PTFE (Polytetrafluoroethylene) - Blue Food Compliant
Blue Food Compliant PTFE offers excellent resistance to continuous temperatures up to 260º. It has a high inertness towards nearly all known chemicals and is only attacked by elemental alkali metals, chlorine trifluoride and elemental fluorine at high temperature and pressures. PTFE is insoluble in all solvents up to temperatures as high as 300ºC (572ºF). Certain highly fluorinated oils only swell and dissolve PTFE at temperatures close to the srysalline melting point.
Key Features:
FDA approval
Excellent resistance to continuous service temperature up to 260ºC
Possesses a high inertness towards nearly all known chemicals.
Very good sliding properties
Insoluble in all solvents up to temperatures as high as 300ºC (572ºF)
Temperature : -200ºC to +250ºC
Applications: gaskets, seals, scrapers, guides, slide bearings, insulators, washers and rollers.
Availability
| Sheet Size (mm): |
1200 x 1200 |
| Thickness (mm): |
1.5, 3 |
Other thicknesses can be manufactured to order.
FDA Approved
(Code of Federal regulation 21 CFR CH.1, revised as of April 1, 1999 Edition)
Sections 175.105 - 175.300 - 176.170 - 176.180 - 177.1520 - 177.1550 - 177.2600 - 178.3570.
"Perfluorocarbon Resins" of the Food and Drug Administration/USA Technical Information
| Properties |
Method |
Units |
Specification |
| Specific Gravity |
ISO 1183 |
g/cc |
2,13 - 2,18 |
| Tensile Strength |
ISO 527 |
MPa |
25 - 35 |
| Elongation |
ISO 527 |
% |
250 - 350 |
| Hardness |
ISO 868 |
Shore D |
54 - 60 |
| Flexural modulus |
23ºC |
N/mm2 |
600 - 700 |
Deformation under load
(140Kg/cmq for 24hrs. At 23ºC) |
ASTM D695 |
% |
10 - 13 |
Permanent deformation
(after 24hrs. Relaxation at 23ºC) |
ASTM 695 |
% |
6 - 7,5 |
| Thermal conductivity |
ASTM C 177 |
W ./m.k |
0,24 |
| Friction Coefficent |
ASTM D1894 |
/ |
0,07 (Dynamic) |
Dielectric constant
At 60 Hz to 2GHz |
ASTM D149 |
/ |
2,1 |
| Dielectric Strength |
ASTM D149 |
KV/mm |
20 - 70 |
| Volume Resistivity |
ASTM D257 |
Ohm cm |
>1010 |
| Service Temperature |
|
Cº |
-200/+260 |
| Flamability |
UL 94 |
|
V-0 |
| Melting Point |
|
Cº |
325 - 335 |
| Water Absorption |
ASTM D570 |
% |
0,01 |
Information to be used as a guide only. It corresponds with our current knowledge and indicates possible applications. We cannot guarentee suitability for a specific application. Unless otherwise stated these values represent averages taken from injection moulded samples.
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