Calendering – ntama a wɔde PTFE akata so a wɔde mia ahwehwɛ rollers a ɛyɛ hyew ntam wɔ 360-380°C – sesa ɔfasu no nsɛso kɛse, nea ɛma wogyae, sɛnea ɛmma nsu ntumi nkɔ mu, ne mfiridwuma mu adwumayɛ. Ɛtew roughness so fi Ra 0.5-1.0 μm kosi <0.05 μm, ɛto pinholes, ɛma sɛnea ɛko tia ɔsɛe no tu mpɔn, nanso ɛtew tetew ahoɔden ne sɛnea ɛyɛ mmerɛw so. Ɛho hia ma release liners ne anyinam ahoɔden insulation.

Sɛ́ obi a ɔyɛ PTFE ntama a ɛyɛ hyew kɛse no, Jiangsu Aokai New Materials ma wunya adwumayɛfo nhumu. Botae titiriw a ɛwɔ fiberglass soro ayaresa mu ne sɛ wɔbɛkyekye molecule bridge a ɛda inorganic fiberglass ne organic PTFE ntam, sɛnea ɛbɛyɛ a wobesiesie wɔn inc