Fast Custom Silicone Prototypes in 7–15 Days

From CAD design to molded silicone samples, Z.S.R provides rapid silicone prototyping services with engineering support, DFM analysis, and fast tooling manufacturing.

  • ISO 9001:2015 Certified
  • SA8000 / SEDEX 4P Audited
  • 1–100 Prototype Parts in as Fast as 3 Days
  • Prototype Tooling Starts at $599
  • silicone prototype mold

Validate before you commit to mass production

WHY SILICONE PROTOTYPING

Rapid prototyping is the fastest way to validate your silicone part design before mass production. It helps reduce development risk, improve manufacturability, and accelerate your time to market.

Rapid prototyping combined with parallel testing can shorten development cycles by 30–50%.

3-Step from design to molded parts

Step 1

Submit Your Design
(1–3 Days)

Send us your:
CAD / STP / STEP / IGS / PDF drawings
Material requirements
Hardness requirements
Quantity information
Application details

Our engineers will review your files and provide DFM feedback before tooling begins.

Step 2

Prototype Mold Manufacturing (3–7 Days)

We design and machine prototype tooling using:
CNC machining
EDM machining
Aluminum or steel tooling

Depending on your project timeline, budget, and production plan, we will recommend the best tooling solution.

Step 3

Silicone Parts Molding & Delivery (3–7 Days)

After tooling is completed:
Silicone samples are molded
Quality inspection is performed
Parts are packaged and shipped

We can deliver: 1,000–25,000 production parts within 35 business days, 1–100 prototype parts within days

Upload your CAD files and technical drawing to get an instant quote
PDF/ CAD/IGS/STP/STEP/X-T

Get an Instant Quote

Engineering & DFM Support

Tooling Design Support

4 dedicated tooling engineers providing DFM review before mold making. Expert guidance on undercuts, wall thickness, and draft angles.

  • Draft angle recommendations
  • 4 tooling engineers on staff
  • DFM review before mold making
  • Undercut & wall thickness analysis
Mold Machining

CNC + EDM machining with aluminum or steel mold options. Steel-safe critical dimension adjustments after sample testing.

  • Prototype & production tooling
  • CNC + EDM machining
  • Aluminum or steel mold options
  • Steel-safe critical dimensions
Surface Finish

3High-polish surfaces available. Recommended D2 surface finish for optimal silicone release and reduced demolding time.

  • Reduced demolding time
  • High-polish surfaces available
  • D2 surface recommended
  • Optimal silicone release
Materials & Molding

Compression molding, LSR injection, silicone overmolding, and multi-shot insert molding capabilities.

  • Compression molding
  • LSR injection molding
  • Silicone overmolding
  • Multi-shot insert molding

Z.S.R Silicone Parts Rapid Prototyping Capacities

Silicone prototype tooling making, silicone rubber compression molding, LSR molding, silicone over-molding, Multi-Shot insert molding (HCR/LSR/Thermoplastic/Metal)Drawing Type Accepted: PDF/ CAD/IGS/STP/STEP/X-T

Lead time

From 15 business days

Tooling type

Prototype: 10–50pcs
Production: 3000+ pcs

Materials

HCR/HTV Standard Silicone Rubber/LSR; Medical-Grade / Optical-Grade Silicone Rubber, Fluorosilicone (fuel and oil resistant)

Hardness

20A / 30A / 40A / 50A / 60A / 70A / 80A

Machines

Single, cavity, and family molds: 50 to 300 press tonnage, side actions including handloaded

Mold Cavity Tolerances

±0.05 mm when machining, the mold and an additional ±0.128 mm when calculating for shrink rate

Part to Part Repeatability

2-20 mm

Mold Type

Copper, Steel (tool steel, carbon steel) and aluminum; Production grades range from Class S50C a prototype mold, to Class P20, an extremely high production mold.

Size

1mm-650mm

Color

Max available colors in one product: less than 2 colors

Silicone Molding Types

Silicone Compression Molding

Unvulcanized silicone rubber is placed into the mold cavity and cured under heat and pressure. Ideal for simpler geometries and cost-sensitive projects.

Material stateSolid rubber (HCR/HTV)
Best for1–100 pcs samples, 1000–25,000 pcs small batch
CostLower tooling investment
Lead time7–15 days
RecommendedSimpler structures, cost-sensitive projects

LSR (Liquid Silicone Rubber) Molding

Liquid silicone rubber is mixed in a 1:1 ratio and injected into a hot mold through a cold-runner system for fast curing and high-volume production.

Material stateLiquid (two-part A+B)
Best forHigher volume, complex geometries
CostHigher initial tooling
Lead time10–20 days
RecommendedComplex parts, consistency-critical applications

The industry we serve

Due to silicone’s unique properties, it has become one of the most popular elastic materials, and you can find examples of custom silicone rubber prototypes across many industries. Here are some industries where silicone prototypes can be used:

  • medical equipment

Medical Industry

Catheters Implantable cartridge
O-rings, Gaskets and Plugs
Storage devices

  • automotive manufacturing

Automotive Industry

Valve Membranes
O-rings and gaskets
Vibration dampeners

  • food storage boxes

Food/Appliance Industry

Silicone baking dishes
Flexible ice cube trays
Baby bottle nipples

  • electronics and electrical appliances industry

Electronics Industry

Cell phone cases
Gaskets and dampeners
Tactile buttons

Aerospace Industry

Seals, vibration isolators

Industrial

Construction seals, gaskets

Personal Care

Brushes, applicators

Consumer Products

Household goods, accessories

Pet Products

Bowls, toys, feeders

4 Ways to Prototype Silicone Parts — Compared

There is more than one route to a silicone prototype. Mold-based prototyping uses the real production material and process, which is why most engineering teams choose it for functional validation.

