Delrin® 500AF is a medium viscosity acetal homopolymer containing 20% Teflon® PTFE fibers. It is designed for applications requiring low wear and/or low friction against steel, itself, or other plastics.Due to the color of the Teflon® PTFE fibers, the natural color of this material is brown.
Polymer Name: Polyacetal Homopolymer (POM)
Processing Methods: Extrusion, Injection Molding
Fillers Included: PTFE, PTFE Fiber
Additives Included: Lubricant (Unspecified), Mold Release Agent
Flexural Modulus: 2500.0 MPa
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Identification & Functionality
Additives Included
Fillers Included
Polymer Name
Plastics & Elastomers Functions
Technologies
Product Families
Delrin® 500AF Features & Benefits
Materials Features
Applications & Uses
Markets
Applications
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Properties
Chemical Resistance
Flame Rating
Part Marking Code
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Modulus | 2800 | MPa | ISO 527-1/-2 |
| Flexural Modulus | 2500 | MPa | ISO 178 |
| Compressive Strength | 110 | MPa | ISO 604 |
| Stress (at Break) | 50 | MPa | ISO 527-1/-2 |
| Strain (at Break) | 10 | % | ISO 527-1/-2 |
| Poisson's Ratio | 0.37 | - | - |
| Charpy Impact Strength (at 23°C) | 40 | kJ/m² | ISO 179/1eU |
| Charpy Impact Strength (at -30°C) | 35 | kJ/m² | ISO 179/1eU |
| Notched Charpy Impact Strength (at 23°C) | 3 | kJ/m² | ISO 179/1eA |
| Notched Charpy Impact Strength (at -30°C) | 3 | kJ/m² | ISO 179/1eA |
| Notched Izod Impact Strength (at 23°C) | 3 | kJ/m² | ISO 180/1A |
| Hardness (Rockwell Scale M) | 74 | - | ISO 2039-2 |
| Hardness (Rockwell Scale R) | 119 | - | ISO 2039-2 |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Resin Identification | POM-SF20 | - | ISO 1043 |
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) | 92 | °C | ISO 75-1/-2 |
| Temperature of Deflection Under Load (0.45 Mpa) | 160 | °C | ISO 75-1/-2 |
| Coefficient of Linear Thermal Expansion (Parallel) | 110 | E-6/K | ISO 11359-1/-2 |
| Coefficient of Linear Thermal Expansion (Normal) | 100 | E-6/K | ISO 11359-1/-2 |
| Relative Thermal Index (Electrical, 1.5mm) | 105 | °C | UL 746B |
| Relative Thermal Index (Electrical, 3mm) | 105 | °C | UL 746B |
| Relative Thermal Index (Impact, 1.5mm) | 85 | °C | UL 746B |
| Relative Thermal Index (Impact, 3mm) | 85 | °C | UL 746B |
| Relative Thermal Index (Strength, 1.5mm) | 90 | °C | UL 746B |
| Relative Thermal Index (Strength, 3mm) | 90 | °C | UL 746B |
| TGA curve | available | - | ISO 11359-1/-2 |
Electrical Properties
| Value | Units | Test Method / Conditions | |
| Surface Resistivity | min. 1E15 | Ohm | IEC 62631-3-2 |
| Relative Permittivity (at 1MHz) | 3.1 | - | IEC 62631-2-1 |
| Dissipation Factor (at 1 MHz) | 90 | E-4 | IEC 62631-2-1 |
| Comparative Tracking Index | 600 | - | IEC 60112 |
Flammability
| Value | Units | Test Method / Conditions | |
| FMVSS Class | B | - | ISO 3795 (FMVSS 302) |
| Burning Behavior (at 1.5mm Nominal Thickness) | UL94 HB | class | IEC 60695-11-10 |
| Burning Behavior (at 3mm Thickness) | UL94 HB | class | IEC 60695-11-10 |
| Glow Wire Flammability Index (at 3mm) | 600 | °C | IEC 60695-2-12 |
| Burning Rate (at 1mm Thickness) | max. 80 | mm/min | ISO 3795 (FMVSS 302) |
Other Properties
| Value | Units | Test Method / Conditions | |
| Humidity Absorption (at 2mm) | 0.2 | % | Sim. to ISO 62 |
| Water Absorption (at 2mm) | 1 | % | Sim. to ISO 62 |
| Water Absorption (Immersion 24h) | 0.25 | % | Sim. to ISO 62 |
| Density of Melt | 1280 | kg/m³ | - |
| Density | 1530 | kg/m³ | ISO 1183 |
Processing Information (Extrusion)
| Value | Units | Test Method / Conditions | |
| Melt Temperature Range | 195 - 205 | °C | - |
| Melt Temperature (Optimum) | 200 | °C | - |
| Drying Time (Dehumidified Dryer) | 2 - 4 | h | - |
| Drying Temperature | 75 - 85 | °C | - |
| Processing Moisture Content | max. 0.2 | % | - |
Processing Information (Injection Molding)
| Value | Units | Test Method / Conditions | |
| Drying Temperature | 80 | °C | - |
| Drying Recommended | yes | - | - |
| Drying Time (Dehumidified Dryer) | 2 - 4 | h | - |
| Processing Moisture Content | max. 0.2 | % | - |
