Expanded fiberglass fabric (bulked yarn fabric) hi yarn structure-ah fiberglass fabric pangngai nen a danglamna bulpui ber a ni. High-pressure air jet treatment hmangin glass filaments chhunzawm zelte chu an inthen a, an crimp a, an fluffed a, voluminous, cotton ang chi yarn-ah an siam a ni. Hei hian puan thuk zawk, nem zawk a siam a, thermal insulation tha zawk (trapped air layers), conformability tha zawk, filtration efficiency sang zawk, leh tear/flex resistance tha zawk – tensile strength tlem zawk man a ni. Temperature sang tak gasket, pipe wrap, filter bag, leh oven seal atan hman thin.

Raw material thianghlimna hi PTFE high-temperature fabric performance lungphum a ni. High-purity PTFE emulsion (metal ion awm lo, low-molecular-weight residues awm lo) hian heat resistance (260°C thlenga yellowing awm lo), stable non-stick, leh dielectric strength sang tak a tichiang a ni. Fiberglass tan chuan alkali-free E-glass (Na2O <0.8%) hian temperature sang takah chakna leh insulation a vawng reng a; medium/high-alkali glass hian a ti chhe thin. Weaving sizing agents te chu paih vek chuan carbonization leh delamination a veng thei. Thianghlimna hian service life, food-grade compliance, leh electrical rintlakna a nghawng nghal vek a ni.

Fiberglass fabric pre-drying dik tak hi a hnu lama PTFE coating, resin impregnation, emaw lamination emaw atan a pawimawh hle. Treatment lian pathum: 105-120°C-a moisture removal (a rih zawng a zirin 10-30 min), 300-450°C-a dewaxing/thermal cleaning (LOI <0.1%, avoid>500°C), leh coating hmaa 60-100°C-a preheating. Oven temperature uniformity (±5°C) control, forced dehumidification, silane hmanga siam puan 110°C hnuai lama venhim. Puan hring chu bag sealed emaw, dry room (<30°C, <40% RH)-ah dah rawh.

PTFE high-temperature tape hian salt spray resistance tha tak a nei a, mahse a chak lohna chu adhesive layer leh fiberglass substrate edge te hi a ni. Evaluation dan: 1000h neutral salt spray (NSS) test, peel strength retention (≥80% a ngai), mit hmuh lohna (lifting, blistering), leh metal substrate corrosion tehna. Tuipui leh salt-fog tamna hmun atan: silicone PSA (acrylic ni lo), fully impregnated PTFE substrate hmang la, edge-te chu weather-resistant sealant hmangin seal la, metal surface-ah primer hnawih bawk ang che.

PTFE high-temperature fabric (PTFE-coated fiberglass) hi chemical inert hnaih tak a ni a, mahse thil thenkhat chuan condition bik hnuaiah corrosion a thlen thin. Direct PTFE attack hi alkali metal molten (sodium, potassium), fluorinating agents chak tak (F2, ClF3) temperature sang takah, leh 300°C aia sang alkalis chak tak molten te nen a thleng thin. Indirect corrosion hi hydrofluoric acid (HF), hot concentrated alkalis, emaw phosphoric acid lum te hian coating defects te an luhchilh a, fiberglass substrate an beih hian a thleng thin. Extreme chemical service atan chuan fiberglass tel lo PTFE film thianghlim hmang rawh.

PTFE high-temperature tape hian a chunglam bawlhhlawh (dust, silicone oil), adhesive cohesive failure (residue), emaw substrate bonding chak lo vangin a hman nawn leh hnuah adhesion a hloh thin. A chinfel dan tur: high-crosslink silicone PSA (migration hniam, balanced tack/holding power), PTFE substrate-a primer treatment, fiberglass backing dense, leh hman dan dik (a chung thianghlim, peel lum, 180° angle). Quantitative testing hian hmasawnna a nemnghet a ni.

PTFE high-temperature fabric (PTFE-coated fiberglass) hian a normal operating range -70°C atanga 260°C chhungah thermal shock resistance tha tak a nei a. Temperature cycling chak tak a tuar thei a, eg, -50°C freezer atanga 260°C hot press-a kal. Premium grade te pawh hi 260°C atanga 10°C tuiah a lum nghal vat pawhin an dam khawchhuak thei. Mahse, 300°C aia sang (PTFE’s 327°C melting point hnaih) atanga material shocking chuan cracking leh delamination a thlen nghal ang. Fiberglass substrate hian dimensional stability a pe a; PTFE coating hi a limiting factor a ni.

PTFE high-temperature fabric hi chemical industry-ah hmanraw pawimawh pasarih atan hman a ni nasa hle a, chungte chu flange gasket leh pipe linings (acid/alkalis chak tak a do thei), reactor leh tank linings (metal corrosion a veng a, tihfai awlsam), corrosive flue gas dahna tur filter bag (260°C thleng), ducts tan anti-corrosion expansion joint, anti-adhesion welding pads, composite molding atana release cloth, leh electrical/thermal insulation wraps te a awm bawk. FDA leh UL grade a awm bawk.

PTFE high-temperature tape hi condition bik (10-25°C, 40-70% RH, UV/heavy pressure atanga hla) hnuaia dah hian standard shelf life thla 3-6 (premium grades thla 12 thleng) a nei a ni. Key degradation thresholds: peel chakna chu a tir lama a hlutna 70% aia hniam lo tur a ni; temperature sang taka lakchhuah hnuah adhesive residue a awm lo; rated temperature-ah carbonization emaw cracking emaw a awm lo. Quick checks: manual unwinding feel, 260°C residue test, leh lamination shrinkage test.

PTFE high-temperature fabric (PTFE-coated fiberglass) hian anti-corrosion lining angin a thatna pawimawh pali a pe a, chungte chu chemical inertness (aqua regia, alkalis chak tak tak, solvents te do thei), temperature range zau tak (-70°C atanga 260°C continuous, 350°C peak), dimensional stability (<0.5% elongation), leh non-stick surface (easy tihfai, buildup a veng). Chemical pipeline, desulfurization tower, pickling tank, leh ei tur/pharma hmanruaah te hman thin a ni. FDA grade hrang hrang a awm.