PTFE Filter Bags – High Temperature & Chemical Resistant
PTFE (polytetrafluoroethylene) filter bags are a specialized type of filter bag used in filtration applications. PTFE is known for its hightemperature resistance, acid and magnetic resistance, corrosion resistance, and smooth surface. In the chemical industry, these bags perform exceptionally well under extreme conditions. PTFE (polytetrafluoroethylene) filter bags are suitable for industries with high acid content, and they can be used in a pH range of 1 to 14. PTFE (polytetrafluoroethylene) filter bags can withstand temperatures up to 260 degrees Celsius and are widely used in the chemical, pharmaceutical, and other industries. These bags have excellent chemical compatibility, capable of withstanding benzene, solvents, aromatic compounds, strong acidic solutions, and strong alkaline solutions.
Parameter | Specifications |
Material | 100% Polytetrafluoroethylene (PTFE), may include ePTFE membrane |
Filtration Rating | 0.1 micron – 100 micron |
Max. Temperature | • Continuous: 260°C (500°F) • Peak: 300°C (572°F) |
pH Resistance | 0-14 (resists all acids/alkalis, including HF) |
Burst Strength | ≥ 1.2 MPa (174 psi) |
Surface Properties | Hydrophobic, Non-stick, Low Protein Binding |
Seam Type | Pure PTFE Welding (no adhesives) |
End Options | PTFE-coated SS316 ring / Heat-resistant stitching |
Certifications | FDA, USP Class VI, REACH, ISO 9001 |
Applications | • Pharma/Biotech • Chemical Processing • High-Temp Dust Collection |
Special Features | • Steam Sterilizable • Zero Fiber Shedding |
Why Choose PTFE?
✔ Unmatched Chemical Resistance – Withstands even hydrofluoric acid (HF)
✔ Highest Temperature Tolerance – Operates continuously at 260°C (500°F)
✔ Non-Stick Surface – Prevents clogging and simplifies cleaning
✔ Biological Safety – USP Class VI certified for pharmaceutical use
Package & Delivery

Service Provide:
OEM service, printing or logo information is acceptable.