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| Fluoraz 799 | |||
| Polytetrafluoroethylene | |||
| Product Description | |||
| Sanitary gaskets made from Fluoraz® 799 proivde a level of performance in SIP and CIP systems that surpasses all other elastomers. While EPDMs and FKMs can provide a seal for extended periods, chnages in physical properties can have adverse effects beyond simple volume swell. A decrease in hardness or drop in modulus signals a reduction in compressive strength. If a sanitary gasket is retorqued to the installation specifications, the gasket will be compressed at a greater level than desired, resulting in increased intrusion into the proecess stream. An increased in hardness/modulus and a drop in elongation means embrittlement. The seal will be undertorques, resulting in either leaks or cracking. | |||
| General | |||
| Features | Good Compressive Strength | Low Extractables | Steam Resistant |
| Uses | Gaskets | Seals | |
| Agency Ratings | USP 87 | USP Class VI | |
| Appearance | Black | ||
| Forms | Pellets | ||
| Physical | Nominal Value | Unit | Test Method |
| Specific Gravity | 1.65 | g/cm³ | ASTM D297 |
| Hardness | Nominal Value | Unit | Test Method |
| Durometer Hardness (Shore A) | 90 | ASTM D2240 | |
| Elastomers | Nominal Value | Unit | Test Method |
| Tensile Stress (100% Strain) | 18.1 | MPa | ASTM D412 |
| Tensile Strength (Break) | 20.7 | MPa | ASTM D412 |
| Tensile Elongation (Break) | 120 | % | ASTM D412 |
| Thermal | Nominal Value | Unit | |
| Service Temperature | -7 to 232 | °C | |
| Additional Information | Nominal Value | Unit | Test Method |
| TR 10/50 | 7 | °C | ASTM D1329 |
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