Thepi ya mahiselo yale henhla ya PTFE yina ku tiya ka kahle swinene ka munyu, kambe tindzhawu letinga tsana i leyara yo namarhela xikan’we na makumu ya fiberglass substrate. Maendlelo yo kambela: 1000h neutral salt spray (NSS) test, ku pima ku khomiwa ka matimba ya peel (≥80% swa laveka), ku tsandzeka ku vona (ku tlakusa, ku pfimba), na metal substrate corrosion. Eka tindzhawu tale lwandle na letingana nkungu wa munyu wotala: tirhisa silicone PSA (hayi acrylic), PTFE substrate leyi cheriweke hiku hetiseka, pfalela makumu hi sealant leyinga tiyisela maxelo, naswona chela primer eka swiphemu swa nsimbi.