Lisebelisoa tsa polasetiki tsa li-insulators tse ntlehali tsa terata ea motlakase li entsoe ka polasetiki ea maemo a holimo e nang le li-inhibitor tsa maemo a holimo tsa UV, tse ka sebelisoang nako e telele. li-insulators tse tlase tsa motlakase li entsoe ka polasetiki e tloaelehileng kapa polasetiki e sebelisitsoeng bocha ka ntle le ntle le inhibitor e tloaelehileng ea UV, ka hona e tla ba brittle le lilemo ha e se e sebelisitsoe nako e khuts’oane.