+86-18958951029
HENGLI HC-21RT
- High heat resistant polycarbonate resin
- Blue tinted PC with high optical clarity
- Low haze and high light transmittance
- Excellent impact strength
- Stable injection molding performance
Product Overview
HENGLI HC-21RT includes two high-viscosity, heat-resistant polycarbonate (PC) grades: HC-21RTA and HC-21RTB.
Both grades feature a light blue tint and are designed for applications requiring enhanced thermal stability, high impact strength and excellent optical clarity.
These materials contain heat stabilizers and mold release agents, ensuring stable processing performance and consistent quality in injection molding of optical, automotive and industrial components.HENGLI HC-21RT
Key Properties
High heat resistance for elevated temperature applications
High impact strength and good toughness
Excellent optical clarity with light blue tint
Low haze and high light transmittance
Stable processing with heat stabilizers and mold release agents
Suitable for precision injection molding
Available Grades
HC-21RTA
Higher tensile strength
Slightly lower yellow index
Suitable for applications with higher mechanical performance requirements
HC-21RTB
Balanced mechanical and optical performance
Slightly higher yellow index
Suitable for general heat-resistant transparent applications
Typical Applications
HENGLI HC-21RT grades are commonly used in:
Automotive lighting lenses and transparent interior parts
Optical lenses, light guides and display covers
Transparent industrial and consumer housings
Heat-resistant covers and enclosures
Components requiring blue-tinted transparency
Technical Data (Typical Values)
Physical Properties
| Property | HC-21RTA | HC-21RTB | Test Standard |
|---|---|---|---|
| Density | 1.19–1.22 g/cm³ | 1.19–1.22 g/cm³ | GB/T 1033 |
| Melt Flow Rate (300°C, 1.2 kg) | 8 g/10 min | 8 g/10 min | GB/T 3682 |
| Large / Small Granules | ≤ 1 g/kg | ≤ 1 g/kg | SH/T 1541.1 |
| Heterochromatic Points | ≤ 1 pcs/300 g | ≤ 1 pcs/300 g | SH/T 1541.1 |
Mechanical Properties
| Property | HC-21RTA | HC-21RTB | Test Standard |
|---|---|---|---|
| Tensile Strength (Yield) | 65 MPa | 60–65 MPa | GB/T 1040 |
| Elongation at Break | 115 % | 110–115 % | GB/T 1040 |
| Elongation at Yield | 6.0 % | 6.0 % | GB/T 1040 |
| Flexural Strength | 90 MPa | 88–90 MPa | GB/T 9341 |
| Notched Izod Impact | 67 kJ/m² | 63–67 kJ/m² | GB/T 1843 |
Optical Properties (2000 μm)
| Property | HC-21RTA | HC-21RTB | Test Standard |
|---|---|---|---|
| Light Transmittance | 89.0 % | 89.0 % | GB/T 2410 |
| Haze | 0.3 % | 0.3 % | GB/T 2410 |
| Yellow Index | 2 | 2.5 | HG/T 3862 |
Thermal Properties
| Property | HC-21RTA | HC-21RTB | Test Standard |
|---|---|---|---|
| HDT (1.8 MPa) | 120 °C | 120 °C | GB/T 1634 |
Processing Information
Processing method: Injection molding
High viscosity formulation for dimensional stability
Heat stabilizers ensure consistent performance during processing
Why Choose HENGLI HC-21RT
High heat resistance for demanding environments
Excellent impact strength and durability
Blue tinted optical clarity with low haze
Stable and reliable processing behavior
Suitable for automotive, optical and industrial applications
Request a Quote
For technical datasheets, samples or pricing information, please contact us.
Our technical team will support you in selecting the right grade for your application.
