The present disclosure concerns a method for establishing a heat-expansion compliant protection against environmental damage on a surface of a material susceptible to environmental
attack and connecting a first surface of a material non-susceptible to environmental
attack, i.e. a material resistant to and / or protected from and / or not-exposed to environmental
attack and a second surface of the same or a different material non-susceptible to environmental attack, i.e. a material resistant to and / or protected from and / or not-exposed to environmental attack, in particular a connection opening through a machinery casing, the method comprising the following steps: - covering the surface of material susceptible to environmental attack with a protective liner of a resistant material, - rigidly
coupling and sealing a first end of the protective liner to one of the surfaces of material non-susceptible to environmental attack, - rigidly or non-rigidly
coupling the second end of the protective liner with the other surface of material non-susceptible to environmental attack. The disclosure also concerns a thermally compliant protection liner
coupling system, configured to establish a heat-expansion compliant protection against environmental damage on a surface (1) of a material susceptible to environmental attack and connecting a first surface (2) of a material non-susceptible to environmental attack and a second surface (4, 4') of the same or a different material non-susceptible to environmental attack, in particular a connection opening through a machinery casing, the
system comprising a protective liner (10) of a resistant material, a rigid coupling and seal (14, 14') at a first end (11) of the protective liner (10), configured to rigidly couple said first end (11) with the first surface (2) of material (3) non-susceptible to environmental attack, and a rigid or non-rigid coupling at a second end (12) or portion (13) of the protective liner (10), the rigid or non-rigid coupling being configured to rigidly or non-rigidly couple said second end (12) or portion (13) of the protective liner (10) with the second surface (4, 4') of material non-susceptible to environmental attack.