LG Chem ABS XR438
Plastic Granules
LG ABS XR438 Heat Resistant Grade
LG ABS XR438 is a premium ABS resin engineered specifically for automotive spoilers. It delivers ultra-high heat resistance and exceptional dimensional stability to withstand high-temperature painting processes without warping.
Typical property data
Physical Properties
- Specific Gravity: 1.07 (ISO 1183)
- Melt Flow Rate: 4.3 g/10min, at 220℃, 10kg (ISO 1133)
Mechanical Properties
- Tensile Strength at Yield: 45 MPa, at 23℃, 50mm/min, 4mm (ISO 527)
- Flexural Strength: 74 MPa, at 23℃, 2mm/min, 4mm (ISO 178)
- Flexural Modulus: 2550 MPa, at 23℃, 2mm/min, 4mm (ISO 178)
- Rockwell Hardness: 110 R-Scale (ISO 2039)
Impact Properties
- Izod Impact Strength (Notched): 10 kJ/m², at 23℃, 4mm (ISO 180/1A)
- Charpy Impact Strength (Notched): 9 kJ/m², at 23℃, 4mm (ISO 179/1eA)
Thermal Properties
- Heat Deflection Temperature: 105℃, at 1.8MPa, 4mm, unannealed (ISO 75)
- Vicat Softening Temperature: 122℃, with 50N, 50℃/h (ISO 306)
Processing Data
- Drying Temperature: 80 ~ 90℃
- Drying Time: 3 ~ 4 hours
- Injection Temperature: 220 ~ 290℃
- Mold Temperature: 40 ~ 80℃
- Screw Speed: 30 ~ 60 rpm
Features & Benefits
Withstands High-Temperature Painting
XR438 maintains its shape and strength through e-coat and paint oven cycles (HDT 105°C), preventing deformation and ensuring a perfect, high-gloss finish on spoilers and other exterior parts.
Excellent Paint Adhesion & Finish
This material provides a superior surface for painting, resulting in a flawless Class-A finish. Its inherent stability minimizes issues like orange peel, reducing scrap rates and rework for manufacturers.
High Strength and Rigidity
With a strong balance of impact strength and flexural modulus (2550 MPa), ABS XR438 produces durable spoilers that resist cracking during assembly and can endure road debris impacts.”
Use & Applications
- Automotive Spoilers
- Other Automotive Exterior Trim Components