Tear Resistant (23 Series)

Tear Resistant (23 Series)

Tear Resistant (23 Series) are the strongest, most durable line of PTFE coated fiberglass belting


Tear Resistant (23 Series)

The DuraFab® Tear Resistant belts are specially processed to increase their overall flexibility and tear resistance, thus making them the strongest, most durable line of PTFE coated fiberglass belting. These fabrics are manufactured from woven fiberglass substrates, leave a minimal fabric impression, possess an optimal PTFE (Fluon®) content, and have a proprietary additive for flexibility. DuraFab® Tear Resistant Belting has excellent flexibility and is ideal for use in small pulley and high-speed packaging applications.

DuraFab® PTFE Coated Belt Characteristics

DuraFab® Belts 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, excellent tensile strength and extremely low elongation (<1%). DuraFab® Belts have received USDA approval for food processing and handling, and are FDA compliant (21 CFR177.1550). In addition, the DuraFab® belts 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).

Typical Applications



  • Rotary band sealing
  • Form fill and seal
  • Over wrapping (Tray packing)
  • Side and End sealing
  • Bundling

Food Products:

  • Manufacture of tortillas, pizza crusts and pitas
  • Baking and cooking of bakery goods and confectionary
  • Cooking and grilling of meat, poultry,fish and vegetables
  • Cryogenic/flash freezing of meat,poultry, fish and vegetables
  • Manufacture of flavorants

Printing and Textiles:

  • Heat transfer press sheets
  • Fabric lamination
  • Garment fusing
  • Processing of natural, synthetic,woven, non-woven, and knitting fabrics

Pulp and Paper:

  • Tissue side sealing


Polymer Processing:

  • Curing and drying of rubber, sponge,foams, and polyurethane glues
  • Manufacture of rubber and vinyl (PVC) backed carpet mats
  • Processing of polyethylene
  • Cooling of bitumen backed tiles
  • Curing of ceramic tiles

Building Products:

  • Manufacture of specialty wood-based products

Chemical Processing:

  • Tank seals and contaminant barriers
  • Gaskets, membranes, seals & diaphragms
  • Corrosion resistant chute, drum,and hopper liners
  • Protective curtains and aprons


  • Production or recycled plastic sheet

Additional applications exist. Contact AFC for more specific information.

Styles Available



(lbs/sq yd)

(lbs/in. of width)

Edge Tear
Warp (grams)

Edge Tear
Fill (grams)

Min. Pulley Dia.

Widths (in.)

23-03 .003″ 0.27 32 760 500 3″ 80
23-05 .005″ 0.48 112 1600 1400 3″ 80
23-06 .006″ 0.54 112 1600 1400 3″ 80
23-10 .010″ 0.94 160 2800 2200 3″ 80
23-28 .028″ Proprietary Proprietary >6400 >6400 10″ 84

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 PIW 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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