Covestro Makrolon LED2245 PC
Application: Light guides Lenses,Optical applications
Density: 1190 kg / m³
Melt index: 34 cm³ / 10 min
Density: 1190 kg / m³
Melt index: 34 cm³ / 10 min
Covestro Makrolon LED2245 PC Description
Makrolon LED2245 is a low-viscosity polycarbonate resin (PC material) manufactured by Covestro A.G. It is optimized for applications requiring long optical paths (such as fiber optics), high light transmittance, and the ability to withstand intense LED illumination. It is commonly used in light guides and collimating optical elements.
Covestro Makrolon LED2245 PC Advantage
- High-transmittance PC resin, Unlike traditional polycarbonate, Makrolon LED2245 was developed specifically for optical applications and maintains an excellent transmittance of nearly 90% even in products with extremely thick walls, making it particularly suitable for applications with high transmittance requirements, such as optical lenses.
The figure on the left shows a comparison of the transmittance of PC sheets made from LED2245 at different thicknesses. It can be seen that even the extra-thick 18.1-mm sheet achieves 90% transmittance under 450-nm long-wavelength light, far exceeding that of conventional PC resin.
- UV and heat resistance. Automotive lighting components generate heat during use, which accelerates the yellowing of polycarbonate; . Through a specialized manufacturing process, Makrolon LED2245 offers both high-temperature resistance and UV resistance, its Vicat softening temperature is 145 °C, and its deformation temperature under a load of 0.45 is 138 °C,while effectively slowing the rate at which polycarbonate yellows due to high temperatures.
As shown in the figure on the left, the LED 2245 PC resin can still function normally for more than 5,000 hours at a high temperature of 120°C; only at the extreme low temperature of 135°C does yellowing accelerate rapidly, affecting normal operation.
Why choose Baiyou as Covestro Makrolon LED2245 PC supplier?
- Leading Optical Grade polycarbonate supplier (PC material) , 20+ years of experience in plastic product manufacturing and chemical raw material import and export
- Fastest Arrival, with warehouses in multiple ports
- 1,000+ types of resins are available, and we have cooperated with large petrochemical groups for 30+ years
- Free Samples for production testing
- Wholesale price, even a piece of goods is based on the wholesale price
Key Attributes
| Covestro Makrolon LED2245 PC | |||
| Product information | |||
| Manufacturer | Covestro A.G. | ||
| Other Certificates | MSDS | ||
| Part Marking Code | >PC material< | ||
| Color | Transparent polycarbonate | ||
| Material Shape | PC Pellets | ||
| Process | Injection molding | ||
| Features | ·Low viscosity ·High optical transmittance ·Easy release | ||
| Additives | Mold release | ||
| Applications | ·Optical lense ·Optics ·Light guides | ||
| Physical properties | Standard | Value | Unit |
| Density | ISO 1183 | 1190 | kg/m³ |
| Melt volume rate, MVR at 300℃/1.2kg | ISO 1133 | 34 | cm³/10min |
| Mold shrinkage, parallel, 60×60×2 mm; 500 bar | ISO 294-4 | 0.65 | % |
| Mold shrinkage, normal, 60×60×2 mm; 500 bar | ISO 294-4 | 0.70 | % |
| Bulk Density | ISO 60 | 660 | kg/m³ |
| Water absorption (saturation), water at 23℃ | ISO 62 | 0.3 | % |
| Water absorption (equilibrium), 23℃; 50 % r.h, | ISO 62 | 0.12 | % |
| Mechanical behavior | Standard | Value | Unit |
| Yield stress, 50 mm/min | ISO 527 | 63 | MPa |
| Yield strain, 50 mm/min | ISO 527 | 6 | % |
| Tensile modulus,1 mm/min | ISO 527 | 2350 | MPa |
| Stress at break, 50 mm/min | ISO 178 | 60 | MPa |
Strain at break, 50 mm/min | ISO 178 | 125 | % |
| Flexural modulus, 2 mm/min | ISO 178 | 2350 | MPa |
| Flexural strength, 2 mm/min | ISO 178 | 97 | MPa |
| Flexural stress at 3.5% flexural strain, 2 mm/min | ISO 178 | 73 | MPa |
| Flexural strain at flexural strength , 2 mm/min | ISO 178 | 7.1 | % |
