Ku omisiwa i goza ra nkoka eka vuhumelerisi bya malapi ya mahiselo yale henhla ya PTFE. Swihoxo leswi tolovelekeke swikatsa: ku pandzeka (ku hatlisa swinene ku oma, ku tshoveka ka nhlonge yale henhla), ku rhurha ka coating (ti particles ti famba kuya e henhla, ku tsana ka bond yale ndzeni), ti pinholes/blisters (moya lowu khomiweke kumbe steam), swivati swo basa na ku chalking (ku rhurha ka surfactant kumbe incomplete fusion), ku yellow/coking (ku hisa ngopfu ka swiengeteri), delamination (shrinkage stress exceeds adhesion), orange peel (ku nga ringani kahle), warpage (ku hunguteka loku nga ringaniki), ku oma ehenhla kambe endzeni ku tsakama (ku khuluka ka nhlonge swi khoma ndzhongho), na matlhelo yo tiya (coffee-ring effect). Switshuxo swikatsa ti drying profiles leti lawuriwaka, ku nghenisiwa ka moya kahle, na substrate pretreatment.

Lapi ra mahiselo yale henhla ra PTFE ritirhisiwa ngopfu eka indasitiri ya tikhemikhali eka switirhisiwa swa nkoka swa nkombo: ti flange gaskets nati pipe linings (yi lwisana na ti acids/alkalis to tiya), ti reactor na ti tank linings (yi sivela ku bola ka nsimbi, ku basisiwa hiku olova), ti filter bags ta corrosive flue gas (kufika eka 260°C), ti anti-corrosion expansion joints ta ti ducts, anti-adhesion ti pads to welda, lapi ro humesa ra composite molding, na swifunengeto swo pfalela gezi/ku hisa. Tigredi ta FDA na UL ta kumeka.

Switirhisiwa swo hetisa ehenhla leswi cheriweke eka lapi ra fiberglass loko kungase peta PTFE swina nkoka swinene eka matirhelo yohetelela ya lapi ra mahiselo yale henhla ya PTFE. Ti organosilane coupling agents ti endla mabuloho ya molecular exikarhi ka inorganic glass fibre na organic PTFE, leswi tlakusaka matimba ya peel kusuka eka <2 N/cm kuya eka 4-8+ N/cm. Vutshunguri lebyi faneleke byi tlhela byi antswisa ku tiya ka kuhisa (260°C+), matirhelo ya dielectric, na ku tiya ka tikhemikhali. Lapi leri nga tshunguriwangiki ri yisa eka delamination, bubbling, na vutomi byo koma bya ntirho.