MethodLead TimeTooling CostQtyBest ForLimitation
Prototype compression mold (ZSR core service)7–15 daysFrom $5991–100 pcsFunctional parts in production-grade HCR/LSR material; DFM-validated before mass productionSimple to moderate geometries
LSR pilot mold10–20 daysHigher initial tooling100–1,000 pcsComplex geometries, consistency-critical parts, bridge to volumeHigher upfront cost
Vacuum casting (silicone tooling)5–10 daysLow1–20 pcsEarly look-and-feel partsNot the production process; material properties differ
3D-printed silicone (additive)2–5 daysNo tooling1–5 pcsForm exploration onlyLimited materials, poor mechanical properties vs. molded rubber

ZSR specializes in mold-based rapid prototyping — compression molding and LSR injection — so the sample you test is the same material and process as your final production part. That eliminates the most common prototyping risk: approving a part that cannot be manufactured the same way twice.

Lead Time & Volume: What to Expect

Typical timelines from confirmed drawing to shipped parts.

StageStandardExpeditedNotes
DFM review & quote24 hoursSame dayFree with every inquiry
Prototype mold making3–7 days72 hoursCNC + EDM, aluminum or steel
Sample molding & QC3–7 days48 hoursFull dimension report included
Door-to-door total7–15 daysAs fast as 3 daysExpress shipping available
Production after approval1,000–25,000 pcs in 35 days—Same tool continues to production when steel

Prototype Tooling Cost: What Drives the Price

Prototype tooling starts at $599. Four factors decide where your project lands in that range.

Part Size & Cavities

Larger parts and multi-cavity layouts need more machining time. A single-cavity palm-size part sits at the low end; family molds cost more but cut per-part price.

Tool Steel vs. Aluminum

Aluminum is faster to machine and cheaper — right for 1–100 prototype parts. Steel costs more upfront but survives 3,000+ shots, so the same tool goes straight into small-batch production.

Geometry Complexity

Undercuts, side actions and tight tolerances (±0.05 mm) add EDM work. Send the drawing early — our DFM review often suggests small design changes that save real tooling cost.

Surface Finish

High-polish or textured cavities add finishing time. For validation parts, a standard D2 finish is usually enough.

Steel-Safe Design

We machine prototype tools “steel-safe” — critical dimensions left with adjustment stock — so sample feedback turns into corrections, not a new tool.

How to Save

Combine multiple part variants into one family mold, accept standard tolerance where you can, and prototype with the production material the first time to avoid re-validation.

Rapid Prototyping FAQs

The questions engineering buyers ask us most, answered directly.

How fast can I get silicone prototype parts?
Standard door-to-door is 7–15 days from confirmed drawing: 24h DFM review, 3–7 days for the prototype mold, then 3–7 days molding, inspection and shipping. With expedited machining and express shipping, first parts can arrive in as fast as 3 days.
How much does silicone prototype tooling cost?
Prototype tooling starts at $599. The final price depends on part size, number of cavities, steel vs. aluminum, geometry complexity and surface finish. Every inquiry includes a free DFM review with a firm, itemized quote within 24 hours.
What is the minimum quantity for a prototype order?
One. Prototype orders typically run 1–100 parts. For quantities of 1,000–25,000 the same tooling path becomes a small-batch production run with better per-part pricing.
What files do you need to quote a silicone prototype?
A STEP / STP / IGS / X-T CAD file plus a PDF drawing with tolerances, material and hardness requirements, quantity and application. No CAD file yet? A sketch with dimensions or a physical sample works — our engineers can build the model for you.
Can the prototype tool be used for production?
Yes — that is the point of steel prototype tooling. A steel-safe prototype tool validates the design and then continues into small-batch production (3,000+ shots). Aluminum tools are cheaper but limited to short runs, which is why we recommend steel when volumes beyond the prototype are likely.
What materials and hardness can you prototype in?
Standard HCR/HTV silicone from 20 to 80 Shore A, food-grade (FDA / LFGB), medical-grade (USP Class VI), optical-grade, and fluorosilicone for fuel and oil resistance — see the silicone material guide. Prototyping uses the same compound family as production, so test results carry over.
Is 3D printing better than molding for silicone prototypes?
For checking shape and fit, 3D printing is faster and cheaper. But printed silicone has different mechanical properties and cannot validate the real molding process. If you need functional testing or production validation, a molded prototype from the actual compound is the reliable route — and it is what most quality teams require before approval.
Do you sign NDAs for prototype projects?
Yes. Your drawings and designs are protected under NDA as standard practice, and all files are handled on a project-only basis. Note “NDA first” in your inquiry and we send the agreement with the quote.

GET A FAST QUOTE

We accept PDF, CAD, IGS, STP, STEP, and X-T file formats. Solid 3D files in STEP or STP format are preferred for fastest processing.

Typical lead time is 7–15 business days from design submission to molded parts delivery. Complex geometries or special materials may extend this slightly.

Compression molding uses solid rubber (HCR/HTV) placed into a heated mold — ideal for simpler parts and lower volumes. LSR injection molding uses liquid two-part silicone injected into a hot mold — better for complex geometries and higher volumes with faster cycle times.

Yes. Our 4 tooling engineers review every design submission and provide DFM feedback covering wall thickness, draft angles, undercut analysis, and parting line recommendations before any mold is cut.

We generally recommend a D2 surface finish for silicone parts, as glossy surfaces can cause parts to stick to the mold and increase demolding time. High-polish surfaces are available when aesthetics require them.

Yes. Our prototype tooling supports 1–100 pieces for initial validation, and production tooling supports 1,000–25,000 pieces for small batch production. We also offer bridge tooling for smooth transitions to mass production.