Vacuum casting makes it possible to produce multiple identical polyurethane components from a single high-precision master model within a short lead time.

It is particularly suitable for prototypes, pre-series parts, market validation, presentation models and low-volume end-use products.

With the appropriate material and finishing solutions, colour, surface appearance and visual characteristics can be tailored to the required result.

02WHY VACUUM CASTING?

A cost-effective transition before series production.

Vacuum casting becomes especially valuable when multiple identical and realistic parts are required, but investment in injection moulding tooling is not yet justified.

Multiple identical parts

A single high-precision master model can be used to manufacture multiple identical components.

Realistic appearance

Details, surface textures, colours and material feel can be brought close to the final production product.

Flexible development

The design can still evolve without immediately committing to expensive series-production tooling.

Cost-effective low volumes

Vacuum casting provides a practical transition between one-off prototyping and higher-volume series production.

03DECISION SUPPORT

Do you need multiple identical prototypes?Let's see whether vacuum casting makes sense.

Send us your 3D model and required quantity. We will assess whether 3D printing, vacuum casting or another technology provides the best technical and economic result.

Help me choose

04HOW DOES IT WORK?

From master model to finished component.

01Master model

A high-precision physical model is produced from the final geometry.

02Silicone mould

A mould is created from the master model, reproducing its details and surface.

03Vacuum casting

Liquid polyurethane components are cast into the mould under vacuum.

04Post-processing

After curing, the component can be finished and surface-treated as required.

05Finished component

After inspection, the finished parts are ready for testing or end use.

05TYPICAL APPLICATIONS

Multiple identical parts. Multiple development purposes.

Vacuum casting is particularly useful when development requires not just one prototype, but several identical and realistic components.

01Multiple identical prototypes

02Pre-series parts

03Functional testing

04Assembly trials

05Market validation

06Customer and partner presentations

07Photography and marketing materials

08Presentation models

09Low-volume end-use parts

06MATERIAL SYSTEMS

Materials and additives. Tailored to the application.

We select the material system according to the component's function, mechanical loading, environmental conditions and required appearance.

MATERIALS

SikaBiresin UPX 8400

Rubber-like material that can be coloured and adjusted between Shore A 25–95 hardness.

ZAX 60

Blue silicone with Shore A 60 hardness.

Zhermack HT 45

Transparent silicone with Shore A 45 hardness.

SikaBiresin RE 461 / RE 101

Black flexible resin for spark protection in electrical devices. Shore D1 46.

PR700

ABS-like black resin with automotive-grade properties, chemical resistance and good mechanical characteristics. Shore D1 82.

PR777

PP- or HDPE-like, impact-resistant and colourable resin. Shore D1 75.

PRC1810

Transparent / translucent PC-like resin that can be coloured and modified with additives. Shore D1 85.

PRF100

Transparent resin with food-industry certification. Shore D1 82.

PR600

ABS-like resin with good thermomechanical properties and colourability. Shore D1 84.

ADDITIVES

PP0420

Opacifying additive for PRC1810 that diffuses light.

Synfill G

Glass powder additive for PR600, PR700 and PR777 to increase strength.

ESD additive

Provides limited electrical conductivity when mixed with PR600, PR700 or PR777.

Plasticising additive

Makes PR600, PR700 and PR777 more flexible.

Copper / carbon additive

Used to create copper- or carbon-effect appearances.

07TECHNOLOGY SELECTION

When should you choose vacuum casting?

Vacuum casting is not the optimal solution for every component or production volume. Geometry, size, material requirements and surface expectations must all be considered together.

In some cases 3D printing is faster, while at higher volumes RIM moulding or injection moulding may be more appropriate.

Quantity

Multiple identical parts are required, but the volume does not yet justify major production tooling investment.

Appearance

Surface quality, colour, level of detail and visual character should closely resemble the final product.

Validation

The product needs to be presented to and tested by customers, partners or users.

Geometry

Fine details and complex geometric features need to be reproduced.

Development stage

The design may still change based on testing and feedback.

Investment

Injection mould tooling is not yet technically or economically justified.

08NEXT STEP

Already have a model or master part?Let's review the low-volume production route together.

We can discuss the master model, required quantity, material properties and surface requirements.

Request a quote

09MORE THAN A SERVICE

We do more than replicate parts. We consider the complete development path.

We primarily use vacuum casting for projects where quality, flexibility and economical low-volume production are equally important.

From the master model and silicone mould to the material system and finishing process, every stage is tailored to the required result.

Together with 3D printing, RIM moulding and our other technologies, we select the process that best fits the specific product.

Request a quote

Have anidea?

Show us what you want to create.

Tell us briefly about your project, expected quantities and, if available, attach your drawing or 3D model.

GENERAL ENQUIRIESinfo@runplast.hu

OFFICE / FINANCEpenzugy@runplast.hu

PHONE+36 20 553 51 57

FACILITY2119 Pécel, HRSZ. 4082/15