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DOCACETAL ESD
POM C, antistatic
Details »
Choice of sizes »
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DOCACETAL ESD
POM C, antistatic
Details »
Choice of sizes »

Product features

DOCACETAL ESD is a conductive material associated with the basic POM C matrix structure, which results in a product that conducts electrical charges. Compared to native POM C, the surface and volume resistivity of the product is three to four orders of magnitude lower.

Natural

product family features

Polyoxymethylene, or POM, was first marketed in the USA under the brand name Delrin. While overseas it is mainly the homopolymer version (POM-H, POM H) that has become popular, in Europe it is the copolymer version (POM-C, POM C) that is more popular. In addition to its versatility, its ease of processing has made it popular, and over the past decade it has caught up with polyamide as one of the most widely used engineering plastics in our region. It is also known as polyacetal and sometimes even acetal for short. It is available in a wide range of sizes in sheet, rod and tube formats. Its basic colours are white, black and blue. It is also available in ELS (electrically conductive) and ESD (antistatic).

DOCACETAL ESD

Some important features

  • High strength (70-80 MPa yield strength and tensile strength)
  • Tough material, does not break (grooved Charpy: 8 kJ/m2)
  • Characterised by good fatigue strength and damping capacity
  • Relatively good slip properties (dry slip on smoothed and ground steel: m = 0.25-0.45), which can be enhanced by additives such as polyethylene and Teflon (Docacetal C + PE and Docacetal H TF)
  • Wide application temperature range: -50°C/+140°C (for short term use)
  • Does not swell when exposed to humidity (unlike polyamides), POM C version can be used in underwater mode up to 80°C
  • Can also be machined very well on automatic machines

Main areas of application

Dimensionally stable, precision parts; small gears, valve seats, springs, sliding elements, cam cams, insulating elements in the electrical industry, machine parts in permanent contact with water (up to 80°C for POM C), rollers, fasteners, etc.

Machining technology

  • Chipping (turning, milling, drilling, reaming, sawing): the most machinable plastics. Traditional metalworking tools, in some cases woodworking tools - carbon steel, high-speed steel, carbide, diamond - can be used with a sharp finish.
  • Cooling is recommended to allow high cutting speeds, e.g. v = 200-500 m/min for turning, v = 200-400 m/min for milling, v = 50-100 m/min for drilling.
  • Gluing and welding: feasible but not recommended.

Available formats

  • ESD POM rod
  • ESD POM sheet

Technical data

Downloadable technical data sheet »
Investigation
Unit of measurement
Value
Base properties
Basic colour
-
-
natural
Density
DIN EN ISO 1183
g/cm^3
1.35
Water absorption: saturation in air, 24 h / 96 h, (23ºC)
DIN EN ISO 62
%
0.9/ 1.8
Flammability rating according to UL94
DIN IEC 60695-11-10
-
HB
Mechanical properties
Tensile strength
DIN EN ISO 527-2
MPa
39
River crossing
DIN EN ISO 527-2
MPa
39
Tensile modulus of elasticity
DIN EN ISO 527-2
MPa
1300
Elongation at break
DIN EN ISO 527-2
%
23
Compressive strength
EN ISO 604 1% / 2%
MPa
Flexural strength
DIN EN ISO 178
MPa
46
Charpy impact strength
DIN EN ISO 179-1eU
kJ/m2
not broken
Charpy impact strength, notched
DIN EN ISO 179-1eA
kJ/m2
9
Ball indentation hardness
ISO 2039-1
MPa
74
Shore D hardness
DIN EN ISO 868
-
73
Compressive strength
23°C, 2N/mm2, 1h
%
Compressive strength
80°C, 10N/mm2, 56h
%
Thermal properties
Melting point
ISO 11357-3
ºC
165
Glass transition temperature
DIN 53765
ºC
-60
Thermal conductivity factor
ISO 22007-4:2008
W/ (K.m)
0.3
Forest heat
ISO 22007-4:2008
J/(g.K)
1.6
Coefficient of linear thermal expansion (CLTE): between 23 - 100ºC
DIN EN ISO 11359-1;2
m/(m.K)x10-5
17
Applicable max. temperature in air - short time
-
ºC
140
Applicable max. temperature in air - for prolonged use
-
ºC
100
Minimum temperature of applicability
-
ºC
-50
Thermal stability (HDT)
DIN EN ISO 75, A
ºC
106
Chemical resistance
Chemical resistance at 23ºC: - weak acid
-
-
B
Chemical resistance at 23ºC: - strong acid
-
-
C
Chemical resistance at 23ºC: - weak alkali
ISO 11357-3
ºC
A
Chemical resistance at 23ºC: - strong alkali
-
-
A
Chemical resistance at 23ºC: - aromatic hydrocarbons
-
-
A
Chemical resistance at 23ºC: - alpha hydrocarbons
-
-
A
Chemical resistance at 23ºC: - chlorinated solvents
-
-
B
Chemical resistance at 23ºC: - alcohols
-
-
A
Electrical properties
Dielectric constant
IEC 60250
-
Dielectric loss factor (50 Hz)
IEC60 250
-
Volume resistance
IEC60093
Ω*cm
109
Surface resistance
IEC60093
Ω
109 - 1011
Creep current strength, CTI
IEC 60112
-
Dielectric strength
IEC 60243
kV/mm
Optical properties
No value to display.
Sterilizability
No value to display.
Wear properties
No value to display.

(*) legend:

A - applicable
B - limited application
C - not applicable

Tables
Thickness
Colour
Table size (mm x mm)
Thickness tolerances: +0.0; +1.5
Mass: 11,23 kg/m
Table size: 620 x 3000 mm
Thickness tolerances: +0.0; +0.9
Mass: 11,91 kg/m
Table size: 610 x 1220 mm
Thickness tolerances: +0.0; +1.5
Mass: 18,14 kg/m
Table size: 620 x 3000 mm
Thickness tolerances: +0.0; +1.5
Mass: 23,30 kg/m
Table size: 610 x 1220 mm
Thickness tolerances: +0.0; +1.5
Mass: 34,02 kg/m
Table size: 610 x 1220 mm
Thickness tolerances: +0.0; +2.5
Mass: 39,12 kg/m
Table size: 610 x 1220 mm
Thickness tolerances: +0.0; +2.5
Mass: 44,23 kg/m
Table size: 610 x 1220 mm
Please contact us for the current availability of each size.
Rods
Diameter (mm)
Colour
Diameter tolerances: +0.1; +0.6
Mass: 0,03 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.1; +0.6
Mass: 0,07 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.2; +0.8
Mass: 0,13 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.2; +0.8
Mass: 0,21 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.2; +0.8
Mass: 0,30 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.2; +1.0
Mass: 0,53 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.2; +1.0
Mass: 0,83 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.2; +1.2
Mass: 1,20 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.3; +1.3
Mass: 1,63 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.3; +1.6
Mass: 2,13 kg/m
Standard length: 3048 mm
Diameter tolerances: +0.4; +2.0
Mass: 4,79 kg/m
Standard length: 3048 mm
Please contact us for the current availability of each size.
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