Polyurethane Vacuum Casting - Production Quality, Fast

Get injection-molded quality with polyurethane vacuum casting - without injection-molded costs or delays.

Vacuum cast prototype parts produced using CRA 2000 material

Step 1

Upload Design

Begin your vacuum casting project by uploading your design file.

Step 2

Quote & DFM

Receive a detailed quotation and Design for Manufacturing analysis upon acceptance.

Step 3

Manufacturing

After receiving your order, we’ll begin manufacturing your exceptional parts or prototypes. 

Step 4

Shipping

We will ship your custom made parts delivered on-time anywhere in the world. 

What Is Polyurethane Vacuum Casting?

Polyurethane casting (PU or vacuum casting) gives you parts that look and feel injection-molded, at a fraction of tooling cost. Using a 3D printed or CNC machined master and RTV silicone molds, Procision delivers short runs with crisp details, tight cosmetics, and consistent fit. It’s ideal for design validation, demo-ready models, bridge-to-tooling pilots, and small-batch production.

Fast: Typical lead time 7-14 days
High finish: Textures, gloss, tints, and overmold effects
Cost-effective: Production-like parts without hard tooling

Why Choose Procision for Polyurethane Vacuum Casting Services?

Match common plastics like ABS, PC, PP, PA/nylon, PMMA, and soft elastomers (Shore A-D). Options for heat resistance, UV stability, clarity, and glass-filled. Pigments can be mixed into the resin for baked-in color. Silicone overmolding available for grips, gaskets, and soft-touch features.

AnalogueMaterial NameColorDensityHardnessMold Tool Life
FR ABSHei-Cast 8263Milky White1.3Shore 80D15 - 20 Parts
SiliconeRTV-4260Translucent1.1Shore 42A20 - 30 Parts
ABSVC-4280Off-White
Black
1.12Shore 81D15 - 20 Parts
RubberVC-8400Off-White
Black
1.2Lower limit: 40A
Upper limit: 85A
Shore Hardness Tolerance : ± 5A
20 - 30 Parts
PPVC-5690White
Black
1.13Lower limit: 65D
Upper limit: 78D
Shore Hardness Tolerance : ± 5D
15 - 20 Parts
PC/PMMAVC-521HTTransparent1.06Shore 88D10 - 15 Parts
HT ABSVC-223HTBlack1.14Shore 80D30 - 40 Parts
HT ABSVC-6160Light amber1.2Shore 80D15 - 20 Parts
ABS\PCVC-527White
Black
1.15Shore 80D18 - 20 Parts
PA/POMVC-246White
Black
1.18Shore 85D15 - 20 Parts
FR ABSVC-330White
Black
1.2Shore 82D15 - 20 Parts
ABS+GFVC-4280+10%GFOff-White
Black
1.12Shore 84D15 - 20 Parts
PP+GFVC-5690+10%GFWhite
Black
1.13Shore 72D15 - 20 Parts
PC/PMMA+GFVC-521HT+10%GFTransparent1.06Shore 89D10 - 15 Parts
HT ABS+GFVC-223HT+10%GFBlack1.14Shore 82D30 - 40 Parts
HT ABS+GFVC-6160+10%GFLight amber1.2Shore 82D15 - 20 Parts
ABS/PC+GFVC-527+10%GFBlack1.15Shore 82D18 - 20 Parts
FR ABS+GFVC-330+10%GFWhite
Black
1.2Shore 89D15 - 20 Parts
ElastomerEL-3558Amber1.02Shore 90-93A16 - 20 Parts
FR ABS+GFHei-Cast 8263+10%GFMilky White1.3Shore 85D15 - 20 Parts
Food SiliconeHY-E635Translucent1.02Shore A 40±220 - 30 Parts
Clear RubberHei-Cast T0387Transparent1.16Lower limit: 40A
Upper limit: 70A
Shore Hardness Tolerance : ± 5A
20 - 30 Parts
SiliconeESSIL 296Translucent1.1Shore 40A - Shore 42A20 - 30 Parts
ABSHei-Cast 8150Beige
Black
Milky white
1.21Shore 84D15 - 20 Parts
PA/POMDPI 2180White
Black
1.27Shore 87D15 - 20 Parts

Design Tips for Better Castings

Wall thickness

A uniform wall thickness of > 0.75 is recommended.

Draft Angles

Maintain a draft angle of 3-5 deg. for clean demolding.

Complex Features

Avoid thin edges and use ribs/fillets to improve strength.

Master durability

Master patterns must be able to tolerate exposure to +40°C.

Speak with Sales Director Mathieu Windsor about timelines and materials.

Finishing Services

Precision Machining for tight fits

Media blasting & polishing

Painting & pad printing

• Inserts & simple assemblies

• Clear parts and tints

Why Procision?

Certified quality: ISO 9001 & 13485, material verification, traceable lots
Responsive quoting: Detailed cost breakdown in 24–48 hours
No minimums: Scale up or down without penalty
DFM: CAD checks for draft, wall, texture, resin guidance
Remote visibility: Optional process videos for your records

Custom Color Mixing and Matching

Standard colors can be pre-mixed polyurethane casting in the resin, and we can match any Pantone or RAL color for production-quality finishes in matte, semi-gloss and high gloss.

(Pantone®-Matched Vacuum Casting)

ParameterSpecificationNotes
Color StandardPantone® C/U/TCX SeriesProvide PMS code with order
MOQ500g (standard) /
1kg (custom mix)
Per production batch
Lead Time+3 workdaysFor color matching & verification
Material ImpactMay affect cure time by ±5%Requires process recalibration

How PU Casting Works?

1) Master pattern via SLA/SLS or CNC → finished to cosmetic spec.
2) RTV silicone mold poured and cured, then split to create cavity.
3) Casting & cure under vacuum for bubble-free, dense parts, optional overmolding.

Vacuum casting setup showing silicone mold and cast plastic parts

How Does Polyurethene Casting Compare with Other Rapid Prototyping Methods?

Polyurethane vacuum casting delivers show-ready surfaces for low volumes, beating 3D printing on finish and beats CNC on complex shapes per cost. When volumes grow and geometry stabilizes, injection molding is the next step – we’ll help you bridge.

Common Questions about polyurethane vacuum casting

Find answers to questions about Polyurethane Vacuum Casting services and how industries like medical, electronic, agriculture, and consumer products can achieve their goals by working with Procision.

What makes Procision’s PU pressure casting different?

Dedicated Ployurethane casting teams, vetted resins, controlled environments, and ISO-certified QA deliver cosmetic-grade parts on short timelines.

Plastic injection molding uses a dedicated steel tool that is more expensive and takes longer to prepare, and is suitable for high volume production. PU casting is faster, less expensive, and more suited to short production runs or prototypes.

Yes, DFM reviews covering draft, walls, textures, and material choices. We can create master patterns and advice for production migration.

Typical shrink ~0.3% depending on resin and geometry. Post-machining and polish available for tighter fits and optics.

Upload CAD files for a free quote or book a discovery call—you’ll get a detailed breakdown within 24–48 hours.

Speak with Sales Director Mathieu Windsor about timelines and materials.