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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 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:


Delrin®

SUSTARIN®

TECAFORM®


TECHNICAL RESOURCES


Acetal-Data-Sheet.pdf


STANDARD SIZES

SHEET

Dimensions:

6 in x 12 in – 48 in x 120 in

COLOR

Sheet and Rod:

Black, Blue, Green, Natural, Brown

Medical Grade Rod:

Dark Blue, Dark Green, Gray

Tube:

Natural

ROADDiameter:

0.187 in – 12 in

TUBE

Outside Diameter:

25 mm – 230 mm

GRADESStatic Dissipative, Glass-Filled, Enhanced Bearing and Wear, FDA Compliant, Medical

Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes and colors available upon request.



ACETAL MATERIAL OPTIONS


Homopolymer vs Copolymer– Acetal is available in both homopolymer (Delrin® 150) and copolymer.


   • Homopolymer acetal (Delrin®) has superior room temperature strength, stiffness, and toughness.

   • Copolymer acetal has excellent performance in continuous high heat and hot water environments. 

      Copolymer acetal also tends to have less porosity than homopolymer acetal. 


FDA Compliant Material– Acetal is available in FDA compliant grades.


Acetal Grades– Acetal is available in a number of grades, including enhanced bearing and wear Delrin® AF, Delrin® 100AF blend, Delrin® AF DE588, and TECAFORM® HPV13. Delrin® 511P is a homopolymer acetal that offers enhanced crystallization characteristics. This higher level of crystallization helps to augment aspects of the physical properties such as fatigue strength, stiffness, and creep resistance.

Ask about special formulations that offer medical, metal detectable, x-ray detectable, or static dissipative grades.


Chemical Attack– Acetal is chemically resistant to many fuels and solvents.


Wear Resistance– Acetal offers good wear and abrasion properties.



TYPICAL PROPERTIES OF ACETAL


UNITS

ASTM

 TEST

HOMOPOLYMER

        ACETAL

COPOLYMER

     ACETAL

TECAFORM®

HPV13 

PTFE-FILLED

ACETAL

   20% GLASS

  FIBER FILLED

HOMOPOLYMER

   ACETAL

Tensile strengthpsiD63810,0009,8006,8008,500
Flexural moduluspsiD790420,000370,000350,000730,000
Izod impact (notched)

ft-lbs/in

of notch

D2561.51.00.70.8

Heat deflection

temperature

@ 264 psi

°FD648257230244316

Maximum continuous

service temperature

in air

°F
185195185185

Water absorption

(immersion

24 hours)

D5700.250.200.220.25

Coefficient of

linear thermal

expansion

in/in/
°Fx10-5
D6966.86.15.12.0 - 4.5

Coefficient of

friction (dynamic)



0.200.210.120.35

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.


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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