Skip to main content: Vacuum-cast silicone – Elastomer components from 10 to 65 Shore A
The picture shows 1 plastic component from silicone. Thick or thin, simple or complex – silicone is versatile.

Vacuum-cast silicone Elastomer components from 10 to 65 Shore A

System construction space

700 x 600 x 500 mm

Available materials

Elastomer components made of silicone 10 - 65 Shore-A

Optional properties

elastic, transparent, colorable, thermally stable, food grade …

Lead time

4-12 days

Vacuum casting – a process that is ideal for duplicating silicone models. In silicone vacuum casting, a hard shell tool is made of plastic using 3D printing or CNC milling technology. Silicone is then poured into the cavity that forms the component. The models can be used as prototypes, small series or series components.


In terms of strength values, technical prototypes should be as close as possible to the subsequent series products. Our vacuum-casting process optimally meets all requirements in terms of usage properties and permanent load capacity. The range of available plastic material silicone is very wide. We enable you to make components from materials from 10 to 65 Shore-A hardness. The degrees of hardness 43 and 65 Shore-A additionally meet the requirements of food-grade silicone.

Hardness [Shore A] 10 20 25 30 35 42 43 50 55 60 65
Base color white translucent translucent translucent translucent translucent translucent beige beige beige beige
Elongation at break [%]* 600 >800 >650 >500 >400 >350 >300 250 250 250 250
Other             bio + FDA       bio + FDA

* This information is merely provided as a guide and is not intended to be used as the basis for specifications.

Your advantages

  • Fast implementation
  • Fast delivery times: Initial parts within a few working days, small series up to 10 components per day
  • Cost-effective production
  • Fully functional components
  • Shore hardness from 10 to 65 Shore A in small gradations
  • Wall thickness from 0.5 mm
  • Colorable silicone
  • Food-grade, bio-compatible materials with FDA certification (not available in every Shore hardness)
  • Piece numbers from 1 to 1000 parts can be sensibly achieved
  • Suitable for prototypes and series applications


Vacuum-cast silicone

Advice tailored to your needs

At 1zu1, we help you find the perfect solution by combining the best technology with a wide range of materials. And this is implemented in the shortest possible time and with the highest technical precision.

Challenge us. What can I do for your project?

Stefan Rädler

area manager Germany
T +43 5572 33 333-842

» For perfectly implemented ideas, I propose new technological paths with my customers.«

In motocross and enduro, Stefan Rädler is on difficult paths.

Stefan Rädler

area manager Germany
T +43 5572 33 333-842

» For perfectly implemented ideas, I propose new technological paths with my customers.«

In motocross and enduro, Stefan Rädler is on difficult paths.

Klaus Pichler

area manager Austria
T +43 5572 33 333-838

»As a cyclist, I know that excellent technology is the key to speed – and therefore to success..«

Klaus Pichler spends his free time in the saddle – he and his road bike conquer Austria’s mountains with endurance and the right pedal stroke.

Sebastian Mathies

business developer
T +43 5572 33 333-834

»1zu1prototyping, that's like fast food on the level of top gastronomy. And if necessary, with a lot of portions.«

Sebastian Mathies knows that the eye also eats. That's why he chooses the right ingredients, the right technology and the necessary finishing steps. The result: prototypes to your taste.

The vacuum process enables fast, efficient and cost-effective production of desired structural and molded parts. In addition, two different materials (hard and soft) can be combined during production. Inserts (magnets, threads, inserts, etc.) can also be integrated into the component.

The production process takes place in a vacuum or under negative pressure. What is the effect of this vacuum? On the one hand, it ensures bubble-free processing of the material. On the other hand, flow resistance within the mold caused by air pockets is avoided. This means that at 1zu1, we can achieve homogeneous, pore-free material properties.

  • From master model to casting mold:
    • Casting in vacuum
    • For simple components directly via a casting mold in 3D printing or milling technology: For series application 1zu1 recommends 100 to 200 pieces.
  • 3D printing of silicones: 
    • Discharging the material via nozzles or injecting a catalyst into a silicone bath 
    • Cantilevered components are possible 
    • Layered structure visible 
  • Vacuum casting materials: use of original silicone, including food-grade silicone

Polyurethane is the collective chemical term for elastic to hard plastics produced from polyalcohols and polyisocyanates. The curing reaction is a polyaddition. Polyurethanes have many uses, e.g. for the production of household sponges, adhesives, paints and floor coatings. Synthetic textile fibers such as polyurethane are also used in the fashion sector.

SHORE hardness, named after Albert Ferdinand Shore, is an indicator used primarily for elastomers and rubber-elastic polymers. It is directly related to the penetration depth and is thus a measure of the material hardness.

Elastomer materials (PU rubber) are available in various degrees of hardness from  30-90 Shore A. Thermoplastic-like materials are available in degrees of hardness from 45-85 Shore D.

Shore A 30 40 50 60 70 80 90 95        
Shore D             45 55 60 65 70 80

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