Hyflon® MFA is a unique family of perfluoro polymers which combine excellent mechanical characteristics to unique properties such as chemical inertness, high flexural endurance, inherent flame resistance, low surface energy and exceptional dielectric properties. Hyflon® MFA F1540 is a high melt flow rate multi purpose resin with an exceptional stress crack resistance, continuous service temperature up to 225°C and a 13-15 x 10³ cycles flex-life (on a 0.3 mm film, ASTM D2176). Applications: General Purpose; Wire & Cable Applications Features: Flame Retardant; High ESCR (Stress Crack Resist.); High FlowSolvay recommends that only Color Master Batches based in MFA be used. Master Batches based on other fluoropolymers can negatively influence the superior processing and electrical performance of the resin. A list of suppliers can be obtained from your Solvay sales representative. HEALTH SAFETY AND ENVIRONMENT - Hyflon® MFA F1540 is a very inert polymer and it is not harmful if used and handled according to standard processing procedures. If handled inappropriately, it may release harmful toxic chemicals. - Hyflon® MFA F1540 does not contain any RoHS or WEEE substances. PACKAGING AND STORAGE - The Hyflon® MFA F1540 resin is available in 25 kg (55 lbs.) and 500 kg (1102 lbs.) packaging. Though it has an indefinite shelf life, it is recommended to store it in a clean area, protected by direct sun light and possible contamination. Extrusion notes: WIRE AND CABLE PROCESSING GUIDELINES - As with other fluoropolymers, MFA is corrosive in the melt. Therefore all parts coming into prolonged contact with the melt should be made with corrosion resistant materials such as Hastelloy®, Inconel®, Monel® or Xaloy®. Chrome or nickel plating is not recommended since they are typically only sufficient for brief processing tests. - Hyflon MFA F1540 is applied onto wire using tubing extrusion techniques similar to other thermoplastic materials. An overview of the temperature, tooling and equipment requirements are in the following tables. - Many different screw designs can be used. Single-flight screws are recommended while barrier-flights should be avoided. A typical screw design consist of a long feed section, followed by a 2 to 6 flight transition and a 5 to 7 flight metering section. The addition of a block mixing section can improve the processing performance. EQUIPMENT/TOOLING REQUIREMENTS - Line Speed: 200 to 350 m/min (700 to 1200 ft/min) - Draw Down Ratio: 80 to 120 - Draw Balance: 0.96 to 1.04 - Extruder L/D: 20/1 to 30/1 - Screen Pack: Breaker plate only is required. Information provided by Solvay Specialty Polymers. |