Discover high-density PTFE sheets filled with barium sulfate. Ideal for high-load sealing applications requiring superior compressive strength and minimal deformation.
PTFE with Barium Sulfate – The Ideal Choice for High-Load, High-Stability Applications
Modified PTFE (Polytetrafluoroethylene) with Barium Sulfate is a high-performance engineering material designed for applications where compressive strength, low deformation, and high dimensional stability are critical. By filling PTFE with fine barium sulfate (BaSO₄), the material gains higher density, improved load resistance, and better creep performance compared to unfilled PTFE or PTFE with silica.
Why Choose PTFE with Barium Sulfate?
While PTFE with silica provides good wear resistance for dynamic applications, PTFE with barium sulfate is specifically engineered for static or semi-static sealing environments requiring minimal cold flow, low deformation, and high pressure tolerance.
Technical Comparison: PTFE with Barium Sulfate vs. PTFE with Silica
| Property | PTFE with Barium Sulfate | PTFE with Silica |
| Density | 2.3~2.5 g/cm³ | 2.1~2.3 g/cm³ |
| Compressive Strength | Higher | Moderate |
| Creep Resistance | Excellent | Good |
| Wear Resistance | Moderate | High |
| Best For | Static seals, gaskets | Dynamic seals, bearings |
| Color | Off-white / Cream | White / Light gray |
Key Features of PTFE with Barium Sulfate:
✅ High Density (2.3~2.5 g/cm³)
Provides improved stability under load and temperature fluctuations.
✅ Superior Dimensional Stability
Low deformation under high compressive forces; ideal for sealing applications.
✅ Enhanced Pressure Resistance
Excellent choice for high-pressure flange gaskets and static seals.
✅ Chemical Inertness
Maintains PTFE’s resistance to most aggressive chemicals and solvents.
✅ Improved Cold Flow Resistance
Ideal for environments where long-term mechanical stability is required.
Applications:
Modified PTFE with barium sulfate is widely used in industries including:
✅Chemical Processing Plants
Gaskets and seals for pumps, valves, and flanges operating under high pressure.
✅Oil & Gas
High-density PTFE bushings and sealing components for upstream/downstream use.
✅Pharmaceutical & Food Industry
FDA-compliant grades available for sanitary sealing solutions.
✅Mechanical & Static Sealing
PTFE envelopes, flange gaskets, and load-bearing liners.
Product Specifications:
| Product Type | Thickness Range | Density | Operating Temp. | Format Available |
| PTFE Sheet with Barium Sulfate | 0.5mm – 50mm | 2.3~2.5 g/cm³g/cm³ | -180°C to +260°C | Sheets, Rods, CNC Machined Parts |
Surface Finish: Molded or skived
Color: Off-white to light cream
Custom dimensions and precision CNC machined parts are available upon request.
Why Choose Us as Your PTFE Supplier?
As an established manufacturer and global exporter of PTFE materials, we deliver:
✅Worldwide delivery with fast lead times
✅ISO-certified production & QC
✅Custom engineering solutions & machining
✅Reliable technical support & material selection guidance
Get in Touch for a Quotation or Technical Data Sheet
Email: info@hiwellplastic.com
Website: https://hiwellplastic.com/
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