hi, i'm not sure that you need to have the cure temperature higher than the highest operating temperature if you are using a very flexible potting material such as rtv (room temperature vulcanizing) silicones. Choosing a very rigid, high temperature curing, potting material most likely wouldn't be a good choice. phil crepeau -----Original Message----- From: Werner Engelmaier [mailto:[log in to unmask]] Sent: Thursday, June 24, 1999 5:15 PM To: [log in to unmask] Subject: Re: [TN] Embedment, potting ...and a cure temperature higher than the highest operating temperature)], and the operational temperature excursions (severity and number). These parameters will determine what accelerated test conditions should be used and if there is an acceleration factor that can be applied.