For inventory control purposes product name may be followed by an X.

Products labeled PFA 345 and PFA 345 X are equivalent and all information in this document is applicable to both.

Typical Application
Applications for DuPont™ Teflon ® PFA 345 include extruded tubing, wire and cable insulation, injection molded parts, and chemically resistant linings for bellows, valves, fittings, pipes, pumps, and other fluid-handling components.

Description
DuPont™ Teflon ® PFA 345 is a medium melt flow rate fluoroplastic resin available in pellet form. Compared with Teflon ® PFA 340, it offers increased flex life and greater resistance to environmental stress-cracking (Teflon ® PFA 345 offers a typical MIT folding endurance of 50,000* compared to 15,000 in Teflon ® PFA 340). Table 1 shows the typical property data for Teflon ® PFA 345.

Teflon ® PFA 345 is used when traditional extrusion and molding processes are required for producing products with the superior properties of a fluoroplastic resin. Compared to other thermoplastics, the high melt strength and thermal stability of Teflon ® PFA 345 can be used to improve processing rates. Compared with other fluoroplastics, creep resistance at high service temperatures provides a superior balance and level of end-use properties. Teflon ® PFA 345 combines the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.

Properly processed products made from neat Teflon® PFA 345 resin provide the superior properties characteristic of fluoroplastic resins: chemical inertness, exceptional dielectric properties, heat resistance, toughness and flexibility, low coefficient of friction, non-stick characteristics, negligible moisture absorption, low flammability, performance at temperature extremes, and excellent weather resistance.

In a flame situation, products of Teflon ® PFA 345 resist ignition and do not promote flame spread. When ignited by flame from other sources, their contribution of heat is very small and added at a slow rate with very little smoke.

Teflon ® PFA 345 meets the requirements of ASTM D3307, Type III

材料状态 

供货地区 

特性 

用途 

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g/10 min

%

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psi

%

psi

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°F

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ohms·cm

V/mil

V/mil

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%

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sec^-1

Cycles

Weather and Chemical Resistance: Outstanding

特性 may also be described by the following terms: 中等流动性，中等熔融性, High Environmental Stress Cracking Resistance, High ESCR, Stress Cracking Resistant, 良好的耐化学品性，耐化学品性良好, 良好的耐蠕变性，耐蠕变性良好, 良好的熔体强度, Good Electrical Properties, 良好的柔性，柔软的, 韧性良好，不易磨损, 良好的耐候性，耐候性的, 低摩擦系数, Low Moisture Absorption, Low Water Absorption, Water Resistant, Moisture Resistant.

用途 may also be described by the following terms: 管道，管, 电线电缆应用，电线电缆用途, 零件装置, 阀门，阀门部件.