Fluoropolymer Lining

Fluoropolymer Lining
Fluoropolymer Lining
Fluoropolymer Lining
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Fluoropolymer Lining Services

Fluoropolymer linings designed for industrial and semiconductor manufacturing applications, offering high purity, non-toxicity, and wide temperature resistance (–190°C to 260°C) to enhance product quality, extend service life, and solve complex process challenges.

Fluoropolymer Lining for Industrial Applications
Fluoropolymer Lining for Semiconductor Manufacturing
Fluoropolymer Lining Processes Available
  • Fluoropolymer Lining for Industrial Applications
    PFA lining, PTFE (F4) lining, ECTFE (F30, Halar) lining, PVDF lining, high purity of G1-G3
  • Fluoropolymer Lining for Semiconductor Manufacturing
    PTFE (F4) lining, PFA lining, N-PTFE (modified PTFE) lining, high purity of G3-G5
What Makes Us Unique

Our PTFE lining sheets meet strict physical property standards, with a density ranging from 2.14 to 2.20 g/cm³, tensile strength between 250–350 kg/cm², and elongation ≥250%. The welding strength between PTFE sheets and PFA welding strips exceeds 90%, ensuring solid, reliable bonds that perform well in chemically aggressive and high-purity environments.

  • PTFE coated fiberglass fabric
  • PTFE panel after sodium treatment
  • Adhesive for temperatures below 100°C
  • Adhesive for 150°C and 200°C applications
  • PFA welding rods (round/flat)
Selection Guide of Fluoropolymer Lining
Corrosion Protection Grade Process Selection Corrosion Protection Thickness Typical Color Raw Material Brand Purity Grade
Fluoropolymer Lining for Industrial Applications PTFE (F4) lining 2mm-5mm White Chemours/DuPont (USA) Daikin (Japan) Dongyue Group (Shandong,China) G1-G3
PFA lining 1.5mm-4mm Transparent Chemours/DuPont (USA) Daikin (Japan) Yonghe (Zhejiang,China)
ECTFE (30,Halar) lining 2mm-4mm Transparent Solvay (USA)
PVDF lining 2mm-4mm Transparent Arkema (France)
Fluoropolymer Lining for Semiconductor Manufacturing PTFE (F4) lining 2mm-5mm White Chemours/DuPont (USA) Daikin (Japan) G3-G5
PFA lining 1.5mm-4mm Transparent
N-PTFE (modified PTFE) lining 2mm-4mm White
Lining Process Flow
  • Incoming inspection
  • Grinding and smoothing
  • Vent hole perforating
  • Thermal degreasing
  • Grit blasting
  • Surface cleaning
  • Adhesive application
  • Vent line layout inside the vessel
  • PTFE panel bonding
  • Panel edge trimming
  • V-grooving on panel
  • Welding with round PFA rods
  • Welding with flat PFA rods
  • Holiday pinhole detection of weld seam
  • Bright light inspection of weld seam
  • Steam pressure holding
  • Resistivity testing
  • Cleaning
  • Nitrogen sealing (optional)
We Provide Expert Lining Applications
  • Vessel shell welding
  • Sandblasting of the base material
  • Adhesive application on panels
  • PTFE panel bonding inside the vessel
  • PFA welding (round/flat rods)
  • Fusion welding of nozzle
  • Holiday spark test
  • Final inspection of nozzle welding
  • Hydrostatic insulation
  • UV inspection & steam pressure test
  • Air tightness test
  • Final cleaning and nitrogen sealing
Examples of Fluoropolymer Lining Applications

For large or immobile equipment that cannot be easily transported, we also provide on-site fluoropolymer lining services to ensure efficient processing without compromising quality.

  • 280m³ tank with PTFE lining
  • 350m³ on-site PTFE lining by ChiNaite team
  • 550m³ storage tank on-site PTFE lining
  • 500m³ vertical tank interior inspection
  • 500m³ vertical tank with fluoropolymer lining
  • On-site lining service for Tianci
  • Lining for 5m dia. × 28m packed tower
  • Hydrofluoric acid storage tank
    (Ø8m × 12m)
  • Storage tank
    (Ø8m × 10m)
  • Sulfuric acid and nitric acid tanks
    (Ø7m × 12m & Ø6m × 12m)
  • Vinyl acetate storage tank
    (Ø7m × 10m)
  • Sulfuric acid tank
    (Ø6m × 8m)
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