WEVO-CHEMIE introduces WEVOSIL 23010 and WEVOSIL 23030, two new liquid silicone rubbers (LSRs) specially developed for silicone textile coatings and sealing applications (CIPG/FIPG). Both systems combine excellent processability with high elasticity, temperature resistance and adhesion. They open up new possibilities for precise and automated manufacturing processes using dispensing on textiles, plastics and metals.
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Ideal for use under wide range of environmental conditions
Designed for use under a wide range of environmental conditions, these two new liquid silicone rubbers from Wevo offer a temperature range from –60 to +200 °C and also demonstrate excellent behavior in thermal shock tests. The mechanical properties optimized for these applications further contribute to the materials’ high durability.
WEVOSIL 23010 – a very soft LSR silicone (Shore A 10) – combines high elasticity with robustness, offering an elongation at break of over 900 percent and a tensile strength of 5.5 N/mm². It also provides good initial adhesion on textiles or polymer surfaces without the need for primers.
The material is suitable, for example, as a silicone textile coating to reinforce technical textiles. It can also be used for permanently bonding textile layers and embedded electronics. These properties enable the manufacturing of smart textiles, such as protective clothing for firefighters or military applications as well as sportswear with extended functionalities.
With WEVOSIL 23030, Wevo is expanding its portfolio to include a classic LSR silicone (Shore A 30) offering slightly higher strength and excellent mechanical properties, including an elongation at break of over 500 percent and a tensile strength of 5.0 N/mm². After post-curing, the material exhibits good adhesion to substrates such as metals and plastics, making it particularly suitable for applications with demanding requirements in terms of long-term stability and temperature resistance.
Dispensing opens up numerous fields of application. A key focus is sealing as Cured- or Formed-in-Place Gaskets (CIPG or FIPG) in stacks and bipolar plates for fuel cells and electrolysers, as well as the attachment of electronic components to clothing for extended functionalities.
Suitable for fully or partially automated production processes
Their uniform cross-linking without abrasive fillers means both of these liquid silicones can be precisely and reliably applied in fully or partially automated production processes. In addition, processing parameters such as flow behavior, pot life and curing speed can be accurately adapted to suit individual customer requirements on request. This enables seamless integration into existing production lines or the use of alternative application methods alongside dispensing.
The new LSR materials from Wevo thus provide flexible solutions for precise sealing and functional coatings across a wide range of industries.
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