Construction
Tealon TF1570 is a structured PTFE – Gasket – Sheet manufactured by a unique process which provides a high level of fibrillation to overcome the creep relaxation and cold flow problems associated with normal (skived or molded) PTFE sheets. This style is produced from virgin PTFE resin filled with hollow glass micro spheres.
Application / Service
Tealon TF1570 is suitable for service with a wide variety of aggressive fluids, including hydrocarbons, acids, solvents, water, steam, hydrogen-peroxide, refrigerants, etc. The high compressibility of this style makes it particularly suitable for use with stress sensitive and/or fragile flanged joints, e.g. glass, ceramics, plastic, etc. The gasket material was tested to be in conformance per FDA requirement Method 21 CFR177.2260
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Service Limits
| Type | Description | Value |
|---|---|---|
| Temperature Limits | ||
| Minimum | -350°F | |
| Maximum | 500°F | |
| Color | Blue | |
| pH | 0-14 | |
| Available Sheet Sizes | ||
| Thickness | 1/16" or 1/8" | |
| Sheet Sizes | 59" x 59" | |
| P x T* max | 350,000 (12,000)** 250,000 (8,600)*** |
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| * P x T = psig x °F (bar x °C) ** Based on 1.5mm sheet thickness *** Based on 3.0mm sheet thickness |
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Typical Physical Properties
| ASTM Test Method | Property | Value |
|---|---|---|
| F36 A | Compressability Range (%) | 30-50 |
| F36 A | Recovery (%) | 30 |
| 152 | Tensile Stength (MPa) | 14 |
| D792 | Specific Gravity (g/cm³) | 1.70 |
| F38 | Creep Relaxation (%) | 40 |
| F37 A | Sealability (ml/n @ .7 bar) | 0.12 |
| DIN 3535 | Sealability (cm³ / min) | <.015 |