Jiangsu Kingsder New Material Technology Co., Ltd. is one of the leading manufacturers and suppliers of high flow pc resin in China. We are committed to providing high quality and UL recognized plastic raw materials to global clients. If you're going to wholesale cheap high flow pc resin, welcome to get quotation and free sample from our factory. We also accept customized orders.
Description
High Flow PC Pellets refer to grades with a high melt flow rate, generally an MFR of 20 or above. Compared with low-MFR PC, its flow more smoothly; at the same temperature and pressure, the melt fills the mold faster.
Parts designed to be thin, light, and intricate depend on pellet flowability. In thin-wall molding, when the flow is not enough, ribs, corners, and fine holes at the far end of the cavity cannot be fully filled. The resulting parts come out short-shot or with visible flow marks, failing to meet the appearance requirements.
In terms of performance, premium High Flow PC Pellets deliver good impact toughness and heat resistance at the same time. On top of the high-flow base, other properties can be tailored to customer needs. For example, SABIC LEXAN ML7682 offers high flow together with flame retardancy, and LEXAN LSHF combines high flow with stable UV resistance.
High Flow PC Pellets are mainly applied in the electronics and lighting industries. Products such as thin-wall phone housings and phone accessories, charger housings, LED lamp covers, and light guide parts rely on high flow to fill thin-wall complex cavities. Many automotive parts also require high-flow PC - thin-wall interior parts like instrument panel trim strips and air vent blades need both easy molding and impact resistance. Medical and precision packaging products also demand good flow, for example micro-injection thin-wall parts and reagent kit structural parts, where fine details cannot be achieved without sufficient flow.
Product Specifications
| PROPERTIES | TYPICAL VALUES | UNITS | TEST METHODS |
| Tensile Stress, yld, Type I, 50 mm/min | 60 | MPa | ASTM D638 |
| Tensile Strain, brk, Type I, 50 mm/min | 130 | % | ASTM D638 |
| Tensile Modulus, 5 mm/min | 2270 | MPa | ASTM D638 |
| Flexural Stress, yld, 1.3 mm/min, 50 mm span | 100 | MPa | ASTM D790 |
| Flexural Modulus, 1.3 mm/min, 50 mm span | 2240 | MPa | ASTM D790 |
| Hardness, Rockwell R | 120 | - | ASTM D785 |
| Izod Impact, notched, 23°C | 728 | J/m | ASTM D256 |
| Izod Impact, notched, 0°C | 699 | J/m | ASTM D256 |
| Izod Impact, notched, -30°C | 110 | J/m | ASTM D256 |
| Vicat Softening Temp, Rate B/50 | 135 | °C | ASTM D1525 |
| HDT, 0.45 MPa, 3.2 mm, unannealed | 121 | °C | ASTM D648 |
| HDT, 1.82 MPa, 3.2mm, unannealed | 110 | °C | ASTM D648 |
| CTE, -40°C to 40°C, flow | 8.E-05 | 1/°C | ASTM E831 |
| Specific Gravity | 1.2 | - | ASTM D792 |
| Mold Shrinkage, flow, 3.2 mm | 0.5 - 0.7 | % | SABIC method |
| Melt Flow Rate, 300°C/1.2 kgf | 40 | g/10 min | ASTM D1238 |
| Melt Volume Rate, MVR at 300°C/1.2 kg | 38 | cm³/10 min | ISO 1133 |
| Light Transmission, 2.54 mm | 88 | % | ASTM D1003 |
| Haze, 2.54 mm | <1 | % | ASTM D1003 |
| UL Recognized, 94V-2 Flame Class Rating | ≥1 mm | - | UL 94 |
| *Take SABIC HFD1810 as an example | |||
FAQ
Q: How to choose the right flow grade?
A: The selection rule is simple - choose an MFR high enough to fill the mold cavity completely; a higher MFR is not always better. For thin and complex cavities, grades with MFR of 20–25 are commonly used; for ultra-thin large parts, grades with MFR of 39–42 are recommended.
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