S-Plastics Ultem STM1700 resin isSiltem STM1700 is a flexible copolymer designed for wire and cable applications. It offers a halogen free (according VDE 0472) flame retardant solution that also offers low smoke emission and toxicity. It is an amber colored transparent material that can be selfcolored and easily processed on conventional equipment. The material may also have a fit in flexible profiles or injection molded parts.
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 5 mm/min | 62 | MPa | ASTM D 638 |
| Tensile Stress, brk, Type I, 5 mm/min | 53 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 5 mm/min | 5 | % | ASTM D 638 |
| Tensile Strain, brk, Type I, 5 mm/min | 20 | % | ASTM D 638 |
| Tensile Modulus, 5 mm/min | 2400 | MPa | ASTM D 638 |
| Flexural Stress | 94 | MPa | ASTM D 790 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 94 | MPa | ASTM D 790 |
| Flexural Modulus | 2150 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2150 | MPa | ASTM D 790 |
| Hardness, Shore D | 80 | - | ASTM D 2240 |
| Taber Abrasion, CS-17, 1 kg | 50 | mg/1000cy | ASTM D 1044 |
| Tensile Stress, yield, 50 mm/min | 68 | MPa | ISO 527 |
| Tensile Stress, break, 50 mm/min | 59 | MPa | ISO 527 |
| Tensile Strain, yield, 50 mm/min | 5 | % | ISO 527 |
| Tensile Strain, break, 50 mm/min | 15 | % | ISO 527 |
| Tensile Modulus, 1 mm/min | 2300 | MPa | ISO 527 |
| Flexural Stress, yield, 2 mm/min | 98 | MPa | ISO 178 |
| Flexural Modulus, 2 mm/min | 2000 | MPa | ISO 178 |
| Tear Strength @ 1.6mm | 37 | N/mm | ISO 34 (Method A) |
| IMPACT | Value | Unit | Standard |
| Izod Impact, notched, 23°C | 175 | J/m | ASTM D 256 |
| Izod Impact, notched 80*10*4 +23°C | 16 | kJ/m² | ISO 180/1A |
| Izod Impact, notched 80*10*4 -30°C | 8 | kJ/m² | ISO 180/1A |
| THERMAL | Value | Unit | Standard |
| HDT, 1.82 MPa, 3.2mm, unannealed | 145 | °C | ASTM D 648 |
| Vicat Softening Temp, Rate B/120 | 180 | °C | ISO 306 |
| HDT/Bf, 0.45 MPa Flatw 80*10*4 sp=64mm | 164 | °C | ISO 75/Bf |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.2 | - | ASTM D 792 |
| Mold Shrinkage, flow, 3.2 mm | 0.87 - 0.92 | % | S-Plastics Method |
| Melt Flow Rate, 295°C/6.6 kgf | 7 | g/10 min | ASTM D 1238 |
| Density | 1.2 | g/cm³ | ISO 1183 |
| Water Absorption, (23°C/sat) | 0.76 | % | ISO 62 |
| Matrix Tg | 200 | °C | DMA |
| ELECTRICAL | Value | Unit | Standard |
| Volume Resistivity | >1.E+16 | Ohm-cm | ASTM D 257 |
| Surface Resistivity | >1.E+15 | Ohm | ASTM D 257 |
| Dielectric Strength, in oil, 3.2 mm | 16.7 | kV/mm | ASTM D 149 |
| Relative Permittivity, 100 Hz | 3.13 | - | ASTM D 150 |
| Relative Permittivity, 100 kHz | 3 | - | ASTM D 150 |
| Relative Permittivity, 1 MHz | 3.04 | - | ASTM D 150 |
| Dissipation Factor, 100 Hz | 0.011 | - | ASTM D 150 |
| Dissipation Factor, 100 kHz | 0.0061 | - | ASTM D 150 |
| Dissipation Factor, 1 MHz | 0.0054 | - | ASTM D 150 |
| FLAME CHARACTERISTICS | Value | Unit | Standard |
| UL Compliant, 94V-0 Flame Class Rating (3)(4) | 1.6 | mm | UL 94 by GE |
| Oxygen Index (LOI) | 48 | % | ASTM D 2863 |
| Source GMD, last updated:02/08/2008 | |||
| Injection Molding | Value | Unit |
| Drying Temperature | 105 | °C |
| Drying Time | 4 - 6 | hrs |
| Drying Time (Cumulative) | 8 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Melt Temperature | 320 - 330 | °C |
| Nozzle Temperature | 320 - 330 | °C |
| Front - Zone 3 Temperature | 320 - 330 | °C |
| Middle - Zone 2 Temperature | 320 - 330 | °C |
| Rear - Zone 1 Temperature | 320 - 330 | °C |
| Mold Temperature | 110 - 120 | °C |
| Back Pressure | 0.3 - 0.7 | MPa |
| Screw Speed | 50 - 100 | rpm |
| Shot to Cylinder Size | 40 - 60 | % |
| Vent Depth | 0.025 - 0.076 | mm |
| Parameter | ||
| Wire Coating Extrusion | Value | Unit |
| Drying Temperature | 110 - 130 | °C |
| Drying Time | 4 - 6 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Extruder Length/Diameter Ratio (L/D) | 22:1 to 28:1 | - |
| Compression Ratio | 2.1:1 to 2.7:1 | - |
| Feed - Compression - Metering | 10 - 5 - 10 | D |
| Screw Speed | 5 - 50 | rpm |
| Feed Zone Temperature | 310 - 340 | °C |
| Middle Zone Temperatures | 320 - 350 | °C |
| Head Zone Temperature | 330 - 360 | °C |
| Neck Temperature | 330 - 360 | °C |
| Cross-head Temperature | 330 - 360 | °C |
| Die Temperature | 330 - 360 | °C |
| Melt Temperature | 330 - 360 | °C |
| Conductor Pre-heat Temperature | 100 - 150 | °C |
| Screen Pack | 100 - 200 | - |
| Water Bath Temperature | 70 - 90 | °C |
| Source GMD, last updated:02/08/2008 | ||
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For more information please download the datasheet |
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S-Plastics Ultem STM1700.pdf |
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