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Delrin® | Application Guide
Delrin Acetal Resin
E-grades for Low VOC
Automotive Applications
®
Delrin® | Application Guide
Delrin® acetal resin, the world’s first acetal polymer, is a highly versatile engineering polymer that offers an
excellent balance of desirable properties as well as bridges the gap between metals and ordinary plastics.
Acetal polymers are commonly referred to as polyoxymethylene or POM and parts are commonly identified
with the part marking code >POM< for recycling purposes. All POM Delrin® E-grades for low emissions meet
the automotive industry’s demanding requirements for the use of plastics in vehicle interiors. This extends
the scope of application for Delrin® acetal resins in vehicles to include plastic components in interiors where
high resistance to impact load is required.
Product line
Delrin® E-grades for low emissions are available in several basic melt flow series: 100, 300, and 500. These
differ primarily in melt viscosity with 100 being the most viscous and 500 being the most fluid.
A wide range of Delrin® acetal resin E-grades are available to meet specific customer needs for demanding
applications:
•
Unreinforced resins (CPE-grades)
•
Toughened and super tough resins (TE-grades)
•
UV-stabilized grades (UVE-grades)
•
Low wear low friction resins (ALE-grades)
Bearing plate of safety belt
retractor from Autoliv made of
Delrin® 300TE
Spring element made of low emission Delrin for steering
column
Delrin® | Application Guide
As is typical for all Delrin® acetal resins, the new low emission grades combine high impact resistance—even
at low temperatures—with high stiffness, strength and elongation. They provide high surface hardness, very
low wear and friction, resiliency and a high resistance to chemicals and solvents.
Testing by SGS Institut Fresenius GmbH in Germany, in accordance with the VDA 275 standard, confirms that
all Delrin® E-grades meet the demanding emission requirements of the world’s major automotive manufacturers. The SGS testing revealed emissions of below 2 mg/kg for all grades, while internal testing showed their
strength, stiffness and impact resistance to be similar or better than the standard grades.
Applications
Delrin® E-grades for low emissions are suitable for:
•
fasteners
•
gears
•
seatbelt components
•
switches
•
headrest adjusters
•
buckles
•
levers
•
latches
•
brackets
•
components with snap-in joints
Delrin® e-grades for low emissions
Unreinforced family
Delrin® CPE grades for low emissions are unreinforced grades. They are very suitable for applications within
the vehicle’s interior because they offer less than 2 mg/kg emission of volatile particles per VDA 275, meeting
the requirements of the global automotive industry and performing as well as standard Delrin® products.
Delrin® 100CPE
• high viscosity
•
highest impact performance
•
low mold deposit for high productivity
Delrin® 111CPE
• high viscosity
•
high stiffness and impact performance
•
crystallization technology
Delrin® 300CPE
• medium-high viscosity
•
greater design flexibility and freedom
•
high mechanical properties with ease of process in mind
•
enables wall thicknesses reduction with good resin flow in complex parts
•
improved weld line strength
Delrin® 511CPE
• medium viscosity
•
crystallization technology
•
high stiffness with ease of processing
Delrin® 500CPE
• medium viscosity
•
enhanced version of Delrin® 500P with very low emissions
•
improved processing thermal stability
•
good balance of melt flow vs. mechanical properties
Delrin® | Application Guide
A more sustainable option
Delrin® Renewable Attributed base polymer is produced using 100% bio-feedstock from waste according to
ISCC (International Sustainability and Carbon Certification) mass balance certification. It is manufactured
with 100% certified renewable electricity and has the potential to be 100% recycled.
This new material shows the same quality, identical performance, reliability, and sensory experience as
Delrin, which enables easy adoption at very low risk. It’s 50% lighter than aluminum and six times lighter than
steel, making it ideal for many applications.
A number of the Delrin CPE grades are available as Renewable Attributed with the same performance and
benefits as the standard grades:
•
Delrin® RA100CPE
•
Delrin® RA300CPE
•
Delrin® RA500CPE
•
Delrin® RA511CPE
Specialty family (UV stabilized and low wear, low friction grades)
Delrin® UVE grades for low emissions are UV stabilized acetal resins and are available in 3 different
viscosities:
•
Delrin® 127UVE–high viscosity
•
Delrin® 327UVE–medium-high viscosity
•
Delrin® 527UVE–medium viscosity
Delrin® 100ALE
A high viscosity acetal containing advanced system of lubrication. It provides:
•
good yield and impact strength
•
low wear and friction against itself and steel
•
low noise/squeak
Delrin® 500ALE
A medium viscosity acetal containing advanced system of lubrication. It provides:
•
good balance of melt flow vs. mechanical properties
•
low wear and friction against itself and steel
•
low noise/squeak
Delrin® | Application Guide
As Delrin® CPE grades, UVE and ALE grades offer less than 2 ppm emission of volatile particles according
to VDA 275.
