Silicone molded parts

As a leading producer of silicone molded parts, we have been producing a wide range of different silicone parts and components covering a wide range of applications for more than 40 years.

We are glad to put our many years of experience at your disposal, from design consultations and toolmaking to prototype production, sampling and process qualifications. We also manufacture more complex injection molded parts made of liquid silicone (LSR), such as micro seals or silicone articles consisting of two or more components (2K injection molding), quickly and precisely according to your drawings.

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Uses and applications of silicone moldings

Every year Siltec produces more than 10,000 different silicone moldings for a wide range of applications.

Our silicone molded parts are used in systems and equipment, among others to seal, acoustically damp, insulate, protect or fix other elements in place.

Among other things, our silicone molded parts are used as:

  • Aids for the operating room and cell cultivation
  • LED, camera or lens covers
  • Underlays and mats for damping or fixing utensils
  • Seals for intersections
  • Seals in UV lamps, lamps or OP illuminators
Silikondichtungen für Fahrzeugbau- und Straßenverkehr

Legal standards and certificates for silicone moldings

As your competent partner for silicone injection molding, silicone presses and silicone castings we can manufacture your silicone moldings according to different standards:

  • EU Regulation No. 1935/2004
  • and No. 10/2011
  • ROHS
  • BfR
  • KTW
  • RAS
  • W270
  • USP Class VI and EP 3.1.9
  • ISO 10993
  • Proposition 65 (OEHHA)
  • DIN 4102
  • UL 94
  • EN 45545

The required conformity depends on the respective field of application and the applicable regulations.

Would you like advice on our silicone seals or make an enquiry?

Quality features of our silicone molded parts

Our silicone molded parts are manufactured with highest precision and specified quality standards.

Quality features of Siltec’s materials

Siltec’s silicone types have the following properties:

  • Food safe (FDA and BfR compliant) and biocompatible
  • Weather and ozone resistant
  • Age-resistant and long-lasting
  • Steam sterilizable and reusable
  • Low flammability and low toxicity with very low flue gas generation
  • Insulating, damping and thermally separating
  • High temperature resistance (-100 °C to +300 °C)
  • Resistant to hydrolysis and microbes
  • Without plasticizer (BPA)
  • Without animal components (BSE/TSE)

Flexibility in production

Depending on your specific need, the following requirements can be met:

  • High variability of series size
  • Transparent or translucent materials (partial opacity)
  • Definition of colour and shore hardness
  • Definition and adherence to narrow tolerances
  • Low compression set for high seal performance
  • Peroxide-free production process by addition crosslinking
  • PureSil® – process for highest purity
  • Implementation of very low and very high wall thicknesses
  • Extremely low percentage of extractable components
  • Inkjet marking, tampon print marking or laser marking without damaging the material surface

Production of silicone molded parts at Siltec

We manufacture molded parts from both high-temperature cross-linking and liquid silicone (LSR). A broad portfolio of systems enables the production of a wide range of different series from prototypes/pre-series to small batch sizes and series production.

  • Manual and semi-automatic systems are available for small and medium-sized productions, which offer high flexibility due to short set-up times and modular tool concepts.
  • For larger series, fully automatic injection molding machines are available on which continuous production is possible.

The technology portfolio enables the production of a wide range of dimensions. Thick-walled or large-volume silicone molded parts as well as molded parts with large dimensions can be produced on custom-designed systems. For small and micro parts, systems are available that also process low shot weights with high precision. Siltec has extensive experience in the manufacture of silicone molded parts from various material (2K products). Vertical systems enable the incorporation of inserts and cores which can be sheathed, coated or joined with silicone.

Our tool design department has years of experience in creating the right concept for each molded part. The rheological properties of silicone and their impact on manufacturing precision and demolding are considered from the start. For development projects, it is possible to create prototype molds using our own rapid prototyping process, which allow for the production of molded parts in the original material.

Silikonteile für die Industrie

Silicone molded parts from Siltec

Siltec offers a wide range of different silicone molded parts. To give you an impression of the different articles, you will find an excerpt from our product portfolio here:

  • Accessories: LED caps, plugs, diaphragms, closures, belts, plates, shaped pieces, cuffs, edge trims, bellows, spacers, dampers, respiratory masks, device holders, suction cups
  • Seals: Sealing ring, O-ring, flange gaskets, wedge gaskets, flat gaskets
  • Protective elements: protective caps, protective mats, protective covers, protective sleeves, key covers, key protection mats, kink protection sleeves, sleeves, hose sleeves, covers
  • Mats: sterilization mats, anti-slip mats, fixation mats, cutlery fixations for the operating room, storage aids, vibration dampers
  • Buttons: pushbuttons, operating buttons, keys, pads, safety mats
  • Connections: Reusable cable ties, clips, tension straps

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