The sealing is warranted by our EasyFoam stoppers. These are delivered with the box in the correspondent size. When the cables have been penetrated through the box holes are cut out of the stopper for the cables to run through. A conventional carpet cutter may be used for this. It is recommendable to cut the stoppers a little larger so that they will be fixed in the opening slightly compressed afterwards.

Any other openings left in the edges or between the cables are sealed with a permanently elastic sealing material such as silicone, acrylic or our EasyFoam for fire protection. When many cables have been penetrated we would recommend to use our EasyFoam because working with a silicone cartridge would take too much time.