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PTFE tape used for different sized fittings PTFE tape for natural gas. There are two US standards for determining the quality of any thread seal tape. MIL-T-27730A (an obsolete military specification still commonly used in industry in the US) requires a minimum thickness of 3.5 mils and a minimum PTFE purity of 99%. [3]
Toupee tape Invisible double-sided tape used to attach hair pieces or to hold delicate fabrics against the skin. Reflective tape High-visibility adhesive tape with retroreflective sheeting. Thread seal tape Polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads. Ultra-high-molecular-weight polyethylene tape
Some PTFE parts are made by cold-moulding, a form of compression molding. [43] Here, fine powdered PTFE is forced into a mould under high pressure (10–100 MPa). [ 43 ] After a settling period, lasting from minutes to days, the mould is heated at 360 to 380 °C (680 to 716 °F), [ 43 ] allowing the fine particles to fuse ( sinter ) into a ...
It differs from the polytetrafluoroethylene (PTFE) resins in that it is melt-processable using conventional injection molding and screw extrusion techniques. [2] Fluorinated ethylene propylene was invented by DuPont and is sold under the brandname Teflon FEP .
Box-sealing tape, parcel tape, packing tape, or shipping tape is a pressure-sensitive tape used for closing or sealing corrugated fiberboard boxes. It consists of a pressure-sensitive adhesive coated onto a backing material which is usually a polypropylene or polyester film which is oriented to have strength in both the long (machine) direction ...
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Useful comparison tables of PTFE against FEP, PFA and ETFE can be found on Chemours' website, listing the mechanical, thermal, chemical and electrical properties of each, side by side. [1] ETFE is effectively the high-strength version of the other three in this group. ETFE film is self-cleaning (due to its nonstick properties) and recyclable. [2]
PTFE has a higher melting point and is more crystalline than PCTFE, but the latter is stronger and stiffer. Though PCTFE has excellent chemical resistance, it is still less than that of PTFE. [22] PCTFE has lower viscosity, higher tensile strength and creep resistance than PTFE. [1] PCTFE is injection-moldable and extrudable, whereas PTFE is ...
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