Delrin® 100ST BK602 is a super-toughened, high viscosity acetal homopolymer grade with superior impact resistance. It is designed for highly stressed parts where outstanding toughness is essential.
Polymer Name: Polyacetal Homopolymer (POM)
Processing Methods: Injection Molding, Extrusion
Additives Included: Mold Release Agent, Lubricant (Unspecified)
Flexural Modulus: 1100.0 MPa
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Identification & Functionality
Additives Included
Polymer Name
Plastics & Elastomers Functions
Technologies
Product Families
Delrin® 100ST BK602 Features & Benefits
Applications & Uses
Applications
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Properties
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Modulus | 1400 | MPa | ISO 527-1/-2 |
| Yield Stress | 40 | MPa | ISO 527-1/-2 |
| Yield Strain | 30 | % | ISO 527-1/-2 |
| Flexural Modulus | 1100 | MPa | ISO 178 |
| Poisson's Ratio | 0.43 | - | - |
| Nominal Strain (at Break) | min. 50 | % | ISO 527-1/-2 |
| Charpy Impact Strength (at 23°C) | N | kJ/m² | ISO 179/1eU |
| Charpy Impact Strength (at -30°C) | N | kJ/m² | ISO 179/1eU |
| Notched Charpy Impact Strength (at 23°C) | 80 | kJ/m² | ISO 179/1eA |
| Notched Charpy Impact Strength (at -30°C) | 14 | kJ/m² | ISO 179/1eA |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Resin Identification | POM-HI | - | 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) | 60 | °C | ISO 75-1/-2 |
| Temperature of Deflection Under Load (0.45 Mpa) | 102 | °C | ISO 75-1/-2 |
| Coefficient of Linear Thermal Expansion (Parallel) | 120 | E-6/K | ISO 11359-1/-2 |
| Coefficient of Linear Thermal Expansion (Normal) | 120 | 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) | 85 | °C | UL 746B |
| Relative Thermal Index (Strength, 3mm) | 85 | °C | UL 746B |
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 Rate (at 1mm Thickness) | max. 80 | mm/min | ISO 3795 (FMVSS 302) |
Other Properties
| Value | Units | Test Method / Conditions | |
| Density | 1340 | kg/m³ | ISO 1183 |
Processing Information (Extrusion)
| Value | Units | Test Method / Conditions | |
| Melt Temperature Range | 195 - 205 | °C | - |
| Melt Temperature (Optimum) | 200 | °C | - |
| Drying Temperature | 80 | °C | - |
| Processing Moisture Content | max. 0.05 | % | - |
| Drying Time (Dehumidified Dryer) | 4 - 8 | h | - |
Processing Information (Injection Molding)
| Value | Units | Test Method / Conditions | |
| Drying Temperature | 80 | °C | - |
| Drying Recommended | yes | - | - |
| Drying Time (Dehumidified Dryer) | 4 - 8 | h | - |
| Processing Moisture Content | max. 0.05 | % | - |
| Hold Pressure Range | 60 - 80 | MPa | - |
| Hold Pressure Time | 7.5 | s/mm | - |
| Annealing Temperature | 160 | °C | - |
| Melt Temperature (Optimum) | 205 | °C | - |
| Melt Temperature (Minimum) | 200 | °C | - |
| Melt Temperature (Maximum) | 210 | °C | - |
| Maximum Screw Tangential Speed | 0.2 | m/s | - |
| Mold Temperature (Optimum) | 50 | °C | - |
| Mold Temperature (Minimum) | 40 | °C | - |
| Mold Temperature (Maximum) | 60 | °C | - |
| Annealing Time (Optional) | 30 | min/mm | - |
VDA Properties
| Value | Units | Test Method / Conditions | |
| Emissions | max. 8 | mg/kg | VDA 275 |
Rheological Properties
| Value | Units | Test Method / Conditions | |
| Melt Volume-Flow Rate (at 190°C, 2.16 kg) | 1.8 | cm³/10min | ISO 1133 |
| Melt Mass Flow Rate (at 190°C, 2.16 kg) | 2.1 | g/10min | ISO 1133 |
| Mold Shrinkage (Parallel) | 0.8 | % | ISO 294-4, 2577 |
| Mold Shrinkage (Normal) | 1.1 | % | ISO 294-4, 2577 |
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Technical Details & Test Data
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Delrin® 100ST BK602
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