Property
Test
Method
Units
Delrin®
Delrin®
Delrin®
Delrin®
100CPE
300CPE
500CPE
511CPE
RA100CPE RA300CPE RA500CPE RA511CPE
Delrin®
127UVE
Delrin®
327UVE
Delrin®
527UVE
Delrin®
100ALE
Yield stress
ISO 527
MPa
Yield strain
SO 527
%
Nominal
strain at
break
ISO 527
%
Tensile
modulus
ISO 527
MPa
Charpy
notched
impact
strength,
-30°C
ISO
179/1eA
kJ/m2
6.5
7.5
Charpy
notched
impact
strength,
23°C
ISO
179/1eA
kJ/m2
10.5
10.5
Charpy
unnotched
impact
strength,
23°C
ISO
179/1eU
kJ/m2
No break
No break
No break
Deflection
temperature,
1.8 MPa
ISO
75-1/-2
°C
Melt flow
rate, 2.16
kg/190°C
ISO
g/10min
2.3
2.5
2.5
Density
ISO 1183
kg/m3
VOC
emissions
VDA 275
mg/kg
<2
<2
<2
<2
<2
<2
<2
<2
Property data is for natural color.
Delrin® | Application Guide
Toughened family
Delrin® TE grades for low emissions are toughened grades offering less than 2 mg/kg emission of volatile
particles. They are available in three viscosities and different levels of toughener, while keeping the same
performance as standard toughened Delrin® grades. All Delrin TE grades also deliver on excellent low noise
properties in addition to the following characteristics:
Delrin® 100TE
•
toughened, high viscosity resin
•
improved impact resistance and good moldability
•
good friction partner in gear applications
•
designed for highly stressed parts where outstanding toughness is required
Delrin® 300TE
•
toughened, medium-high viscosity
•
very good balance of melt flow and impact properties
Delrin® 100STE
•
super tough, high viscosity
•
superior impact resistance
•
best combination of stiffness and impact resistance at very low temperature
•
use in easy-to-fill molds
Delrin® 100MTE
•
medium toughened, high viscosity
•
excellent impact resistance
•
best combination of stiffness and impact
Property
Test Method
Units
Delrin®
100STE
Delrin®
100MTE
Delrin®
100TE
Delrin®
300TE
Yield stress
ISO 527
MPa
Yield strain
ISO 527
%
Nominal strain at break
ISO 527
%
>50
>50
>50
Tensile modulus
ISO 527
MPa
Charpy notched impact strength,
-30°C
ISO 179/1eA
kJ/m2
Charpy notched impact strength, 23°C
ISO 179/1eA
kJ/m2
Unnotched charpy impact strength,
23°C
ISO 179/1eU
kJ/m2
No break
No break
No break
No break
Deflection temperature, 1.8 MPa
ISO 75-1/-2
°C
Melt flow rate, 2.16 kg/190°C
ISO 1133
g/10min
2.3
2.3
2.2
Density
ISO 1183
kg/m3
VOC emissions
VDA 275
mg/kg
<2
<2
<2
<2
Property data is for natural color.
To learn more, contact your Delrin representative or visit Delrin.com.
Delrin® | Application Guide
The information and recommendations contained herein are offered as a service to our customers but are not intended to relieve the user from its responsibility to investigate and
understand other pertinent sources of information and to comply with all laws and procedures applicable to the safe handling and use of these materials. The information and
recommendations provided herein were believed by Delrin to be accurate at the time of preparation or obtained from sources believed to be generally reliable. However, Delrin
makes no warranty concerning their accuracy and Delrin will not be liable for claims resulting from any party’s use of or reliance on information or recommendations contained
herein regardless of whether it is claimed that the information or recommendations are inaccurate, incomplete or otherwise misleading. Caution: For medical applications, discuss
with a Delrin customer representative and consult the Delrin® Medical Caution Statement.
Delrin is an industry-leading premium industrial polymer business. Grounded in strong innovation, Delrin is a category creator with a longstanding reputation for quality,
reliability, supply and product performance. The iconic Delrin brand, coupled with proprietary technology and deep application expertise make us a leader in the high-end
engineering polymer market. Delrin has exciting growth prospects from exposure to automation, actuation, healthcare, mobility and consumer applications.
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