Fiberglass fabric thermal shrinkage hi PTFE tape dimensional instability thlentu ber a ni. PTFE sintering temperature (360-400°C) ah chuan residual weaving stress a chhuak thin. Insum theih loh chuan puan chu a tlahniam a; restrained a nih chuan latent stress chu lock in a ni a, chu chuan adhesive curing (150-200°C) leh end-use heating laiin a hnuah shrinkage a thlen thin. Solution: 400°C-a <0.5% shrinkage nei pre-heat-set fiberglass hmang la, coating hmain residual stress tihbo rawh.