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Products
> PTFE Fabrics > Premium (21 Series) |
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Product Description
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The DuraFab® Premium Series is specially engineered to meet the most demanding applications. Its extremely smooth, non-stick surface provides the best release, highest dielectric strength, and greatest chemical resistance of any AFC PTFE coated fabric line. These fabrics are manufactured from woven fiberglass substrates, have the highest PTFE (Fluon®) content, and leave little-to-no fabric impressions. DuraFab® Premium Fabrics are excellent for use in the most challenging applications, such as the processing of sticky or gummy materials, or the laminating of printed circuit boards.
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| DuraFab®
PTFE Coated Fabric Characteristics |
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DuraFab® Fabrics are engineered to retain the distinctive properties of PTFE; however, by adding a glass fabric to the matrix, AFC is able to obtain the added benefits of dimensional stability, durability, excellent tensile strength and extremely low elongation (<1%). DuraFab® Fabrics have received USDA approval for food processing and handling, and are FDA compliant (21 CFR177.1550). In addition, the DuraFab® fabrics can operate in temperatures from -400°F (-240°C) under static conditions and -100°F (-73°C) under dynamic conditions up to 550°F (288°C).
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| Typical
Applications |
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Packaging:
 Poly bag manufacturing
Impulse/L-Bar sealing
Form fill and seal
Over wrapping (Tray packing)
Side and End sealing
Blister tray covers
Vacuum pack machines
Food Products:
Non-stick baking, cooking and drying
Food dehydration
Smoking of meat and fish
Flash-freezing meat, poultry and fish
Oven and microwave liners for
home and industrial kitchens
Printing and Textiles:
Heat transfer presses
Fabric lamination
Garment fusing
Polymer Processing:
Vulcanizing presses
Rubber curing presses
Manufacture of filter media
Aerospace, Communications
& Military:
Composite mold release/bonding
Vacuum bagging
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Building Products:
Manufacture of specialty wood-
based products
Vinyl window manufacturing
Chemical Processing:
Tank seals and contaminant barriers
Gaskets, membranes, seals &
diaphragms
Corrosion resistant chute, drum,
and hopper liners
Protective curtains and aprons
Other Applications:
Insulation and protection
Release sheets/separation materials
Printed circuit board manufacturing
Wire and cable insulation and
protection
Manufacture of metalized balloons
Additional applications exist. Contact AFC for more specific information.
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| Styles
Available |
Product
ID |
Nominal
Thickness |
Weight
(lbs/sq yd) |
Tensile Warp*
(lbs/sq in) |
Tensile Fill*
(lbs/sq in) |
Edge Tear
Warp (grams) |
Edge Tear
Fill (grams) |
Full Widths
(inches) |
| 21-03 |
.003" |
0.33 |
56 |
32 |
380 |
250 |
40*, 80* |
| 21-05 |
.005" |
0.51 |
100 |
112 |
800 |
700 |
40*, 80* |
| 21-06 |
.006" |
0.58 |
100 |
112 |
800 |
700 |
40*, 80* |
| 21-11 |
.011" |
1.10 |
200 |
160 |
1400 |
1100 |
40*, 60*, 80* |
| 21-14 |
.014" |
1.30 |
320 |
232 |
3700 |
3200 |
40*, 80* |
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Please note: Additional thickness and styles available upon special order and lead times may vary for different styles and widths.
*Disclaimer: All figures provided in the above table are based upon ASTM D 4969-97, the Standard Specification for Polytetrafluoroethylene (PTFE) Coated Glass Fabric. The above tensile values are based upon the ASTM D828 test method and are not actual values of AFC’s materials. The above tensile values are 80% of the figures provided in Table 6 of specification D579. AFC states that its actual tensile will be greater than the above material specification and that actual tensile values will be provided upon request. Edge Tear values are based upon ASTM D1424 (Elmendorf Tearing Test) and are average values that can vary.
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