PTFE filter felt
High-performance PTFE and P84+PTFE composite needle felts engineered for high-temperature and corrosive gas filtration. Ideal for incineration, metal smelting, and chemical processing environments requiring long-lasting filtration with minimal maintenance.
Description
PTFE and P84+PTFE Composite Needle Felts for High-Temperature and Corrosive Gas Filtration
🔍 Engineered for High-Temperature and Chemically Aggressive Filtration
KABORY supplies advanced needle-punched filter media made from pure PTFE and P84+PTFE composite fibers, tailored for industrial gas filtration in extreme conditions — including waste incinerators, non-ferrous metal smelters, and chemical exhaust systems. These felts are specially designed to withstand:
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🔥 Continuous temperatures of 260–280°C, with peak tolerance up to 300°C
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🧪 Aggressive acids, alkalis, and corrosive gases
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💨 High dust concentrations and oxidative environments
📌 Available Product Types
| Product Type | Composition | Typical Weight | Temperature Resistance |
|---|---|---|---|
| Pure PTFE Felt | 100% PTFE Fiber | 700–850 g/m² | Up to 280°C (continuous), 300°C (peak) |
| Composite Felt | 20% P84 + 80% PTFE | ~650 g/m² | Similar performance, enhanced structure |
🏭 Key Applications & Filtration Challenges
♻️ Waste Incineration Flue Gas Filtration
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Gas Composition: SO₂, HCl, NOₓ, dioxins, heavy metals
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Requirements: High resistance to acid gas, particulate capture, and oxidation
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✅ Why it works: P84 fiber provides heat resistance and structural stability; PTFE ensures maximum chemical inertness
🔩 Non-Ferrous Metal Smelting
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Processes: Zinc, copper, aluminum, lead smelting
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Challenges: Metallic fumes, chlorides, fluorides, sustained high heat
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✅ Why it works: P84+PTFE felt combines temperature durability with chemical shielding — ideal for pulse-jet baghouses
🧪 Chemical Processing and Tail Gas Treatment
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Applications: Acid mist removal, fluorine/chlorine gas capture
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Requirements: Filters must resist degradation from continuous chemical exposure
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✅ Why it works: PTFE backbone resists chemical attack; no hardening, brittleness, or pinhole degradation over time
✅ Key Advantages
| Feature | Performance Benefit |
|---|---|
| 🌡️ High Heat Resistance | Continuous operation at 260–280°C, short peaks to 300°C |
| 🧪 Chemical Inertness | Superior acid and alkali resistance across all pH levels |
| 🔗 Dimensional Stability | Maintains shape and filtration efficiency under stress |
| ⏳ Long Service Life | Withstands months of operation without damage or clogging |
| 🧼 Clean Release Surface | Excellent dust cake release, even under sticky or moist conditions |
🧵 Fabric Structure & Surface Treatments
Our PTFE and composite felts can be tailored with surface treatments such as:
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PTFE membrane laminates for sub-micron particle retention
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Oil- and water-repellent finishes for hydrophobicity
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Singed or calendared surfaces for dimensional stability and minimal drag during cleaning
📦 Customization & Conversion Support
We offer ready-to-use rolls or pre-cut components for:
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Filter bag manufacturing
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Pleatable cartridge production
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OEM replacement systems
You can specify:
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Roll width & length
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Weight tolerance
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Finishing treatments
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Composite ratios (e.g. 30% P84 + 70% PTFE)
🌍 Industry Use Cases
Our PTFE and composite felts are widely used in:
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Municipal solid waste incinerators
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Hazardous waste burning systems
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Aluminum electrolysis cells
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Sulfuric acid tail gas recovery
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Chlor-alkali production
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Zinc and copper roasters
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High-corrosion baghouse units