Common features of Delrin® acetal resins include mechanical and physical properties such as high mechanical strength and rigidity, excellent fatigue and impact resistance, as well as resistance to moisture, gasoline, lubricants, solvents, and many other neutral chemicals. Delrin® acetal resins also have excellent dimensional stability and good electrical insulating characteristics. They are naturally resilient, self-lubricating, and available in a variety of colors and speciality grades.Delrin® acetal resin typically is used in demanding applications in the automotive, domestic appliances, sports, industrial engineering, electronics, and consumer goods industries.Delrin® 500CPE (DE20729) is a medium viscosity acetal homopolymer with very low VOC emissions for applications in automotive interiors. It provides good mechanical performances with improved processing, thermal stability and productivity for injection molding.
Polymer Name: Polyacetal Homopolymer (POM)
Processing Methods: Injection Molding
Additives Included: Mold Release Agent
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Processing Notes
Injection Molding
Drying is recommended, but not necessary for newly opened packaging stored in a dry location.
Follow the drying guidelines above in the following cases
- If moisture is above the Processing Moisture Content recommendation,
- When a resin container is damaged,
- When the material is not properly stored in a dry place at room temperature, or
Properties
Mechanical Properties
Value | Units | Test Method / Conditions | |
Nominal Strain (at Break) | 33 | % | ISO 527-1/-2 |
Flexural Modulus | 3000 | MPa | ISO 178 |
Flexural Strength | 93 | MPa | ISO 178 |
Charpy Impact Strength (at 23°C) | 250 | kJ/m² | ISO 179/1eU |
Charpy Impact Strength (at -30°C) | 340 | kJ/m² | ISO 179/1eU |
Notched Charpy Impact Strength (at 23°C) | 10 | kJ/m² | ISO 179/1eA |
Notched Charpy Impact Strength (at -30°C) | 8 | kJ/m² | ISO 179/1eA |
Yield Stress | 72 | MPa | ISO 527-1/-2 |
Poisson's Ratio | 0.37 | - | - |
Tensile Modulus | 3100 | MPa | ISO 527-1/-2 |
Yield Strain | 16 | % | ISO 527-1/-2 |
Thermal Properties
Value | Units | Test Method / Conditions | |
Melt Temperature (at 10°C/min) | 178 | °C | ISO 11357-1/-3 |
Temperature of Deflection Under Load (1.8 Mpa) | 97 | °C | ISO 75-1/-2 |
Flammability
Value | Units | Test Method / Conditions | |
Burning Behavior (at 1.5mm Nominal Thickness) | UL94 HB | class | IEC 60695-11-10 |
Burning Behavior (at 0.8mm Thickness) | UL94 HB | class | IEC 60695-11-10 |
FMVSS Class | B | - | ISO 3795 (FMVSS 302) |
Burning Rate (at 1mm Thickness) | 20 | mm/min | ISO 3795 (FMVSS 302) |
Other Properties
Value | Units | Test Method / Conditions | |
Density of Melt | 1190 | kg/m³ | - |
Density | 1420 | kg/m³ | ISO 1183 |
Processing Information (Injection Molding)
Value | Units | Test Method / Conditions | |
Melt Temperature (Optimum) | 205 | °C | - |
Melt Temperature (Minimum) | 200 | °C | - |
Melt Temperature (Maximum) | 210 | °C | - |
Maximum Screw Tangential Speed | 0.3 | m/s | - |
Mold Temperature (Optimum) | 90 | °C | - |
Mold Temperature (Minimum) | 80 | °C | - |
Mold Temperature (Maximum) | 100 | °C | - |
Annealing Time (Optional) | 30 | min/mm | - |
Drying Temperature | 80 | °C | - |
Annealing Temperature | 160 | °C | - |
Drying Time (Dehumidified Dryer) | 2 - 4 | h | - |
Hold Pressure Time | 8 | s/mm | - |
Hold Pressure Range | 80 - 100 | MPa | - |
Drying Recommended | yes | - | - |
Processing Moisture Content | max. 0.2 | % | - |
VDA Properties
Value | Units | Test Method / Conditions | |
Emissions | max. 2 | mg/kg | VDA 275 |
Rheological Properties
Value | Units | Test Method / Conditions | |
Melt Volume-Flow Rate (at 190°C, 2.16 kg) | 13 | cm³/10min | ISO 1133 |
Melt Mass Flow Rate (at 190°C, 2.16 kg) | 15 | g/10min | ISO 1133 |
Mold Shrinkage (Parallel) | 2 | % | ISO 294-4, 2577 |
Mold Shrinkage (Normal) | 1.9 | % | ISO 294-4, 2577 |
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Delrin® 500CPE NC010
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