TRISIL uses all types of TRIMET or TRICAT combined with a sponge or
compact elastomer gasket made of silicone, polychloroprene or
polyurethane by bonding. They can be used in lengths or in shapes.
In this case, some holes can eventually be drilled in the elastomer to fix the
various elements.
The TRISIL are very often sticked adhesive for easier installation.
When the surfaces are cleaned, the tolerances respected as are the
installation pressures, the elastomer ensures a watertight bond.