Home Unfilled acetal (POM) grades Polyoxymethylene Exablend POM 1900

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Polyoxymethylene Exablend POM 1900

Description

Exablend POM 1900 is a polyacetal homopolymer (POM-H) with improved molding properties, containing a processing release agent and a built-in lubricant. It combines the highest stiffness among polyacetals, a low coefficient of friction and precise molding. Weather-resistant, it holds its shape under long-term loads. An analog of DuPont Delrin 500P and 100P in applications requiring a homopolymer (POM-H) structure with higher crystallinity.

Key properties

POM-H homopolymer — higher crystallinity and HDT compared with POM-C
The highest stiffness and Young's modulus among polyacetals
Built-in release agent and lubricant — precise molding without additional additives
Low coefficient of friction (increased PV value)
Low moisture absorption (<0.25 % in 24 h)
Weather-resistant, shape recovery under load
High fatigue strength — for dynamic parts

Applications

Precision gears and drives. Gear wheels for household appliances, automotive and medical devices — geometric accuracy and wear resistance.

Latches, clips, buttons. Quick-release connections and fastening clips — repeated deformation without loss of shape.

Automotive fuel systems. Pump housings, valves, bushings — resistance to gasoline/diesel/ATF.

Plumbing. Mixer bodies, cartridges, connections — hot water resistance.

Furniture hardware. Precision locks, hinges and hardware for sliding mechanisms.

Property

Unit

Value

Physical properties:

Supply form

—

Pellets

Pellet size

2…6

Density

g/cm³

1.42 (ISO 1183-1)

Water absorption (saturation, 23 °C)

0.5 (ISO 62)

Rheological properties:

Melt flow rate (MFR, 200 °C / 2.16 kg)

g/10 min

25 (ISO 1133-1)

Mold shrinkage (flow direction)

1.8 (ISO 294-4)

Mold shrinkage (transverse direction)

1.7 (ISO 294-4)

Mechanical properties:

Tensile stress at yield (conditioned)

MPa

70 (ISO 527-2)

Tensile stress at yield (dry)

MPa

70 (ISO 527-2)

Tensile strength (10-year aging)

MPa

50 (ISO 527-2)

Charpy impact strength (unnotched, 23 °C)

kJ/m²

>200 (ISO 179-1/1eU)

Charpy impact strength (unnotched, −40 °C)

kJ/m²

150 (ISO 179-1/1eU)

Charpy impact strength (unnotched, moisture-saturated, 23 °C)

kJ/m²

>200 (ISO 179-1/1eU)

Charpy impact strength (unnotched, 10-year aging, 23 °C)

kJ/m²

80 (ISO 179-1/1eU)

Charpy impact strength (notched, 23 °C)

kJ/m²

5 (ISO 179-1/1eA)

Charpy impact strength (notched, −40 °C)

kJ/m²

5 (ISO 179-1/1eA)

Ball indentation hardness (conditioned)

MPa

150 (ISO 2039-1)

Ball indentation hardness (dry)

MPa

150 (ISO 2039-1)

Flexural strength

MPa

90 (ISO 178)

Elongation at break

25 (ISO 527-2)

Compression modulus (dry)

GPa

2.9 (ISO 604)

Flexural modulus (dry)

GPa

2.7 (ISO 178)

Thermal properties:

Melting temperature

°C

178 (ISO 11357-3)

Heat deflection temperature (1.8 MPa)

°C

95 (ISO 75-2)

Heat deflection temperature (0.45 MPa)

°C

160 (ISO 75-2)

Coefficient of linear thermal expansion, longitudinal

µm/(m·K)

100 (ISO 11359-2)

Coefficient of linear thermal expansion, transverse

µm/(m·K)

100 (ISO 11359-2)

Flammability

class

HB (UL 94)

Oxygen index

23 (ISO 4589-2)

Electrical properties:

Dielectric strength

kV/mm

32 (IEC 60243-1)

Volume resistivity

Ω·m

10^12 (IEC 62631-3-1)

Surface resistivity

10^15 (IEC 62631-3-2)

Comparative tracking index (CTI)

600 (IEC 60112)

Typical data for this polymer class, for reference.

The stated values are measured by internal test methods close to the corresponding ISO and GOST standards. The information is for reference only; we recommend using the technical data after agreement with the supplier and signing of a normative technical specification.