Silicone Extrusion

Silicone square

Silicone square edge from BIW – robust, flexible and customised for your sealing and construction requirements

BIW’s silicone square edges combine high temperature and media resistance with precise dimensional accuracy and flexible customisability. They are the ideal solution for linear seals, frame seals and structural applications – even under extreme conditions.

  • Dimensionally stable and temperature-resistant
  • Individual geometries and hardnesses can be realised
  • Wide range of applications from industry to medical technology

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About the product
Permanently elastic and resistant to compression set
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High dimensional stability and accuracy
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Very good resistance to weathering, UV and ozone
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Wide temperature range: -80 °C to +300 °C
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Free from plasticisers and physiologically safe
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Special functions possible: conductive, adhesion-modified, antibacterial
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Product description

Silicone square edges from BIW are manufactured from hot-vulcanising silicone rubber (HTV) or liquid silicone (LSR) using an extrusion process. They offer excellent resistance to heat, cold, ageing and chemical influences and are ideal for static and dynamic sealing applications.

Typical areas of application include mechanical engineering, apparatus engineering, medical technology, the food industry, vehicle construction and aerospace. BIW adapts the shape, dimensions, Shore hardness and colour precisely to the customer’s requirements – including approvals in accordance with FDA, BfR, KTW or W270.

Thanks to in-house development and assembly, special solutions such as co-extruded sealing profiles, foam versions or surface finishes can also be realised – e.g. for improved gliding properties, electrical conductivity or antimicrobial effect. Squares can also be used to cut out 3D parts later using water jet cutting or to extend the functions of the square by punching.

Technical facts
Hardness
Shore A 30-90 °
Temperature range
-80 °C to +300 °C
Width
1.0 - 250 mm
Strength
0.3 - 30 mm
Processing
Extrusion, cutting, assembly (frames, rings, bonding)
Colours
transparent, customised (e.g. RAL, Pantone, NCS)