PTFE ay-tɛmpracha tep gɛt fayn fayn sɔl sprɛy rɛsistɛns, bɔt di wik pɔynt dɛn na di adhesive layt ɛn di fayv glas sabstret ed dɛn. Evalueshɔn mεtכd dεm: 1000h nyutral sכlt spεy (NSS) tεst, mεzjכr pεl trεnk rεtεnshכn (≥80% nid), vishכnal dεfεkt (liftin, blista), εn mεtal sabstεrayt kכrכshכn. Fɔ marin ɛn ay-sɔlt-fɔg ɛnvayrɔmɛnt: yuz silikon PSA (nɔto akrilik), ful impregnated PTFE sabstret, sial edj wit wɛda-rɛsistant silan, ɛn aplay prayma pan mɛtal sɔfays.