leather-like texture for grip and a molded-plastic look.

Painted

Color-matched paint with a smooth, even coat. We can add logos and masking.

Soft-Touch

A rubbery, grippy feel that is warm to the touch — great for handles and wearables.

Quality Control

Checked at Every Step, Not Just the End

Good parts are made, not sorted. Here is how we keep quality steady.

Master Approval

We check the master model against your CAD before any mold is built.

First-Article Inspection

The first part off every mold is measured and compared to your drawing.

In-Process Checks

We watch cure time, mix ratio, and vacuum level on every batch.

Dimensional Reports

Critical dimensions are measured and recorded for your records.

Visual & Cosmetic Check

Each part is checked for bubbles, short shots, and surface flaws.

Pre-Shipment Review

Photos and reports go to you before the box leaves the factory.

Industries

Industries We Serve

Our China factory casts parts for teams in many fields.

Medical & Healthcare

Soft, skin-safe parts, wearable housings, and device covers.

Consumer Electronics

Housings, buttons, gaskets, and clear light pipes.

Automotive

Interior trims, seals, grips, and under-hood prototypes.

Industrial Equipment

Durable covers, gaskets, wheels, and machine parts.

Robotics & Drones

Lightweight shells, bumpers, and soft gripper pads.

Consumer Products

Handles, grips, toys, and household items in many colors.

How It Works

From CAD File to Finished Part in 6 Steps

1

Upload Your Design

Send STEP, IGES, or PDF drawings. We keep it private.

2

Get a Quote in 24h

Free DFM review and a clear, itemized price.

3

Master & Silicone Mold

We make the master, then build the silicone mold.

4

Vacuum Casting

Parts are cast under vacuum for a clean finish.

5

Finish & Inspect

We trim, finish, and check every part.

6

Ship to Your Door

Worldwide shipping with tracking and reports.

Design Tips

Design Tips for Better Cast Parts

Small changes in your CAD cut cost and improve quality. We check all of these for free.

Add Draft Angles

Give vertical walls a 3°–5° draft so the part releases cleanly and lasts longer.

Keep Walls Even

Thick and thin walls cool at different rates. Keep walls even to avoid warping and sink marks.

Round the Corners

Sharp inner corners trap air and crack. Add a fillet to spread stress and help the resin flow.

Plan for Undercuts

Undercuts need special molds. Tell us early so we can design the right parting line.

Mind Thick Sections

Very thick parts can bubble or shrink. We may cast in stages or add a core to keep it solid.

Add Textures on the Master

Texture on the master copies into every part. This saves cost over adding it later.

Send your file and we will return a free DFM report with clear, plain-English advice.

Why YiguProto

Why Teams Choose Our China Factory

A partner who answers fast, quotes clearly, and ships on time.

Direct Factory Pricing

You buy from the maker, not a trader. That keeps your cost low and your margins healthy.

Fast, Clear Quotes

Most quotes come back in hours, never more than 24 hours, with free DFM feedback.

Low-Volume Friendly

No strict MOQ. We happily run 1 part or 1000 parts from the same process.

Engineers Who Speak Plain English

You get clear advice, not jargon. We explain trade-offs so you can decide with confidence.

Quality You Can Check

Reports and photos before shipping mean no surprises when the box arrives.

One Partner, Many Processes

CNC, 3D printing, molding, and casting under one roof. Scale up without changing suppliers.

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Trusted Worldwide

Companies Around the World Rely on Our Casting Service

"We needed rubber-like prototypes fast and on budget. YiguProto delivered in days, and the parts felt just like our final product. The DFM notes saved us a costly redesign."

— Product Manager, U.S. medical device company

"As a startup we could not afford steel tooling. Their silicone casting let us test real parts with real customers before we spent a cent on production molds."

— Founder, European hardware startup

"Clear color matching, clean surfaces, and steady quality across every batch. We have used them for three years and they still deliver on spec and on time."

— Engineering Director, Australian consumer brand

12+
Years in Manufacturing
3,000+
Molds Built
50+
Countries Served
ISO 9001
Certified Factory

FAQ

Silicone Casting — Frequently Asked Questions

Silicone casting is a way to copy a master part with a soft silicone mold. We pour liquid silicone or urethane into the mold and let it cure. It is a fast, low-cost way to make 1 to 1000 rubber-like or plastic-like parts without hard steel tooling.
The mold is always made from silicone rubber. The part itself can be cast in silicone or in urethane resin. Silicone gives a soft, rubber-like, heat-resistant part. Urethane can be rigid or rubber-like and copies fine detail and color very well. We help you pick the right one.
Our standard tolerance is ±0.1 mm on most features, or about ±0.003 inch per inch. Tell us your key dimensions and we will confirm feasibility during the free DFM review.
Upload your 3D CAD files and tell us your material, quantity, and finish needs. Most quotes come back within a few hours on business days, and never more than 24 hours. Every quote includes free DFM feedback.
We prefer STEP (.stp, .step) or IGES (.igs, .iges) files for clean geometry. We also accept SolidWorks, Inventor, Creo/ProE, Parasolid (.x_t), and STL files. 2D PDF or DWG drawings are welcome for tolerances and notes.
There is no strict MOQ. We support one-off prototypes and small bridge runs from 1 to 1000 parts. The silicone mold is reusable, so the price per part drops as quantity goes up.
We offer over 30 materials. Soft silicone from Shore A10 to A60, rubber-like urethane from Shore A25 to A95, rigid urethane like ABS-like (Shore D76-80), PC-like (Shore D82-86), and glass-filled nylon-like. We also offer clear and color-matched resins.
A silicone mold usually makes 20 to 30 parts before it wears out, depending on part shape and resin. We make extra molds at the start so your full order ships without delay.
Typical lead time is 5 to 10 business days after you approve the master and DFM report. Simple parts can be faster. We confirm the exact date in your quote.
Yes. All customer files and ideas are treated as confidential. We sign NDAs when needed and never share your data.
Yes. Our engineers review your design and suggest changes that cut cost, improve quality, or speed up delivery. You get the report before you order.
Yes. As a China manufacturer and supplier we ship to customers worldwide with tracking, full inspection reports, and export documents included.

Need Silicone Casting from a trusted China manufacturer?

Send your files and get a factory-direct quote within 24 hours.

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