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Recent geopolitical tensions in the Middle East have intensified volatility in international crude oil prices, directly impacting the global supply chain of key petrochemical feedstocks such as styrene and acrylonitrile—the core raw materials for ABS resin. In this challenging environment, Qingdao Prime Union remains committed to stable pricing and cost-sharing with customers, leveraging our reliable upstream resources and robust supply chain to ensure consistent ABS material availability.
ABS resin is widely used in automotive interiors, electronic housings, and consumer goods due to its excellent impact strength, processability, and surface gloss. Among available grades, Chi Mei PA-749SK delivers outstanding performance in key indicators such as impact strength and flexural modulus, and has gained broad acceptance in global markets.
With years of experience in the engineering plastics industry, Qingdao Prime Union—a tier-1 Chi Mei ABS distributor—understands the impact of market fluctuations on customers. We are committed to maintaining price stability and inventory readiness, sharing risks with our clients.
| Application Area | Typical Components | Key Performance Requirements | Reference Grades |
|---|---|---|---|
| Automotive Interiors | Instrument panel trim, door panels, center consoles | High impact strength (Izod ≥30 kJ/m²), high gloss, heat resistance | Chi Mei PA-749SK, LG RS650 |
| Electronics & Appliances | TV housings, printer covers, appliance panels | High flowability, dimensional stability, flame retardancy | Chi Mei PA-749SK, LG RS650 |
| Consumer Goods | Luggage, toys, office equipment | Toughness retention, scratch resistance, color stability | Chi Mei PA-749SK, LG RS650 |
In markets such as Korea’s automotive and electronics sectors, consistent material quality is essential. Below is a detailed performance comparison between Chi Mei PA-749SK and a mainstream market grade LG RS650.
Disclaimer: The comparison data below is sourced from publicly available technical documentation and laboratory test results, and is provided for reference only. Variations in testing conditions, equipment, and production batches may lead to differences in results. This article aims to objectively present material properties and does not constitute a direct substitution recommendation for any brand product.
| Property | Test Standard | Unit | Chi Mei PA-749SK | LG RS650 | Comparison Note |
|---|---|---|---|---|---|
| Physical Properties | |||||
| Specific Gravity | ASTM D792 | g/cm³ | 1.04 | 1.04 | Identical |
| Melt Flow Index (220°C/10kg) | ASTM D1238 | g/10min | 8.0 | 6.0 | PA-749SK offers better flow, ideal for complex parts |
| Melt Flow Index (200°C/5kg) | ASTM D1238 | g/10min | 0.7 | 0.7 | Identical |
| Mechanical Properties | |||||
| Tensile Strength | ASTM D638 | MPa | 40 | 38 | PA-749SK slightly higher |
| Flexural Strength | ASTM D790 | MPa | 79 | 61 | PA-749SK significantly higher |
| Flexural Modulus | ASTM D790 | MPa | 2300 | 2058 | PA-749SK offers better rigidity |
| Izod Impact Strength (23°C) | ASTM D256 | kJ/m² | 39 | 35 | PA-749SK offers better impact resistance |
| Izod Impact Strength (23°C, 6.4mm) | ASTM D256 | kJ/m² | 35 | 32.65 | PA-749SK offers better impact resistance |
| Charpy Impact Strength (23°C) | ISO 179 | kJ/m² | 37 | 35 | PA-749SK offers better impact resistance |
| Thermal Properties | |||||
| HDT (Unannealed, 1.82MPa) | ASTM D648 | °C | 87 | 87 | Identical |
| HDT (Annealed) | ASTM D648 | °C | 97 | 96 | PA-749SK slightly higher |
| Other Properties | |||||
| Rockwell Hardness (R Scale) | ASTM D785 | - | 102 | 107 | LG RS650 slightly harder |
| Flammability (3.0mm) | UL94 | - | HB | HB | Identical |
Key Conclusion: Chi Mei PA-749SK outperforms LG RS650 in impact strength, flexural strength, and flexural modulus, while maintaining comparable heat deflection temperature and flammability rating. For applications requiring higher mechanical performance and processing stability, PA-749SK is a reliable choice.
| Key Factor | Chi Mei PA-749SK Supply Assurance |
|---|---|
| Raw Material Stability | Chi Mei maintains a global raw material procurement system, ensuring stable supply of styrene, acrylonitrile, and butadiene. |
| Inventory Availability | Qingdao Prime Union maintains regular inventory of Chi Mei PA-749SK and other mainstream ABS grades for rapid response to global customer needs. |
| Price Stability | Amid market volatility triggered by the US-Iran situation, Qingdao Prime Union remains committed to stable pricing, absorbing cost pressures rather than passing them to customers. |
| Technical Documentation | Complete technical documentation available including SGS reports, UL Yellow Cards, MSDS, and processing parameters. |
| Processing Parameters | Drying temperature 70-80°C, drying time 3-4 hours, injection temperature 200-250°C. |
| Product Series | Recommended Grade | Applications | Key Advantages |
|---|---|---|---|
| High-Performance | Chi Mei PA-749SK | Automotive interiors, luggage, automotive refrigerators | Impact strength 39 kJ/m², flexural modulus 2300 MPa |
| General Purpose | Chi Mei PA-747 | Appliance housings, toys, daily necessities | Balanced mechanical properties, wide processing window |
| High Flow | Chi Mei PA-757 | Thin-wall parts, complex structures | MFI ≥25 g/10min, short cycle time |
| Flame Retardant | Chi Mei FR ABS Series | Charger housings, power adapters | UL94 V0/V2 certified, environmentally compliant |
Supply Assurance:
Tier-1 distributor with direct sourcing
Regular inventory, short lead times
Flexible delivery terms including FOB Qingdao and CIF Incheon
Complete technical documentation: TDS, MSDS, processing parameters
| Core Capability | Details |
|---|---|
| Reliable Sourcing | Tier-1 distributor for Chi Mei, Hyosung, and Hanwha; long-term partnerships with leading petrochemical companies |
| Technical Collaboration | Strategic partnerships with Kingfa, Double elephant, and others for shared compounding technology and testing resources |
| In-House Compounding | Subsidiary Primetech Plastics provides custom compounding services for ABS, PC, PA, and other materials |
| Flexible Delivery | Supports FOB Qingdao and CIF Incheon; accommodates L/C and T/T payment terms |
In an era of global supply chain uncertainty, partnering with suppliers that offer stable inventory, transparent pricing, and reliable sourcing is essential for production continuity. Qingdao Prime Union, as a tier-1 Chi Mei ABS distributor, is committed to stable pricing and provides a full range of ABS products including PA-749SK. Chi Mei PA-749SK delivers excellent performance in impact strength, flexural strength, and other key properties, making it a reliable choice for automotive, electronics, and consumer goods manufacturers worldwide.
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