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ACETAL IS WIDELY USED FOR:

  • Bearings and bushings
  • Pump and valve parts
  • Manifolds
  • Gears
  • Jigs and fixtures
  • Food processing and other
           packaging machinery parts
  • Wear pads
  • Electrical components

PERFORMANCE CHARACTERISTICS:

  • Strong and stiff
  • Excellent machinability
  • Low moisture absorption
  • Excellent wear properties in both
           wet and dry environments
  • Low friction
  • Good chemical resistance

COMMON BRANDS:

  • POM (Made in China)
  • Delrin®
  • SUSTARIN®
  • TECAFORM®

TECHNICAL RESOURCES

  Acetal Data Sheet
​  Chemical Resistance Chart
​  Machine Builders Illustrated Brochure
​  Machine Builders Pack & Convey Line Card
​  Medical Grade & High Performance Plastics
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Acetal

High strength, stiff, low friction engineering plastic with good wear properties

Acetal (polyoxymethylene) is a high strength, low friction engineering plastic that has excellent wear properties in both wet and dry environments. Easy to machine, acetal makes an outstanding choice for applications that require complex, tight tolerances.

ACETAL MATERIAL OPTIONS

ESD– Static Dissipative Acetal   Volume resistivity: ≤ 1010 Ω x cm     Surface resistivity: ≤ 1012 Ω.
ELS–  CARBON BLACK FILLER​  Volume resistivity: ≤ 101 Ω x cm        Surface resistivity: ≤ 104 Ω.

DTM semi-finished products with the additional titles ELS respectively ESD possess a reduced surface resistivity. This property will be applied wherever static charge of plastic components needs to be avoided.
In sensitive applications such as electronics voltages of over 100 volts are already sufficient to irreparably destroy circuits. In fire-hazardous facilities sparkovers may cause fires or even explosions. The surface resistivity of unmodified plastics is over 1012 Ω.

  • ESD ≤ 1012 Ω
  • ELS ≤ 106 Ω

Are used in scopes like:

  • semiconductor industry
  • fabrication of processors
  • dye-and varnish industry
  • woodprocessing and
  • mills


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EXPLORE DUPONT™ VESPEL® SP POLYIMIDE MATERIALS
Highly-crystalline engineering thermoplastic that industry leaders specify for high load mechanical applications.
Highly crystalline resins are strong, rigid and a low coefficient of friction 
DELRIN® AF blend-13% PTFE fiber filled;improved coefficient of friction, better lubricity, and improved wear characteristics.
20% glass filled materials intended for general industrial use. high stiffness, low warpage,low creep for superior part performance under stress.
106 Ω≤ ESD ≤ 1012 Ω
This property will be applied wherever static charge of plastic components needs to be avoided.
102 Ω≤ ELS ≤ 105 Ω
No microporosity
high thermal stability
high dimension stability
high strength

TYPICAL PROPERTIES OF ACETAL

  UNITS ASTM
TEST
HOMOPOLYMER
Derlin
POM H
COPOLYMER
ACETAL
POM C
PTFE-FILLED
Derlin Af
POM GF20
Tensile strength psi D638 10,000 9,800 6,800 8,500
Flexural modulus psi D790 420,000 370,000 350,000 730,000
Izod impact (notched) ft-lbs/in
of notch
D256 1.5 1.0 0.7 0.8
Heat deflection
temperature
@ 264 psi
°F D648 257 230 244 316
Maximum continuous
service temperature
in air
°F   185 195 185 185
Water absorption
(immersion
24 hours)
% D570 0.25 0.20 0.22 0.25
Coefficient of
linear thermal
expansion
in/in/
°Fx10-5
D696 6.8 6.1 5.1 2.0 - 4.5
Coefficient of
friction (dynamic)
    0.20 0.21 0.12 0.35
If you do not satisfy our products or service, welcome to send your complains to us, please state details with text and pictures or video to info@dtmar.com 
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