Pipe Entries

Whether it is water or waste, the pipeline must safely get through the barrier that forms the waterproofing foil The penetration seals are perfect way of sealing these holes. We produce them both in LDPE and HDPE.

How to work with the penetration seals

1. Cut a hole in conical part of the penetration seal. The hole should be 20% smaller than the piping diameter.
2. Heat up the conical section of the penetration seal by the LEISTER hot air gun until softened.
3. Place it immediately on the pass-through pipeline as fast as possible to the horizontal insulation.
4. When the material cools down, it shrinks and seals it.
5. If you have used LDPE, weld the flat section of the pipeline entry with the LEISTER hot air gun onto the PENEFOL^® 650, 750 or 800 horizontally placed waterproofing membrane, and press the roller at the same time. The welding joints and the pipeline entry can be locked with a Mastersil binder.
6. If you use the HDPE penetration seal, fit its straight part onto the PENEFOL^® 950 horizontally placed foil using an extrusion weld.