LSR dosing system for injection moulding

Perfectly air-free and colour consistent silicone products

The continuously increasing demand for silicone products is based on their special material properties: they can still be shaped even after the initial processing. Since a high elasticity is demanded for many products, this essential difference to many other materials becomes more and more important. Furthermore, the finished products are distinguished by their high temperature stability. This brings about a continuously increasing use in many different industries: from automotive production to household appliances and lifestyle products. Since liquid silicone features only a minor reaction with other materials, it is also perfectly suited for being used in medical engineering.

A major challenge is the fact that the silicone must withstand the demanded application temperatures of -60 to +300 °C. This requires very precise and flawless processing of the low-viscosity 2-component silicone. The machining or production of liquid silicone rubber (LSR) must be carried out in very strictly defined processing sequences, which allow only minor deviations. It is the only way the required properties such as high elasticity and flexibility can be ensured. Moreover, a precise process flow is essential for continuous colour metering. Particularly in case of lifestyle products, the quality is often judged based on colour consistency.

DOPAG dispensing technology for LSR injection moulding
In the field of LSR, DOPAG belongs to the world's leading providers of high-quality system technology. This success is also based on our long-term experience in the processing of LSR for the requirements of various industries. The close cooperation with our customers and project partners ensures that our systems can be precisely tailored to the individual applications which enables the production of first class and high-quality products.

We understand the challenge
The DOPAG dispensing system silcomix ensures stability and reliability in continuous production - the prerequisite for your business success. Based on robust technology, we contribute to making your production a smooth and reliably running one - and this with even shorter setup times.


  • Automotive industry and their suppliers
  • Electrical and electronics industries
  • White Goods
  • Aerospace
  • Medical Technology
  • Sanitary Engineering
  • and many others

silcomix: Our solution for processing of liquid silicone (LSR)

  1. silcomix


    The silcomix PE200 is a compactly designed, electrically driven piston pump, metering and mixing system.