Fluoropolymer Lining
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 Semiconductor Manufacturing- 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
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)
| 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 |
- 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)
- 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
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)
