Saltel Expandable Steel patch is a permanent solution to repair a zone of damaged tubing or casing, shut off unwanted perforations, seal a leaking sliding sleeve, or perform other remedial operations. Saltel patch expands against the casing wall with an inflatable setting tool, in several steps. The Patch creates a high-pressure inner lining with minimal loss of diameter. The Patch is built with high-quality stainless steel and an elastomer, graphite, or a high-temperature PTFE outer skin. The Patch also comes with a profiled sealing system.