| Impact | Standard | Value | Unit |
| Izod impact, unnotched 80*10*3 +23℃ | ISO 180/1U | NB | kJ/㎡ |
| Izod impact, unnotched 80*10*3 -30℃ | ISO 180/1U | NB | kJ/㎡ |
| Izod impact impact strength, 23℃ 3 mm | ISO 21305 | 55P | kJ/㎡ |
| Izod impact impact strength, -30℃ 3 mm | ISO 21305 | 55P | kJ/㎡ |
| Charpy impact strength, 23℃ | ISO 179-1/1eU | N | kJ/㎡ |
| Charpy impact strength, -30℃ | ISO 179-1/1eU | N | kJ/㎡ |
| Charpy impact strength, -60℃ | ISO 179-1/1eU | N | kJ/㎡ |
| Charpy notched impact strength 23℃ 3 mm | ISO 21305 | 60P(C) | kJ/㎡ |
| Charpy notched impact strength -30℃ 3 mm | ISO 21305 | 12C | kJ/㎡ |
| Puncture impact behavior maximum force, 23℃ | ISO 6603-2 | 4900 | N |
| Puncture impact behavior maximum force, -30℃ | ISO 6603-2 | 4900 | N |
| Puncture impact behavior puncture force, 23℃ | ISO 6603-2 | 55 | J |
| Puncture impact behavior puncture force, -30℃ | ISO 6603-2 | 60 | J |
| Ball indentation hardness, 358 N | ISO 2039-1 | 115 | N/m㎡ |
| Thermal | Standard | Value | Unit |
| Vicat Softening Temperature, rate B/50 | ISO 306 | 145 | °C |
| Vicat Softening Temperature, rate B/120 | ISO 306 | 146 | °C |
| Thermal conductivity, through plane 23℃; 50% r.h. | ISO 8302 | 0.2 | W/m·℃ |
| Coefficient of linear thermal expansion (CLTE), parallel 23 to 55℃ | ISO 11359-2 | 0.65 | 1/℃10⁻⁴/K |
| Coefficient of linear thermal expansion (CLTE), normal 23 to 55℃ | ISO 11359-2 | 0.65 | 1/℃10⁻⁴/K |
| Bruning behavior 0.75 mm | UL 94 | V-2 | |
| Bruning behavior 2.9 mm | UL 94 | HB | |
| Bruning rate (FMVSS-302), 1 mm | ISO 3795 | Passed | |
| Oxygen index, method A | ISO 4589-2 | 28 | % |
Temperature of deflection (HDT) under 1.8 MPa | ISO 75-1,-2 | 125 | ℃ |
Temperature of deflection (HDT) under 0.45 MPa | ISO 75-1,-2 | 138 | ℃ |
Glass transition temperature | ISO 11357 | 145 | ℃ |
| Resistance to heat (Ball pressure test) | IEC 60695-10-2 | 136 | ℃ |
| Relative Temp. Index (RTI, tensile impact strength), 1.5 mm | UL746B | 115 | ℃ |
| Relative Temp. Index (RTI, tensile strength), 1.5 mm | UL746B | 125 | ℃ |
| Relative Temp. Index (RTI, Electric strength), 1.5 mm | UL746B | 125 | ℃ |
Glow wire test (GWFI),1.0 mm | IEC 60695-2-12 | 850 | ℃ |
Glow wire test (GWFI),1.5 mm | IEC 60695-2-12 | 875 | ℃ |
Glow wire test (GWFI),3.0 mm | IEC 60695-2-12 | 930 | ℃ |
Glow wire test (GWIT), 0.75 mm | IEC 60695-2-13 | 850 | ℃ |
Glow wire test (GWIT),1.5 mm | IEC 60695-2-13 | 850 | ℃ |
Glow wire test (GWIT), 3 mm | IEC 60695-2-13 | 850 | ℃ |
Flash-ignition temperature | ASTM D1929 | 480 | ℃ |
Spontaneous ignition temperature | ASTM D1929 | 550 | ℃ |
| Electrical | Standard | Value | Unit |
| Volume resistivity | IEC 62631 | 1E14 | Ω.m |
| Surface resistivity | IEC 62631 | 1.E16 | Ω |
| Comparative tracking index (CTI) | IEC 60112 | 250 | V |
| Electric strength 1 mm | IEC 60243 | 34 | kV/mm |
| Dielectric Dissipation factor, 100 Hz | IEC 60250 | 0.0005 | |
| Dielectric Dissipation factor, 1 MHz | IEC 60250 | 0.00095 | |
| Relative permittivity, 100 Hz | IEC 60250 | 3.1 | |
| Optical | Standard | Value | Unit |
| Luminous transmittance (Clear transparent material), SCI; D65/10°; 1mm | ISO 11664 | 90 | % |
| Luminous transmittance (Clear transparent material), SCI; D65/10°; 2mm | ISO 11664 | 90 | % |
| Luminous transmittance (Clear transparent material), SCI; D65/10°; 3mm | ISO 11664 | ＞89 | % |
| Haze, 3mm | ASTM D1003 | <0.5 | % |
| Refractive index, procedure A | ISO 489 | 1.584 | |
Partners
We have established long-term relationships with 80+ well-known companies around the world |
Warehouse And Shipping
20+ years' experience consultant with a supply chain of 1000+ plastic raw materials in China. |
Quantity (tonnes) | 1-100 | 100-300 | >300 |
Lead time (days) | 7-10 | 10-15 | To be negotiated |
References and Notes
- Covestro ,"Makrolon LED2245 high transparent polycarbonate technical data sheet", Covestro A.G. , 11/06/2026
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