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Ensinger PEI

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Chesterton 850 Premium Sealing Tape
Categories: Polymer; Tape; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE)

Material Notes: Description: Chesterton® 850 Premium Sealing Tape is a high density, moldable, dry PTFE thread sealing tape. It is a heavy duty, tear-resistant product containing more PTFE per inch than virtually any thread sealing tape on the market today. Chesterton 850 Premium Sealing Tape is chemically inert and seals most types of threaded metal and plastic pipes and bots. It is nonreactive with steam, water, air fuels, refrigerants, acids, alkalies, all solvents, and gases including hydrogen, oxygen, ammonia, propane, butane, and nitrogen. For nitric or mixed acid services, factory should be consulted. Chesterton 850 Premium Sealing Tape is non-hardening and stays pliable without the breakage seen in other PTFE containing tapes. It places a slippery layer of PTFE between mated threads which remains flexible and resists vibration. Connections that might otherwise be destroyed are saved for reuse as tape eases disassembly. Slippage is minimized during application as deep penetration for threads is possible with the soft malleable tape. Joints can be adjusted 90° or more without a leak. Chesterton 850 Premium Sealing Tape is packaged in rugged easy-to carry- spools which protect the tape of dirt and contamination

Features:

  • UL Listed - US Canada
  • Meets MIL-T-27730A
  • Meets USDA requirements for incidental food contact
  • Conforms to FDA21CFR 177.1615
  • Acceptable to oxygen use
  • Non-aging
  • Non-Hardening
  • High density
  • Chemically resistant

Benefits:

  • Stays pliable
  • Always ready to use
  • Requires fewer wraps
  • Resists tearing and breakage
  • Won't clog fuel lines.

Applications: Use Chesterton 850 Premium Sealing Tape as a non-hardening, dry thread sealant for most liquids, gases, pneumatic and hydraulic fittings. Prevents bolts and fittings from seize up to 260°C. Seals all plumbing and most industrial piping threads

Information provided by Chesterton

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Physical PropertiesOriginal ValueComments
Specific Gravity 0.900 g/cc
Thickness 7.50 micronsASTM D374
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 800 psiLongitudinal; ASTM D882
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 260 °C
Minimum Service Temperature, Air -240 °C
 
Compliance PropertiesOriginal ValueComments
FDA Yes
USDA Yes
 
Descriptive Properties
ColorWhite
Pressure Testing>2500 psi
 10000 psiHydraulic

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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