differ slightly from homopolymers in their chemical compatibility. FEP has outstanding electrical properties and UV resistance. Tefzel™ ETFE Film This transparent, thermoplastic film offers a wide range of uses that include heat sealing, vacuum forming, heat bonding, welding, metalizing, laminating, and use as a hot-melt adhesive

1 Satisfactory 2 Fair (usually OK for static seal) Chemical Compatibility Chart The attached information has been prepared in good faith by RAPRA Technology Limited and other sources. Notes: Solutions are aqueous, unless otherwise noted.

A known chemical processor in the industry utilizes PTFE and FEP tubing to protect their agitators in the mixing process.

Chemical Compatibility; Chemical Compatibility. It has a slightly higher coefficient of friction, lower continuous working temperature and is more transparent than PTFE. The only solvents which will attack PEEK are concentrated nitric acid and sulphuric … Fluorinated ethylene propylene (FEP) is a copolymer of hexafluoropropylene and tetrafluoroethylene.It differs from the polytetrafluoroethylene (PTFE) resins in that it is melt-processable using conventional injection molding and screw extrusion techniques. The chemical compatibility of LDPE and HDPE on this chart is tested at 20°C: and 50°C: for 7 days and 30 days (if applicable) with constant exposure. Shop PTFE. Resistance data for FKM applies only to fittings using FKM seals. The information accuracy of these ratings cannot be guaranteed, nor is it a complete list due to the extensive area of this field. Chemical Formula: Concentration: Temperature: Specify Gravity: Viscosity: Vapour Pressure: Materials .

SEARCH CHEMICALS: BY CHEMICALS. Review the chemical compatibility of Teflon® and PTFE with various chemicals, solvents, alcohols and other products in the cart below. Chemical Compatibility Chart For other fluids, concentrations or special implementation, please contact us. For specific chemical resistance advice, please consult Dyneon ’s Application and Product Development team. It is often used for flexible tubing and fluid processing equipment when chemical resistance, high purity, and low stiffness are required.

For chemical resistance information on valves using FPM seals please refer to FPM Chemical Resistance Guide. The compatibility of PEEK with many chemicals at 20°C (68°F) has been investigated and the results for unreinforced grades are given in the table below. FEP has a better gas and vapor permeability and outstanding UV transmission values. Fluorinated ethylene propylene (FEP) is a copolymer of hexafluoropropylene and tetrafluoroethylene.It differs from the polytetrafluoroethylene (PTFE) resins in that it is melt-processable using conventional injection molding and screw extrusion techniques.

It is often used for flexible tubing and fluid processing equipment when chemical resistance, high purity, and low stiffness are required.

A chart of PEEK and polymer chemical resistance.

CHEMICAL COMPATIBILITY.

FEP (fluorinated ethylene propylene) is a tough, flexible copolymer of tetrafluoroethylene and hexafluoropropylene. PTFE Chemical Compatibility Chart: Polytetrafluoroethylene is very non-reactive and ideal for use with most chemicals. PharmaFluor FEP tubing has outstanding chemical and physical characteristics, and processing of PharmaFluor FEP occurs under stringently controlled conditions. Continuous use at the highest allowed pressures and temperatures dramatically reduces the service life of a rubber hose. Although FEP is similar to PTFE, there are a number of important differences.

BY FORMULA . FEP has a better gas and vapor permeability and outstanding UV transmission values.

CHEMICAL RESISTANCE GUIDE ISO 9001:2008 CERTIFIED chemical resistance guide ... and fittings have only a “B” chemical resistance rating. • Resists fungal growth per MS 810B, Method 508 testing.

Polyurethane was not capable of withstanding long-term exposure to the harsh fluids and caused contamination during processing. LDPE HDPE PP PPCO PMP FLPE FEP PFA ETFE PETG PC PSF PS PMMA RESMER™ TPE Silicone PVC Silicone PFA FEP PUR LLDPE PP Chemical, Concentration CAS No. You can also refer to our Chemical Resistance Chart on page 38.

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