Description Solder Termination Sleeves solder, seal, insulate, and strain relieve critical connections quickly and repeatable in one simple step. The outer heat-shrinkable jacket is a precision engineered high performance fluoroplastic sleeve containing an exactly measured amount of prefluxed solder that assures a perfect connection every time. Wire splices are manufactured to SAE-AS83519/1-1 which ensures connections are completely insulated, encapsulated and strain relieved every single time. Operators do not need any specialized tools or require extensive training.