Umicore Sealing 691 EL
Protection for technical precious metal surfaces
Umicore Sealing 691 EL is a perfect all-rounder to protect technical precious metal surfaces including electrical contacts. The coefficient of friction will be reduced enormously, the sliding performance of connectors will be improved, and even under strong mechanical stress, the functional layer is protected for much longer. In addition, Umicore Sealing 691 EL prevents tarnishing and discolouring. Silver surfaces treated with Umicore Sealing 691 EL as a final layer produce outstanding results in K2S tests.
There are no disadvantages in using Umicore Sealing 691 EL: Electrical characteristics are unchanged, and solderability and contact resistance are unaffected. In addition, Umicore Sealing 691 EL is easy to use: either in a simple dipping process or by electrolytic application for very short contact times in reel-to-reel plating. Finally, Umicore Sealing 691 EL is free of chromium and doesn’t contain environmentally harmful substances like CFCs, CHCs and HCs.
The information and statements contained herein are provided free of charge. They are believed to be accurate at the time of publication, but Umicore makes no warranty with respect thereto, including but not limited to any results to be obtained or the infringement of any proprietary rights. Use or application of such information or statements is at the user´s sole discretion, without any liability on the part of Umicore. Nothing herein shall be construed as a license or recommendation for use, which infringes upon any proprietary rights. All sales are subject to Umicore´s General Conditions of Sale and Delivery.