EGTS implements procedures that meet all cases of casing and seal:

- Casing "traditional" by cement mortar water repellent
- Casing synthetic resin mortar ready for use
- Casing and activation by micro-crystallization of concrete
- Epoxy Lining, laminated or not (Specific case sealing and chemical protection for tank, pit, pond and treatment plant)
- Casing per sheet (membrane PVC, OPS, HDPE)
- Casing upper membrane bentonite (process-Volclay CETCO France)
- Tightness under tiles and protection system (SEL)

For references here: casing and sealing resin