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BRANDS
Delrin®
Sustarin®
TECAFORM™
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Overview
ACETAL is a high strength, low friction engineering plastic that has excellent wear properties in both wet and dry environments.
Good dimensional stability and ease of machining make acetal an outstanding choice for applications requiring complex machining to tight tolerances.
Homopolymer and Copolymer Acetal
Homopolymer acetal (Delrin®) has superior room temperature strength, stiffness, and toughness.
Copolymer acetal has superior performance in continuous high heat and hot water environments. Copolymer acetal also tends to have less porosity than homopolymer acetal.
Glass Filled and Enhanced Grade Acetal
Acetal is available in glass-filled grades that offer enhanced strength and stiffness.
Acetal is also available in a number of enhanced bearing and wear grades including Delrin® AF, Delrin® AF blend, and TECAFORM™ HPV 13.
Acetal Standard Sizes
| SHEET |
24"x48" (0.25"-6.0" thick)
48"x96" (0.125"-2.0" thick)
48"x120" (0.125"-2.0" thick)
|
| ROD |
diameter 0.25"-12.0"
|
| TUBE |
OD 1.0"-4.0"
|
- Length, width, and thickness tolerances may vary by manufacturer
- Certain grades available in various colors.
- Minimums may apply to certain materials
Acetal Grades and Colors
- Grades include:
- Homopolymer acetal
- Copolymer acetal
- FDA compliant
- Enhanced bearing and wear
- Glass-filled
- Colors include:
- Natural (white)
- Black
- Colors
NOTE: Several grades of acetal are available. For additional information on acetal plastic materials, contact your local Curbell Plastics representative or call Curbell at 1-888-287-2355.
|
Click to view
BRANDS
Delrin®
Sustarin®
TECAFORM™
DOWNLOAD
Also, visit our technical resources section
|
Performance Characteristics
- Strong and stiff
- Excellent machinability
- Good dimensional stability
- Low moisture absorption
- Excellent wear properties in both wet and dry environments
- Low friction
- Good chemical resistance
|
Typical Properties
|
UNITS |
ASTM TEST |
HOMOPOLYMER ACETAL |
COPOLYMER ACETAL |
TECAFORM™ HPV 13
PFTE-FILLED
ACETAL |
20% GLASS FIBER FILLED HOMOPOLYMER ACETAL |
| Tensile strength |
psi |
D-638 |
10,000 |
9,800 |
6,800 |
8,500 |
| Flexural modulus |
psi |
D-790 |
420,000 |
370,000 |
350,000 |
730,000 |
| Izod impact (notched) |
ft-lbs/in of notch |
D-256 |
1.5 |
1.0 |
0.7 |
0.8 |
| Heat deflection temperature @ 264 psi |
°F |
D-648 |
257 |
230 |
244 |
316 |
Maximum continuous service temperature
in air |
°F |
|
185 |
195 |
185 |
185 |
Water absorption (immersion
24 hours) |
% |
D-570 |
0.25 |
0.20 |
0.22 |
0.25 |
| Coefficient of linear thermal expansion |
in/in/°Fx10-5 |
D-696 |
6.8 |
6.1 |
5.1 |
2.0-4.5 |
| Coefficient of friction (dynamic) |
|
|
0.20 |
0.21 |
0.12 |
0.35 |
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
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| LONG TERM EFFECTS OF BOILING WATER |
| on the tensile strengths of Homopolymer Acetal and Copolymer Acetal |
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