Tubes made from high-performance plastics Excerpt: Rollcovers

Heat shrinkable tubing made from POLYTETRA-FLON™-PTFE and Mold-flon™-FEP,-PFA, and -PVDF We manufacture heat shrinkable tubing from POLYTETRAFLON™-PTFE and Moldflon™-FEP, -PFA, and -PVDF. It can be used to protect against moisture, chemical liquids, corrosion, and high temperatures. When a moisture proof connection or media tight closure is required, dual heat shrinkable tubing is the number one choice. The most common shrinkage rates are: • 2:1 or 4:1 for PTFE • 1.3:1 and 1.6:1 for FEP • 1.3:1 for PFA • 2:1 for PVDF Manufacturing special sizes to meet specific customer requirements is our forte....

Technical details: Rollcovers wall thickness barrel length (measured without journal) Compared with conventional coatings, rollcovers Custom covering of parts made from Moldflon™-FEP or -PFA have the We can cover customer supplied rollers weighing decisive advantage of a very smooth surface (no microporosity). During the production process, requires it, the rollcover can also be bonded. In the user benefits from the anti-adhesiveness of the case of heavy rollers, we mount the bonded at the roller. Conventional coatings can achieve layer thicknesses of up to 100 μm, while the use of rollcovers...

Moldflon™-FEP rollcovers — Standard wall thickness 0.50 mm Rollcovers made from Moldflon™-FEP with a wall thickness of 0.50 mm are produced absolutely seamlessly up to a nominal width of 16½ inches, larger sizes with a weld seam. The wall thickness data is nominal; effective wall thicknesses vary slightly, depending on the shrinkage. Please contact us for other nominal widths. Please also get in touch with us if your rollers are at the limit range for diameter and shrinking range. Special manufacturing processes allow us to produce intermediate sizes. Depending on the application, we recommend...

Rollcovers made from Moldflon™-FEP with a special wall thickness of 1.50 mm are available in sizes of up to 17", and produced without seams. We will be happy to assist you if you require other special sizes. The wall thickness data is nominal; effective wall thicknesses vary slightly, depending on the shrinkage. Please also get in touch with us if your rollers are at the limit range for diameter and shrinking range. Special manufacturing processes allow us to produce intermediate sizes. The working temperature, rotation speed, and linear pressure must always be considered interdependent^. Our...

Moldflon™-PFA rollcovers — Standard wall thicknesses 0.60 mm and 1.50 mm The use of rollcovers made from Moldflon™-PFA is recommended with “banana rollers” in which spot loads occur, for example. This is because PFA (visually almost indistinguishable from FEP) has a significantly higher reverse bending strength. Moreover, the temperature resistance is noticeably higher than that of Moldflon™-FEP. We therefore particularly recommend the use of rollcovers made from Moldflon™-PFA for rubber-coated rollers that are operated in the higher temperature range. Rollcovers made from Moldflon™-PFA — Wall...

Rollcovers made from Moldflon™-PFA — Wall thickness 1.50 mm Rollcover, PFA, wall 1.50 mm etched or nonetched, produced without seams Size We supply this product in piece lengths of 100 mm to 6,100 mm. Other lengths available on request. Anti-static, black rollcovers Our anti-static rollcovers are used whenever the electrical conductivity of rollcovers is crucial—e.g., for applications in the paper industry. We shall be glad to advise you on these products. PTFE rollcover, anti-static Size 5"–100" All lengths can be manufactured. Seamless up to 1,200 mm, larger sizes

POLYTETRAFLON™-PTFE • Lowest friction coefficient of any polymer • Very good sliding character-istics—self-lubricating effect • No water absorption, water repellent • Anti-adhesive • Exceptionally large operating temperature range: -200°C to +260°C • Almost universal chemical resistance • Good electrical and dielectric properties • Resistant to superheated steam • Light, weather and radiation resistant • Self extinguishing in acc. with UL 94 V-0 • Physiologically harmless • Suitable for contact with foodstuffs and medical applications • UV resistant • Sterilizable with ethylene oxide and autoclave...

Moldflon™-ETFE • Continuous operating temperature of up to 150°C • Improved mechanical strength and stiffness • High chemical resistance to acids/bases and organic solvents • Resistant to ageing and weather • Self extinguishing in acc. with UL 94 V-0 • Suitable for contact with foodstuffs • Can be joined by electron beam welding Moldflon™ PCTFE • Continuous operating temperature of up to 160°C • Outstanding mechanical properties and good ma-chinability • Suitable for cryogenic applications with temperatures as low as -250°C • High chemical resistance • Self extinguishing in acc. with UL 94 V-0 •...

This table, intended for guidance only, shows typical values obtained with standard samples. The material properties expressly do not constitute any legal basis for specification or design purposes and may deviate substantially depending on the material, components, and processing and operating conditions. 35

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