S-Plastics Valox 325MFresin is PBT. Higher flow version of 325 for restrictive gate tooling. High resolution filtering.
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 48 | MPa | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 180 | % | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 81 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2340 | MPa | ASTM D 790 |
| Hardness, Rockwell R | 119 | - | ASTM D 785 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched, 23°C | 1602 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 53 | J/m | ASTM D 256 |
| Modified Gardner, 23°C | 40 | J | ASTM D 3029 |
| THERMAL | Value | Unit | Standard |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 150 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 6.4 mm, unannealed | 55 | °C | ASTM D 648 |
| Relative Temp Index, Elec | 120 | °C | UL 746B |
| Relative Temp Index, Mech w/impact | 120 | °C | UL 746B |
| Relative Temp Index, Mech w/o impact | 140 | °C | UL 746B |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.31 | - | ASTM D 792 |
| Specific Volume | 0.76 | cm³/g | ASTM D 792 |
| Water Absorption, 24 hours | 0.1 | % | ASTM D 570 |
| Water Absorption, equilibrium, 23C | 0.34 | % | ASTM D 570 |
| Mold Shrinkage, flow, 0.75-2.3 mm | 0.9 - 1.6 | % | S-Plastics Method |
| Mold Shrinkage, flow, 2.3-4.6 mm | 1.5 - 2.3 | % | S-Plastics Method |
| Mold Shrinkage, xflow, 0.75-2.3 mm | 1 - 1.7 | % | S-Plastics Method |
| Mold Shrinkage, xflow, 2.3-4.6 mm | 1.6 - 2.4 | % | S-Plastics Method |
| ELECTRICAL | Value | Unit | Standard |
| Volume Resistivity | >2.2E+16 | Ohm-cm | ASTM D 257 |
| Dielectric Strength, in air, 3.2 mm | 17.8 | kV/mm | ASTM D 149 |
| Relative Permittivity, 100 Hz | 3.17 | - | ASTM D 150 |
| Relative Permittivity, 1 MHz | 3.13 | - | ASTM D 150 |
| Dissipation Factor, 100 Hz | 0.0014 | - | ASTM D 150 |
| Dissipation Factor, 1 MHz | 0.0098 | - | ASTM D 150 |
| Arc Resistance, Tungsten {PLC} | 4 | PLC Code | ASTM D 495 |
| Hot Wire Ignition {PLC) | 3 | PLC Code | UL 746A |
| High Voltage Arc Track Rate {PLC} | 1 | PLC Code | UL 746A |
| High Ampere Arc Ign, surface {PLC} | 0 | PLC Code | UL 746A |
| Comparative Tracking Index (UL) {PLC} | 0 | PLC Code | UL 746A |
| FLAME CHARACTERISTICS | Value | Unit | Standard |
| UL Recognized, 94HB Flame Class Rating (3) | 0.83 | mm | UL 94 |
| UV-light, water exposure/immersion | F1 | - | UL 746C |
| Source GMD, last updated:09/06/2002 |
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For more information please download the datasheet |
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S-Plastics Valox 325MF.pdf |
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