2012 SAE® Technical Paper Spotlight
Delphi Gum Based Silicone Rubber Sealing Components are an extension of Delphi's product offerings beyond the standard liquid silicone rubber (LSR) technology currently being used. The wide array of Delphi Gum Based Silicone Rubber Sealing Components includes block seals, grommets, cable seals, housings, and more. Delphi's expertise with advanced sealing materials and manufacturing machines includes using a gum based silicone rubber material process. The components are manufactured with unique processing methods, developed in Delphi's Wuppertal, Germany manufacturing facility.
Offering a high cut resistance and eliminating the need for manual vision control, gum based silicone rubber components are an expansion of Delphi's current sealing choices, enabling increased quality and cost savings. This technology also supports the development for advanced products with a mechanical pierce in the subsequent processing, including Delphi's small gage cable sealing system and flexible printed circuit (FPC) sealing technology.
Benefits
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Grommet
Single wire seal
Housing
Typical Applications
Delphi Gum Based Silicone Rubber Sealing Components are designed for sealing applications in the automotive, industrial and medical markets, driven by the material characteristics and requirements needed.
Specific components include the following:
Custom designed solutions are also available for customer specific applications.
Material Benchmark Comparison
| New Silicone Gum Based Rubber | Liquid Silicone Rubber | Standard Gum Based Silicone Rubber | |
| Cut resistance | ++ | O | O |
| Compression set | ++ | + | + |
| Temp Resistance | ++ | ++ | + |
| Potential part complexity | ++ | ++ | O |
| Cycle Time |
+ | ++ | - |
| High volume production capability | + | ++ | + |
Production of Delphi Gum Based Silicone Rubber Sealing Components in Wuppertal, Germany facility, which uses a different process from liquid silicone rubber.
The Delphi Advantage