Sabic LEXAN™ PC Resin 121SRM
Plastic Granules
SABIC PC Lexan 121SRM General Purpose Grade
LEXAN 121SRM is an easy-flow, impact-modified, and super-release grade polycarbonate resin, designed for high-volume, complex injection molding with exceptional demolding.
Associated Documents
TDS Asia
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Water Absorption (23°C/24 hrs): 0.15% (ASTM D570)
- Mold Shrinkage, flow, 3.2 mm: 0.5 – 0.7% (SABIC Method)
- Melt Flow Rate, 300°C/1.2 kgf: 18 g/10 min (ASTM D1238)
Mechanical Properties
- Tensile Stress, Yield, Type I, 50 mm/min: 65 MPa (ASTM D638)
- Tensile Strain, Break, Type I, 50 mm/min: 143% (ASTM D638)
- Flexural Stress, Yield, 1.3 mm/min, 50 mm span: 97 MPa (ASTM D790)
- Flexural Modulus, 1.3 mm/min, 50 mm span: 2300 MPa (ASTM D790)
Impact Properties
- Izod Impact, Notched, 23°C: 801 J/m (ASTM D256)
Thermal Properties
- Heat Deflection Temperature (HDT), 1.82 MPa, 3.2 mm, Unannealed: 123°C (ASTM D648)
- Heat Deflection Temperature (HDT), 1.82 MPa, 6.4 mm, Unannealed: 133°C (ASTM D648)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3 – 4 hours
- Cumulative Drying Time: 48 hours
- Melt Temperature: 280 – 305°C
- Mold Temperature: 70 – 95°C
Features & Benefits
Superior Mold Release
This LEXAN 121SRM resin significantly reduces ejection forces, preventing part sticking and deformation for faster cycle times and lower scrap rates.
Exceptional Impact Resistance
With a high notched Izod impact strength, LEXAN™ 121SRM resin produces durable components that can withstand sudden impacts and rough handling in demanding environments.
Excellent Flow & Processability
The easy-flow nature of this PC resin ensures complete filling of intricate and thin-walled molds, resulting in fewer short shots and improved surface finish.
Use & Applications
- Thin-walled and complex consumer electronics housings
- Durable components for power tools and appliances
- Automotive interior parts and connectors
- High-volume production parts requiring fast cycle times