Can a copper gasket be used more than once?
Some users have reported success in using a copper gasket more than once. However, before attempting to reuse a metal gasket, know that the time required to disassemble a seal once a leak has been detected can be very frustrating, especially if this means interrupting a process or experiment. In most applications, there are more important issues to deal with than a faulty gasket. MDC recommends using a new copper gasket for each seal.