PTFE vs Graphite Gaskets: When to Use Each?

When it comes to sealing under demanding conditions, PTFE and Graphite gaskets are two of the most trusted materials. Both offer excellent performance, but each shines in different environments. Choosing the right one ensures efficiency, safety, and cost savings.

PTFE Gaskets: Chemical Resistance Champion

Polytetrafluoroethylene (PTFE) is best known for its outstanding resistance to chemicals.

Strengths:

• Resistant to acids, solvents, and aggressive chemicals

  
  

• Excellent non-stick and low-friction properties

  
  

• Wide temperature range (up to ~260°C)

Best Applications:

• Chemical plants

  
  

• Food and pharmaceutical industries (FDA-approved grades)

  
  

• Piping systems handling corrosive fluids

PTFE is ideal when chemical compatibility is the top priority.

Graphite Gaskets: High-Temperature Specialist

Graphite gaskets are designed for extreme conditions of heat and pressure.

Strengths:

• Operates in temperatures up to 500°C (and beyond in some cases)

  
  

• Excellent sealing under high pressure

  
  

• Resistant to thermal shock and stress

Best Applications:

• Power generation and refineries

  
  

• High-pressure steam systems

  
  

• Oil & gas industries

Graphite is the go-to material when sealing performance under extreme heat and stress is critical.

Property	PTFE Gasket	Graphite Gasket
Chemical Resistance	Excellent	Good (not for strong oxidizers)
Temperature Range	Up to ~260°C	Up to ~500°C+
Pressure Resistance	Moderate	Very High
Industry Use	Chemical, pharma, food	Power, oil & gas, steam

• Choose PTFE when handling corrosive chemicals and moderate heat.

  
  

• Choose Graphite when working with extreme temperature and high-pressure environments.

Gaskonnect: The Right Match for Your Needs

At Gaskonnect, we guide you in selecting the best gasket material for your system. With certified manufacturers, full documentation, and reliable delivery, we ensure your sealing solution performs where it matters most.

📩 Need samples or expert advice? Let’s find the perfect gasket together.

👉 www.gaskonnect.com