S-Plastics Lexan ML7446 resin is PRELIMINARY DATA. FDA compliant (color limited) PC. 3.0 MFR. Potable water/extrusion blowmolding applications.
| TYPICAL PROPERTIES (1) | |||
| MECHANICAL | Value | Unit | Standard |
| Tensile Stress, yld, Type I, 50 mm/min | 62 | MPa | ASTM D 638 |
| Tensile Stress, brk, Type I, 50 mm/min | 65 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 50 mm/min | 7 | % | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 110 | % | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 93 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2340 | MPa | ASTM D 790 |
| Hardness, Rockwell R | 118 | - | ASTM D 785 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched, 23°C | 3204 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 747 | J/m | ASTM D 256 |
| THERMAL | Value | Unit | Standard |
| Vicat Softening Temp, Rate B/50 | 157 | °C | ASTM D 1525 |
| HDT, 0.45 MPa, 6.4 mm, unannealed | 137 | °C | ASTM D 648 |
| HDT, 1.82 MPa, 6.4 mm, unannealed | 132 | °C | ASTM D 648 |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.2 | - | ASTM D 792 |
| Specific Volume | 0.83 | cm³/g | ASTM D 792 |
| Water Absorption, 24 hours | 0.15 | % | ASTM D 570 |
| Mold Shrinkage, flow, 3.2 mm | 0.5 - 0.7 | % | S-Plastics Method |
| Melt Flow Rate, 300°C/1.2 kgf | 2.5 | g/10 min | ASTM D 1238 |
| OPTICAL | Value | Unit | Standard |
| Light Transmission | 88 | % | ASTM D 1003 |
| Haze | 1 | % | ASTM D 1003 |
| Refractive Index | 1.586 | - | ASTM D 542 |
| Source GMD, last updated:02/28/2002 | |||
| • CAUTION: For production delays of two or more hours, reduce temperature setpoints to 150°C (300°F). | ||
| Parameter | ||
| Extrusion Blow Molding | Value | Unit |
| Drying Temperature | 115 - 120 | °C |
| Drying Time | 4 - 6 | hrs |
| Drying Time (Cumulative) | 48 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Minimum Moisture Content | 0.01 | % |
| Melt Temperature (Parison) | 265 - 275 | °C |
| Barrel - Zone 1 Temperature | 260 - 275 | °C |
| Barrel - Zone 2 Temperature | 260 - 275 | °C |
| Barrel - Zone 3 Temperature | 260 - 275 | °C |
| Barrel - Zone 4 Temperature | 260 - 275 | °C |
| Adapter - Zone 5 Temperature | 260 - 275 | °C |
| Head - Zone 6 - Top Temperature | 260 - 275 | °C |
| Head - Zone 7 - Bottom Temperature | 260 - 275 | °C |
| Screw Speed | 15 - 50 | rpm |
| Mold Temperature | 65 - 95 | °C |
| Die Temperature | 270 - 280 | °C |
| Source GMD, last updated:02/28/2002 | ||
| • Purge with HDPE prior to changing screw, head, or die tooling and/or machine shutdown. | ||
| • 24:1 L:D low shear 2.5:1 compression ratio screw recommended. Screw design affects melt temperature. Screw speed -- | ||
| 15-50 rpm suggested. Adjust actual rpm for desired output while maintaining desired melt temperature range. | ||
| THESE PROPERTY VALUES ARE NOT INTENDED FOR SPECIFICATION PURPOSES. | ||
| PLEASE CHECK WITH YOUR (LOCAL SALES OFFICE) FOR AVAILABILITY IN YOUR REGION | ||
| (1) Typical values only. Variations within normal tolerances are possible for various colors. All values are measured after at least 48 hours storage at 23°C/50% relative humidity. All properties, except the melt volume and melt flow rates, are measured on injection molded samples. All samples tested under ISO test standards are prepared according to ISO 294. |
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| (2) Only typical data for selection purposes. Not to be used for part or tool design. | ||
| (3) This rating is not intended to reflect hazards presented by this or any other material under actual fire conditions. | ||
| (4) Internal measurements according to UL standards. | ||
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For more information please download the datasheet |
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S-Plastics Lexan Ml7446.pdf |
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