Some four decades ago, we developed a low-cost flow stopping system called FOAMBAG™, based on the use of expanding resin foam. This effective yet simple technique works on all types of pipe material including cast iron, steel and PE. FOAMBAG™ is extremely versatile and can be used on vertical or tapering pipes, bends and non-standard diameters.

The major advantage of using FOAMBAG™ over conventional flow stopping bags is that far less pipe needs to be exposed resulting in considerably smaller excavations and reduced reinstatement costs. FOAMBAG™ has become an industry standard technique in the UK and has been used in many areas overseas including mainland Europe, the USA, Scandinavia and the Far East.