Ertacetal® H-TF POM-H

Ertacetal H-TF (POM-H + PTFE) is a Delrin® AF Blend, a combination of PTFE fibers evenly dispersed in a Delrin acetal resin. This material offers superior sliding properties, making it ideal for bearings, gears, and other low-friction applications. Compared to Ertacetal C and H, Ertacetal H-TF offers improved performance and longer wear life.Features:Low friction, long wearingHigh strength and toughnessHigh dimensional stability and machinabilityPTFE fibers evenly dispersed in a Delrin acetal resinBenefits:Reduced stick-slip behavior in bearings and other low-friction applicationsIncreased wear resistance and longer lifespanImproved performance in harsh environmentsFood-contact compliant for use in the food processing and packaging industryApplications:BearingsGearsPulleysConveyor wear partsAny other low-friction application requiring high strength and dimensional stability.

Properties

Physical Form: Plates

Product families

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts

Other characteristics

Brand: Ertacetal® POM-C, POM-H
Density: 1,500.0 kg/m³
Features: Excellent Stiffness, Good Machinability, Good Sliding Properties, High Strength, Improved Wear, Low Coefficient of Friction, Low Friction, Low Moisture Absorption, Lubricated, Slip, Soft, Wear Resistant
Polymer Name: Polyacetal Homopolymer (POM)
Tensile Modulus: 3,100.0 MPa
Markets: Industrial
Technology: Plastics
Product Families: Plastics — Parts, Shapes & Films
Overview: High mechanical strength, stiffness and hardness; Excellent resilience; Good creep resistance; High impact strength, even at low temperatures; Very good dimensional stability (low water absorption); Good sliding properties and wear resistance; Excellent machinability; Good electrical insulating and dielectric properties; Physiologically inert (most grades are suitable for food contact); Not self-extinguishing
Additives Included: Lubricant (PTFE)
Material Features: Excellent Stiffness
Good Machinability
Good Sliding Properties
High Strength
Improved Wear
Low Coefficient of Friction
Low Friction
Low Moisture Absorption
HIGHLIGHTS: Ertacetal H-TF (POM-H + PTFE) is a Delrin® AF Blend, a combination of PTFE fibers evenly dispersed in a Delrin acetal resin. Much of the strength that is inherent in Ertacetal H is retained. Some properties change due to the addition of PTFE fiber which is softer, less stiff and more slippery than virgin acetal resin. Compared to Ertacetal C and H, this material offers superior sliding properties. Bearings made of Ertacetal H-TF show low friction, long wear and are essentially free of stick-slip behavior.
Plastics and Elastomers End Uses: Bearings
Bushings
Electrical Parts
Rollers

Technical data

Table 1 of 4

11 rows

Characteristic	Value	Unit	Method
Tensile Strength	55	MPa	ISO 527-1/-2 ⁷
Tensile Strain at Break (Elongation)	10	%	ISO 527-1/-2 ⁷
Tensile Modulus of Elasticity	3100	MPa	ISO 527-1/-2 ⁹
Shear Strength	52	MPa	ASTM D732
Compressive Stress (at 1% nominal strain)	26	MPa	ISO 604 ¹⁰
Compressive Stress (at 2% nominal strain)	44	MPa	ISO 604 ¹⁰
Compressive Stress (at 5% nominal strain)	77	MPa	ISO 604 ¹⁰
Charpy Impact Strength (Unnotched)	30	kJ/m²	ISO 179-1/1eU
Charpy Impact Strength (Notched)	3	kJ/m²	ISO 179-1/1eA
Hardness ¹⁴	84	—	ISO 2039-2, Rockwell M
Hardness ¹⁴	79	Shore D	ISO 868

Table 2 of 4

7 rows

Characteristic	Value	Unit	Method
Melting Temperature (DSC, 10°C / min)	180	°C	ISO 11357-1/-3
Coefficient of Linear Thermal Expansion (23 to 100°C)	105	μm/(m.K)	—
Coefficient of Linear Thermal Expansion (23 to 60°C)	120	μm/(m.K)	—
Heat Deflection Temperature	100	°C	ISO 75-1/-2 (Method A: 1.8 MPa (264 PSI))
Continuous Allowable Service Temperature in Air (20.0 hrs) ³	90	°C	—
Minimum Service Temperature ⁴	-20	°C	—
Flammability (Oxygen Index)	15	%	ISO 4589-1/-2

Table 3 of 4

3 rows

Characteristic	Value	Unit	Method
Electric Strength	20	kV/mm	IEC 60243-1 ¹⁵
Volume Resistivity	10E13	Ohm.cm	IEC 62631-3-1
Surface Resistivity	10E12	Ohm/sq.	ANSI/ESD STM 11.11

Table 4 of 4