| Hold Pressure Range | 80 - 100 | MPa | - |
| Hold Pressure Time | 8 | s/mm | - |
| Annealing Temperature | 160 | °C | - |
| Melt Temperature (Optimum) | 215 | °C | - |
| Melt Temperature (Minimum) | 210 | °C | - |
| Melt Temperature (Maximum) | 220 | °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 | - |
Rheological Properties
| Value | Units | Test Method / Conditions | |
| Melt Mass Flow Rate (at 190°C, 2.16 kg) | 5 | g/10min | ISO 1133 |
| Mold Shrinkage (Parallel) | 2 | % | ISO 294-4, 2577 |
| Mold Shrinkage (Normal) | 1.4 | % | ISO 294-4, 2577 |
Chemical Resistance
| Chemical Type | Chemical Name | Resistance |
| Acids | Acetic Acid (5% by mass) (23°C) | Probably Resistant |
| Acids | Chromic Acid solution (40% by mass) (23°C) | Not Recommended |
| Acids | Citric Acid solution (10% by mass) (23°C) | Not Recommended |
| Acids | Hydrochloric Acid (36% by mass) (23°C) | Not Recommended |
| Acids | Lactic Acid (10% by mass) (23°C) | Not Recommended |
| Acids | Nitric Acid (40% by mass) (23°C) | Not Recommended |
| Acids | Sulfuric Acid (38% by mass) (23°C) | Not Recommended |
| Acids | Sulfuric Acid (5% by mass) (23°C) | Not Recommended |
| Alcohols | Ethanol (23°C) | Probably Resistant |
| Alcohols | Isopropyl alcohol (23°C) | Probably Resistant |
| Alcohols | Methanol (23°C) | Probably Resistant |
| Bases | Ammonium Hydroxide solution (10% by mass) (23°C) | Not Recommended |
| Bases | Sodium Hydroxide solution (1% by mass) (23°C) | Not Recommended |
| Bases | Sodium Hydroxide solution (35% by mass) (23°C) | Not Recommended |
| Ethers | Diethyl ether (23°C) | Probably Resistant |
| Hydrocarbons | iso-Octane (23°C) | Probably Resistant |
| Hydrocarbons | n-Hexane (23°C) | Probably Resistant |
| Hydrocarbons | Toluene (23°C) | Probably Resistant |
| Ketones | Acetone (23°C) | Probably Resistant |
| Mineral oils | Insulating Oil (23°C) | Probably Resistant |
| Mineral oils | SAE 10W40 multigrade motor oil (130°C) | Not Recommended |
| Mineral oils | SAE 10W40 multigrade motor oil (23°C) | Probably Resistant |
| Mineral oils | SAE 80/90 hypoid-gear oil (130°C) | Not Recommended |
| Other | 1% nonylphenoxy-polyethyleneoxy ethanol in water (23°C) | Probably Resistant |
| Other | 50% Oleic acid + 50% Olive Oil (23°C) | Probably Resistant |
| Other | DOT No. 4 Brake fluid (130°C) | Not Recommended |
| Other | Ethyl Acetate (23°C) | Probably Resistant |
| Other | Ethylene Glycol (50% by mass) in water (108°C) | Not Recommended |
| Other | Hydrogen peroxide (23°C) | Not Recommended |
| Other | Phenol solution (5% by mass) (23°C) | Not Recommended |
| Other | Water (23°C) | Probably Resistant |
| Other | Water (90°C) | Not Recommended |
| Salt solutions | Sodium Carbonate solution (2% by mass) (23°C) | Not Recommended |
| Salt solutions | Sodium Carbonate solution (20% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Chloride solution (10% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Hypochlorite solution (10% by mass) (23°C) | Not Recommended |
| Salt solutions | Zinc Chloride solution (50% by mass) (23°C) | Not Recommended |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (>90°C) | Not Recommended |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (23°C) | Probably Resistant |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (90°C) | Not Recommended |
| Standard Fuels | ISO 1817 Liquid 1 - E5 (60°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 2 - M15E4 (60°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 3 - M3E7 (60°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 4 - M15 (60°C) | Probably Resistant |
| Standard Fuels | Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C) | Probably Resistant |
| Standard Fuels | Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C) | Probably Resistant |
Regulatory & Compliance
Certifications & Compliance
OEM Standards
Technical Details & Test Data
Viscosity vs Shear Rate
Shear Stress vs Shear Rate
Dynamic Shear Modulus vs Temperature
Stress vs Strain
Secant Modulus vs Strain
Specific Volume Temperature (pvT)
Packaging & Availability
Country Availability
Regional Availability
Delrin® 500AF
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