Sabic Lexan PC 940A Description
Lexan is a product of Sabic, a polycarbonate resin which has high-quality heat resistance properties, physical and mechanical properties such as good transparency and extremely high impact strength. Polycarbonate colorless transparent, heat resistant, shock resistant, flame retardant (BI grade), good mechanical properties in the ordinary use temperature. The same properties are close to polymethyl Compared with methyl acrylate, polycarbonate has good impact resistance, high refractive index, good processing performance, and has UL94 V-0 flame retardant performance. LEXAN 940A resin by Sabic is a 10 MFR polycarbonate. Mold release. Flame retardant, UL94 V0 rated. Available in transparent and translucent colors. Lexan 940A is a general purpose resin injection moldable grade.It is designed to meet the needs of various applications.
Properties
| 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 | 55 | MPa | ASTM D 638 |
| Tensile Strain, yld, Type I, 50 mm/min | 7 | % | ASTM D 638 |
| Tensile Strain, brk, Type I, 50 mm/min | 90 | % | ASTM D 638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 91 | MPa | ASTM D 790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2240 | MPa | ASTM D 790 |
| Hardness, Rockwell M | 70 | – | ASTM D 785 |
| Hardness, Rockwell R | 118 | – | ASTM D 785 |
| Taber Abrasion, CS-17, 1 kg | 10 | mg/1000cy | ASTM D 1044 |
| IMPACT | Value | Unit | Standard |
| Izod Impact, unnotched, 23°C | 3204 | J/m | ASTM D 4812 |
| Izod Impact, notched, 23°C | 640 | J/m | ASTM D 256 |
| Tensile Impact, Type “S” | 525 | kJ/m² | ASTM D 1822 |
| Falling Dart Impact (D 3029), 23°C | 169 | J | ASTM D 3029 |
| THERMAL | Value | Unit | Standard |
| Vicat Softening Temp, Rate B/50 | 151 | °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 |
| CTE, -40°C to 95°C, flow | 6.84E-05 | 1/°C | ASTM E 831 |
| Thermal Conductivity | 0.19 | W/m-°C | ASTM C 177 |
| Relative Temp Index, Elec | 130 | °C | UL 746B |
| Relative Temp Index, Mech w/impact | 120 | °C | UL 746B |
| Relative Temp Index, Mech w/o impact | 130 | °C | UL 746B |
| PHYSICAL | Value | Unit | Standard |
| Specific Gravity | 1.21 | – | ASTM D 792 |
| Specific Volume | 0.83 | cm³/g | ASTM D 792 |
| Density | 1.217 | g/cm³ | ASTM D 792 |
| Water Absorption, 24 hours | 0.15 | % | ASTM D 570 |
| Water Absorption, equilibrium, 23C | 0.35 | % | ASTM D 570 |
| Water Absorption, equilibrium, 100°C | 0.58 | % | ASTM D 570 |
| Mold Shrinkage, flow, 3.2 mm | 0.5 – 0.7 | % | SABIC Method |
| Melt Flow Rate, 300°C/1.2 kgf | 10 | g/10 min | ASTM D 1238 |
| OPTICAL | Value | Unit | Standard |
| Light Transmission | 85 | % | ASTM D 1003 |
| Haze | 1 | % | ASTM D 1003 |
| Refractive Index | 1.586 | – | ASTM D 542 |
| ELECTRICAL | Value | Unit | Standard |
| Volume Resistivity | >1.E+17 | Ohm-cm | ASTM D 257 |
| Dielectric Strength, in air, 3.2 mm | 16.7 | kV/mm | ASTM D 149 |
| Relative Permittivity, 50/60 Hz | 3.01 | – | ASTM D 150 |
| Relative Permittivity, 1 MHz | 2.96 | – | ASTM D 150 |
| Dissipation Factor, 50/60 Hz | 0.0009 | – | ASTM D 150 |
| Dissipation Factor, 1 MHz | 0.01 | – | ASTM D 150 |
| Arc Resistance, Tungsten {PLC} | 7 | PLC Code | ASTM D 495 |
| Hot Wire Ignition {PLC) | 2 | PLC Code | UL 746A |
| High Voltage Arc Track Rate {PLC} | 3 | PLC Code | UL 746A |
| High Ampere Arc Ign, surface {PLC} | 3 | PLC Code | UL 746A |
| Comparative Tracking Index (UL) {PLC} | 2 | PLC Code | UL 746A |
| FLAME CHARACTERISTICS | Value | Unit | Standard |
| UL Recognized, 94V-2 Flame Class Rating (3) | 1.47 | mm | UL 94 |
| UL Recognized, 94V-0 Flame Class Rating (3) | 2.99 | mm | UL 94 |
| Radiant Panel Listing | YES | – | UL Tested |
| Oxygen Index (LOI) | 35 | % | ISO 4589 |
| Source GMD, last updated:01/04/2000 | |||
Processing
| Injection Molding | Value | Unit |
| Drying Temperature | 120 | °C |
| Drying Time | 3 – 4 | hrs |
| Drying Time (Cumulative) | 48 | hrs |
| Maximum Moisture Content | 0.02 | % |
| Melt Temperature | 295 – 315 | °C |
| Nozzle Temperature | 290 – 310 | °C |
| Front – Zone 3 Temperature | 295 – 315 | °C |
| Middle – Zone 2 Temperature | 280 – 305 | °C |
| Rear – Zone 1 Temperature | 215 – 295 | °C |
| Mold Temperature | 70 – 95 | °C |
| Back Pressure | 0.3 – 0.7 | MPa |
| Screw Speed | 40 – 70 | rpm |
| Shot to Cylinder Size | 40 – 60 | % |
| Vent Depth | 0.025 – 0.076 | mm |
| Source GMD, last updated:01/04/2000 | ||
For more information please download the datasheet
Company Profile
1.Professional focus
Professional engineer service team with more than 15 years of experience; Provide a complete set of solutions and services from material sales, quality appraisal, mold design, molding and processing.
2.Perfect service
We have served many high-quality and excellent domestic and foreign enterprises, and We understand the customers’purchasing, product and service needs; From response time, price advantage, problem handling, etc., we provide comprehensive services based on customer needs in multiple dimensions.
3. Inventory supporting
Abundant inventory supporting resources, which are located in Guangzhou, Dongguan, Shenzhen free trade zone and Hong Kong. It has set up warehouses to stock goods, with a standing stock of more than 1000 tons, which can meet the timely spot purchase demand of customers and ensure the reliability and stability of the customer’s material supply chain.
4.Logistics distribution
We have long-term and stable logistics partners. According to the needs of customers, we formulate efficient istribution plans and deliver high-quality products to customers in time.
5. Speed advantage
Professional engineer service team with more than 15 years of experience; Provide a complete set of solutions and services from material sales, quality appraisal, mold design, molding and processing.
6. Small batch type selection technical support
Accept small batch orders of 5kg at least; The rofessional engineer team can cooperate with customers to carry out material selection in the early stage of production, and provide corresponding material recommendations ccording to customer production and product requirements
7. Quality assurance
Our products are all from well-known manufacturers. Each batch of materials has various inspection reports and certificates including original factory certificate, MSDS, ROHS, SGS, reach,, EU, UL, COC / COA, etc.
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