Polytetrafluoroethylene (PTFE) composite materials, including those used in high-frequency laminates like RT-duroid® and RO series products, are widely valued for their excellent dielectric, thermal, and chemical properties. However, handling these materials requires adherence to specific safety precautions to ensure user safety and prevent material damage.

General Safety Guidelines

1. Avoid High-Temperature Decomposition:
   • PTFE is stable at high temperatures but can decompose above 260°C (500°F), releasing toxic fumes.
   • Ensure adequate ventilation or use exhaust systems when processing at elevated temperatures.
2. Minimize Dust Exposure:
   • Machining or drilling PTFE composites can generate fine particles.
   • Wear appropriate dust masks or respirators to prevent inhalation.
3. Protect Skin from Fibers:
   • PTFE composites may contain fiberglass reinforcements. Handle with gloves to avoid skin irritation.
4. Prevent Static Discharge:
   • PTFE materials can accumulate static charges. Use grounded equipment during processing.

Processing Safety

1. Thermal Processing:
   • Use controlled heating to avoid exceeding safe temperatures.
   • Monitor temperature profiles closely during lamination, soldering, or reflow processes.
2. Cutting and Machining:
   • Use tools with sharp edges to minimize excessive heat generation and material deformation.
   • Implement dust collection systems to capture airborne particles.
3. Chemical Handling:
   • Avoid contact with sodium etchants or plasma treatments without proper training.
   • Wear gloves and safety goggles when applying chemical treatments.

Storage and Handling

1. Storage Environment:
   • Store PTFE composites in a cool, dry place away from direct sunlight and moisture.
   • Maintain stable temperature conditions to prevent warping or degradation.
2. Mechanical Protection:
   • Avoid bending or heavy stacking, as PTFE composites can deform under pressure.
   • Handle with care to prevent surface scratches or damage.

Waste Management and Environmental Considerations

1. Disposal of Waste:
   • PTFE materials are non-biodegradable. Dispose of them according to local regulations for non-hazardous industrial waste.
   • Do not burn PTFE waste, as it can release harmful gases.
2. Recycling:
   • Consult with suppliers or recycling facilities to explore recycling options for PTFE materials.

Health Precautions

1. Inhalation Risks:
   • Decomposition fumes can cause polymer fume fever, a temporary flu-like condition.
   • If fumes are inhaled, move to fresh air immediately and seek medical attention if symptoms persist.
2. Eye Protection:
   • Wear safety glasses when machining or handling materials to prevent dust or fibers from entering the eyes.
3. Emergency Measures:
   • In case of skin contact with chemicals, rinse thoroughly with water.
   • If PTFE dust or fibers are ingested or inhaled, consult a medical professional.

Regulatory Compliance

• Ensure all handling and processing comply with OSHA, RoHS, and REACH safety standards.
• Review and follow the material safety data sheet (SDS) provided with the product.