Teflon® PFA 345

About
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&&

About

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&&

Product Description
Supplier	Chemours
Generic	PFA
Material Status	Commercial: Active
Features	Weather resistance is good,Good flexibility,Low smoke,Good Electrical Properties,Low coefficient of friction,Good melt strength,Moderate liquidity,Heat Resistance, Good,Solvent resistance,Low moisture absorption,Heat Stabilized,High ESCR,V-0
Availabilitys	North America,Latin America,Asia Pacific,Europe
Process Methods	Injection Molding

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	2.14	g/cm³	ASTM D792
Melt Flow Rate
372℃，5.0kg	5.0	g/10min	ASTM D3307，ISO 12086
Water absorption rate
24hr	< 0.030	%	ASTM D570

THERMAL	Nominal value	Unit	Test method
Melting temperature	305	℃	ASTM D4591

Electrical performance	Nominal value	Unit	Test method
Volume resistivity	1.0E+18	ohms·cm	ASTM D257，ISO 1325
Dielectric strength
0.25 mm	80	kV/mm	ASTM D149
0.25 mm	80	kV/mm	IEC 60243-1
Dielectric constant
1 MHz	2.03		ASTM D150 , IEC 60250
Dissipation factor
1 MHz	< 2.0E-4		ASTM D150 , IEC 60250

FLAME CHARACTERISTICS	Nominal value	Unit	Test method
Flame retardant level	V-0		UL 94
Extreme oxygen index	> 95	%	ASTM D2863，ISO 4589-2

Supplementary information	Nominal value	Unit	Test method
Critical Shear Rate（372℃）	21.0	sec^-1
MIT flexural strength (200.0 µ m)	5.0E+4	Cycles	ASTM D2176

MECHANICAL	Nominal value	Unit	Test method
Shore hardness
Shaw’s D	55		ASTM D2240 , ISO 868
tensile strength
23℃	29.0	MPa	ASTM D3307 , ISO 12086
Tensile strain
Fracture, 23 ℃	300	%	ASTM D3307 , ISO 12086
Bending modulus
23℃	551	MPa	ASTM D790 , ISO 178

Notes
1. Typical properties: these are not to be construed as specifications.
2. Method A (Short-Time)
3. These results are based on laboratory tests under controlled conditions and do not reflect performance under actual fire conditions, current rating is a typical theoretical value.
4. Depending on fabrication conditions
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