Acetal
& Delrin
Ertacetal®
C (POM-C) natural (white) / black
Ertacetal® H (POM-H) natural
(white) / black
Ertacetal®
H-TF (POM-H + PTFE) deep brown
Acetal sheets, plates and rods are among the strongest and stiffest of all thermoplastics. Acetal and Delrin plastic materials are characterised by good fatigue
life, low moisture sensitivity, and high resistance to solvents
and chemicals. Acetal products also contain good electrical properties. Homopolymer and Copolymer grade of acetal (Ertacetal brand name) are available including an enhanced bearing grade material. Derlin is a semi crystalline engineering plastic that is beneficial to engineering applications, and is suited to CNC machining
Acetal
& Delrin Sheet & Rod Characteristics
- High
mechanical strength
- Excellent
resilience
- Good
creep resilience
- High
impact strength, even at low temperatures
- Very
good dimensional stability
- Good
sliding properties and wear resistance
- Excellent
machinability
- Physiologically
inert (most grades are suitable for food contact
Acetal
& Delrin Sheet & Rod Applications
Gear wheels with small modulus, cams, heavily loaded bearings and rollers, bearing and gears with small clearances, valve seats, snapfit assemblies, dimensionally stable precision parts, electrically insulating components.
To buy Acetal or Derlin sheets and rods, see below.
Acetal
& Delrin Sheet & Rod Availability
|
. |
Round
Rods (mm) |
Sheet
/ Plates (mm) |
Tubes
O. D. (mm) |
|
Ertacetal
C (ACETAL POM-C) |
3 - 320 |
0.5
- 120 |
20
- 50 |
|
Ertacetal
H (ACETAL POM-H) |
5
- 320 |
0.5
- 110 |
20
- 60 |
|
Ertacetal
H-TF |
1
- 150
|
1 - 20 |
20
- 60 |
| |
|
|
|
Please
note: Certain sizes are non-standard and are generally
not available from stock but manufactured to order.
For further information, please call the sales team
on 0191 258 0777.
Acetal
& Delrin Products
Ertacetal
C (POM-C) natural (white) / black
Acetal
copolymer, Ertacetal C (POM-C) is more resistant
against hydrolysis, strong alkalis and thermal-oxidative
degradation than the acetal homopolymer Ertacetal H
(POM-H).
Ertacetal
H (POM-H) natural (white) / black
Acetal homopolymer, Ertacetal
H (POM-H) has higher mechanical strength, stiffness,
hardness and creep resistance as well as a lower thermal
expansion rate when compared to Ertacetal C (POM-C)
and often it also presents a better wear resistance.
Ertacetal
H-TF (POM-H + PTFE) (deep brown)
Delrin
AF Blend (Ertacetal H-TF) is a combination of Teflon
fibres evenly dispersed in a Delrin acetal resin. Much
of the strength that is inherent in Ertacetal H is retained.
Some properties change due to the addition of Teflon
fibre which is softer, less stiff and slipperier than
virgin acetal resin.
Compared
with Ertacetal C and H, this material offers superior
sliding properties. Bearings made of Ertacetal H-TF
show low friction, long wear and are essentially free
of stick-slip behaviour.
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Acetal
& Delrin Proven Applications
 Bearings and Bushings
Acetal bearings offers excellent stability and good wear resistance in a variety of moist environments.
Electrical Components
Porosity-free Acetron® GP acetal is intricately fabricated into this electrical test part with dozens of tight tolerance machined holes required at its centerline. (Prior material: Standard Acetal)
Structural Keels 
Delrin* acetal delivers outstanding fatigue and impact resistance in this continuously loaded structural keel for a prosthetic device. (Prior materials: Nylon, Elastomer)
Gears
Acetron® GP maintains tight tolerances despite environmental and clean in place chemical exposure on dairy equipment. (Prior materials: Bronze, Stainless Steel)
Rollers
Guide rollers machined from Acetron® GP rod operate smoothly and reliably in lift gate systems used to load cargo onto truck beds. (Prior materials: Cast Iron, Cast Aluminium)
Technical Engineering Notes
In general, acetal's do not perform as well in abrasive wear applications as nylons. Compensation for moisture related growth generally allows Nylatron® nylons to be used for wet, abrasive applications. If your application requires dimensional consistency in an abrasive, high humidity or submerged environment, Ertalyte® PET-P will often offer improved performance. When it comes to outdoor applications, Ertacetal is not recommended because of its poor UV-resistance.
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Downloads
| Ertacetal
C (Acetal POM-C) |
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| Ertacetal
H (Acetal POM-H) |
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| Ertacetal
H-TF |
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|
ERTACETAL®
is a registered trademark of Quadrant |
