UNITREX® Unfilled PEEK

About
Unitrex PEEK is a semi-crystalline high temperature thermoplastic that offers design engineers a truly unique combination of exceptional performance characteristics. When compared with other engineering polymers, this material ranks as the best or nearly the best in every performance category. Unitrex PEEK has a relative thermal index of 480°F and has a UL 94 flammability rating of V-0, with very low levels of smoke generation and toxic gas emission. Additionally, this material exhibits excellent electrical properties, which remain stable over a wide range of both temperatures and frequencies. Unitrex PEEK is chemically resistant to a wide range of organic and inorganic liquids and is insoluble in all common solvents. In addition, it is unaffected by steam and hot water and has a very low moisture absorption rate. This material offers superior dimensional stability and machines easily. While unfilled Unitrex PEEK offers good wear resistance, Unitrex L has been reinforced with graphite and PTFE to provide an ideal combination of low friction and enhanced wear. For applications that require improved strength and stiffness, a 30% glass fiber filled grade is available (Unitrex Rg-30). Unfilled Unitrex PEEK stock shapes are light beige in color and are available from Nytef Plastics in a full range of heavy gauge rod, plate and tubular bar sizes. PRODUCT ATTRIBUTES 480°F relative thermal index temperature Excellent strength, rigidity and toughness, even at elevated temperatures Chemically resistant to all common solvents Low moisture absorption Superior electrical properties Exceptional dimensional stability Rated UL V-0 with low smoke and toxic gas emissions Easily machined and fabricated FDA compliant UNITREX Rg 30% Glass fiber filled grade for improved strength and stiffness UNITREX L Bearing and wear grade offers lower coefficient of friction and improved wear resistance INDUSTRIES Medical and pharmaceutical Aircraft and aerospace Fluid handling Electrical and electronics manufacturing Automotive and transportation Petroleum industry APPLICATIONS Medical instruments Analytical instrumentation Semiconductor wafer handling components Compressor components and seals Pump wear rings Bearings and bushings&&

About

Unitrex PEEK is a semi-crystalline high temperature thermoplastic that offers design engineers a truly unique combination of exceptional performance characteristics. When compared with other engineering polymers, this material ranks as the best or nearly the best in every performance category. Unitrex PEEK has a relative thermal index of 480°F and has a UL 94 flammability rating of V-0, with very low levels of smoke generation and toxic gas emission. Additionally, this material exhibits excellent electrical properties, which remain stable over a wide range of both temperatures and frequencies. Unitrex PEEK is chemically resistant to a wide range of organic and inorganic liquids and is insoluble in all common solvents. In addition, it is unaffected by steam and hot water and has a very low moisture absorption rate. This material offers superior dimensional stability and machines easily. While unfilled Unitrex PEEK offers good wear resistance, Unitrex L has been reinforced with graphite and PTFE to provide an ideal combination of low friction and enhanced wear. For applications that require improved strength and stiffness, a 30% glass fiber filled grade is available (Unitrex Rg-30). Unfilled Unitrex PEEK stock shapes are light beige in color and are available from Nytef Plastics in a full range of heavy gauge rod, plate and tubular bar sizes. PRODUCT ATTRIBUTES 480°F relative thermal index temperature Excellent strength, rigidity and toughness, even at elevated temperatures Chemically resistant to all common solvents Low moisture absorption Superior electrical properties Exceptional dimensional stability Rated UL V-0 with low smoke and toxic gas emissions Easily machined and fabricated FDA compliant UNITREX Rg 30% Glass fiber filled grade for improved strength and stiffness UNITREX L Bearing and wear grade offers lower coefficient of friction and improved wear resistance INDUSTRIES Medical and pharmaceutical Aircraft and aerospace Fluid handling Electrical and electronics manufacturing Automotive and transportation Petroleum industry APPLICATIONS Medical instruments Analytical instrumentation Semiconductor wafer handling components Compressor components and seals Pump wear rings Bearings and bushings&&

Product Description
Generic	PEEK
Material Status	Commercial: Active
Features	Good Rigidity,Good flexibility,Low smoke,Good Dimensional Stability,Good Electrical Properties,Machinable,Low toxicity,Food contact compliance,Hypocrystalline,Solvent resistance,Low moisture absorption,V-0
Availabilitys	North America,Europe

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	1.32	g/cm³	ASTM D792
Water absorption rate			ASTM D570
24hr	0.20	%	ASTM D570
saturated	0.50	%	ASTM D570

IMPACT	Nominal value	Unit	Test method
Impact strength of cantilever beam notch	64	J/m	ASTM D256

THERMAL	Nominal value	Unit	Test method
Hot deformation temperature
1.8 MPa, unannealed	160	℃	ASTM D648
Melting peak temperature	340	℃	ASTM D3418
Linear coefficient of thermal expansion
MD	4.7E-5	1/℃	ASTM D696
Relative temperature index	249	℃	UL 746
Electrical performance	249	℃	UL 746
Impact mechanical performance	249	℃	UL 746

Electrical performance	Nominal value	Unit	Test method
Volume resistivity	> 1.0E+16	ohms·cm	ASTM D257
Dielectric strength	19	kV/mm	ASTM D149
Dielectric constant			ASTM D150
60 Hz	3.50		ASTM D150
1 MHz	3.20		ASTM D150
Dissipation factor
60 Hz	3.0E-3		ASTM D150

FLAME CHARACTERISTICS	Nominal value	Unit	Test method
Flame retardant level
3.20 mm	V-0		UL 94

MECHANICAL	Nominal value	Unit	Test method
Rockwell hardness			ASTM D785
M-level	99		ASTM D785
R-level	126		ASTM D785
Tensile modulus	4270	MPa	ASTM D638
tensile strength
yield	96.5	MPa	ASTM D638
Tensile strain
fracture	60	%	ASTM D638
Bending modulus	4140	MPa	ASTM D790
bending strength	172	MPa	ASTM D790
compressive strength	118	MPa	ASTM D695
friction coefficient	0.58		Internal Method

Notes
1. Typical properties: these are not to be construed as specifications.
2. Method A (Short-Time)
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