Light-grey Ertalyte TX (food-grade) is a self-lubricating Ertalyte TX PET-P polyester material featuring an internally integrated solid lubricant. Compliant with FDA and EU standards for food-contact materials, it is used to manufacture components subject

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Light-grey Ertalyte TX (food-grade)

Light-grey Ertalyte TX (food-grade) is a self-lubricating Ertalyte TX PET-P polyester material featuring an internally integrated solid lubricant. Compliant with FDA and EU standards for food-contact materials, it is used to manufacture components subjected to high pressure and high speeds—such as bearings and bushings—without the need for external lubrication.

This FDA-compliant PET material offers superior durability compared to nylon, acetal, and other polyester materials.

Ertalyte TX PET is a thermoplastic polyester with an internal lubricant, providing superior wear resistance and higher chemical inertness than standard nylon (PA) and acetal (POM) products. Thanks to its uniformly distributed solid lubricant, Ertalyte TX PET exhibits lower wear rates and coefficients of friction than unmodified polyesters (such as PET or PBT) and even other internally lubricated materials like Delrin AF Blend. Ertalyte TX PET performs well under both high-pressure and high-speed conditions. It is also particularly well-suited for applications involving soft metal-to-plastic contact surfaces.

Ertalyte TX PET is an excellent choice for dosing systems, where food safety compliance, chemical resistance, and low wear are critical factors. Replacing metal parts with this thermoplastic polyester also helps reduce maintenance costs and eliminates the need for lubrication.

Key applications of Ertalyte TX: food processing equipment, food packaging machinery, self-lubricating bearings and bushings, wear pads and guide rails, rollers, and cam followers.

Key benefits of Ertalyte TX:

Integrated solid lubricant reduces friction

Safe for direct food contact (FDA/EU compliant)

Withstands high pressure and high operating speeds

Safe for contact surfaces made of soft metals and plastics

Low moisture absorption ensures dimensional stability.

	Test methods	Units	Indicative values
Thermal Properties (1)	Melting temperature (DSC, 10°C (50°F) / min)	ISO 11357-1/-3	°C	245
	Glass transition temperature (DMA, tan delta)	DMA	°C	-
	Thermal conductivity at 23°C (73°F)	-	W/(K.m)	0.29
	Coefficient of linear thermal expansion (-40 to 150 °C) (-40 to 300°F)
	Coefficient of linear thermal expansion (23 to 60°C) (73°F to 140°F)	-	µm/(m.K)	65
	Coefficient of linear thermal expansion (23 to 100°C) (73°F to 210°F)	-	µm/(m.K)	85
	Heat Deflection Temperature: method A: 1.8 MPa (264 PSI)	ISO 75-1/-2	°C	75
	Continuous allowable service temperature in air (20.000 hrs) (3)	-	°C	100
	Min. service temperature (4)	-	°C	-20
	Flammability: UL 94 (3 mm (1/8 in.)) (5)	-	-	HB
	Flammability: Oxygen Index	ISO 4589-1/-2	%	25
Mechanical Properties (6)	Tensile strength	ISO 527-1/-2 (7)	MPa	76
	Tensile strain (elongation) at yield	ISO 527-1/-2 (7)	%	4
	Tensile strain (elongation) at break	ISO 527-1/-2 (7)	%	5
	Tensile modulus of elasticity	ISO 527-1/-2 (9)	MPa	3,300
	Shear Strength	ASTM D732	MPa	59
	Compressive stress at 1 / 2 / 5 % nominal strain	ISO 604 (10)	MPa	31 / 60 / 102
	Compressive strength
	Charpy impact strength - unnotched	ISO 179-1/1eU	kJ/m²	30
	Charpy impact strength - notched	ISO 179-1/1eA	kJ/m²	2.5
	Izod Impact notched
	Flexural strength	ISO 178 (12)	MPa	122
	Flexural modulus of elasticity	ISO 178 (12)	MPa	3,160
	Rockwell M hardness (14)	ISO 2039-2	-	94
	Shore hardness D (14)	ISO 868	-	78
Electrical Properties	Electric strength	IEC 60243-1 (15)	kV/mm	21
	Volume resistivity	IEC 62631-3-1	Ohm.cm	1.00E+14
	Surface resistivity	ANSI/ESD STM 11.11	Ohm/sq.	1.00E+13
	Dielectric constant at 1 MHz	IEC 62631-2-1	-	3.2
	Dissipation factor at 1 MHz	IEC 62631-2-1	-	0.014
Miscellaneous	Colour	-	-	Blueish Gray
	Density	ISO 1183-1	g/cm³	1.44
	Specific Gravity
	Water absorption after 24h immersion in water of 23°C (73°F)	ISO 62 (16)	%	0.06
	Water absorption at saturation in water of 23 °C (73°F)	-	%	0.47
	Wear rate	ISO 7148-2 (18)	µm/km	2
	Dynamic Coefficient of Friction (-)	ISO 7148-2 (18)	-	0.15-0.22
	Limiting PV at 100 FPM
	Limiting PV at 0.1 / 1 m/s cylindrical sleeve bearings	-	Mpa.m/s	0.26 / 0.16
	Chemical Resistance