Electronic Products & Technology

Dual-curing sealant serves automotive electronics

Stephen Law   

Electronics Interconnect Production / Materials connectors curing sealant

DELO DualBond GE4918 light and humidity-curing sealant for connectors often used in vehicle control units or sensors, provides improved pin sealing properties, increases connector life, and allows efficient production. Product has been optimized for reliable sealing for silver coated connector pins. It adheres well to the mercaptan coating, and also adheres to the typical connector housing materials PA and PBT, even under the stringent conditions of the automotive sector. Sealant is flexible in the cured state, and also compensates for the different thermal expansions of metal pins and plastic housings. Product offers good temperature resistance, up to +150 °C, and is able to keep the connectors tight after thermal shock tests ranging in temperature from -40°C to +150°C. 

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