Yanchang 7260| Injection Molding HDPE, High Rigidity & High Gloss for Turnover Boxes
Product Overview
Yanchang 7260 is a domestic injection molding grade HDPE produced by Yanchang Petroleum Yan'an Energy & Chemical Company. It is manufactured via advanced ACP low-pressure slurry process.This resin features high rigidity, good melt fluidity and balanced impact resistance at both room temperature and low temperature. Finished injection parts have smooth high-gloss surface and meet food contact safety standards.
With stable domestic stock supply and prominent cost advantages, it is a perfect cost-effective substitute for imported HDPE materials, widely used for mass production of injection containers and logistics turnover products.
1. Basic Product Specifications
All listed data are typical values for reference only, tested on standard 4mm injection test specimens. This product adopts 100% virgin HDPE resin with uniform milky white pellets. It contains no impurities, black spots or irregular particles, ensuring stable and consistent quality across every batch. It is packed with original 25kg factory packaging. Official batch COA is provided to support full quality traceability.
Density: 0.957 g/cm³ (ISO 1183)
Melt Flow Rate (190°C/2.16 kg): 8.0 g/10min (ISO 1133)
Tensile Yield Strength: 30 MPa
Flexural Modulus: 1450 MPa
Charpy Notched Impact Strength (Room Temperature): 4.0 kJ/m²
Charpy Notched Impact Strength (-30°C): 4.5 kJ/m²
Special Performance Note: Compared with conventional general-purpose HDPE, this grade has far less toughness attenuation under low-temperature environments. Though its low-temperature impact index is slightly lower than room-temperature value, it still maintains reliable anti-cracking performance under subzero conditions, well suited for outdoor plastic products used in cold regions.
2. Core Product Advantages
High rigidity and high gloss for premium part appearance
Produced by mature slurry process, this HDPE has outstanding rigidity and excellent surface gloss. Finished injection products feature smooth surface with few flow marks and weld lines. No secondary polishing process is required, which perfectly meets production requirements of high-appearance plastic parts.
Balanced wide-temperature toughness, strong anti-cracking performance
It maintains stable impact resistance under both normal and low temperature conditions, effectively avoiding cold brittle cracking. Plastic parts are not easy to crack during repeated turnover and stacking. It greatly reduces product scrap rate and fits long-term cyclic heavy-duty use scenarios.
Excellent melt fluidity adapting to high-speed injection production
With good melt flow performance, it realizes fast and uniform mold filling for large-size and thin-wall injection parts. It is compatible with conventional and high-speed injection molding machines. It ensures stable processing operation and improves overall production yield.
Stable domestic supply with great comprehensive chemical resistance
As a star domestic HDPE injection grade, it gets rid of long delivery cycle and supply instability risks of imported materials. The resin is low-odor and food-contact compliant. It also has excellent chemical corrosion resistance and stable long-term service performance for diversified injection molding applications.
3. Main Application Fields
Food Turnover Products: Beer turnover boxes, beverage turnover boxes, food storage boxes and fresh logistics turnover baskets.
Industrial Heavy-duty Products: Logistics plastic pallets, industrial turnover baskets, warehouse spare parts boxes and heavy-duty storage containers.
Daily and Protective Products: Safety helmets, plastic tables and chairs, household storage boxes and small daily injection containers.
Other Applications: Common small injection plastic parts, modified plastic base materials. It can be blended with other PE materials to flexibly adjust product rigidity and toughness.
4. Processing & Storage Guidelines
Processing Parameters
Barrel Temperature: 190–230°C
Mold Temperature: 40–60°C
Injection Pressure: 60–110 MPa
Drying Requirement: Normally stored pellets need no drying treatment. Dry damp pellets at 60–70°C for 1 hour and cool to room temperature before feeding.
Storage Requirements
Store resin pellets in cool, dry and ventilated warehouses. Keep away from open fire, rainwater, direct sunlight and odorous goods to prevent moisture absorption and odor cross-contamination. Do not stack pallets higher than 5 layers. The shelf life is 2 years under standard storage conditions.
5. Quality Assurance & Supply Service
We provide 100% original virgin Yanchang Petroleum 7260 HDPE. Official batch COA is supplied for full physical indicator inspection. We keep sufficient spot inventory all year round. We support free sample testing, small trial orders and full-truck bulk shipments. Professional technical support is available to solve production problems for all injection molding manufacturers.
6. Frequently Asked Questions
Q1: Will this high-flow HDPE cause shrinkage marks and sink marks on large injection parts?
A: Proper adjustment of holding pressure and cooling time can greatly suppress such defects. This resin features stable shrinkage rate, and matched standard processing parameters can effectively control product shrinkage and surface sink marks.
Q2: How about its low-temperature impact performance? Is it suitable for outdoor turnover boxes used in northern cold areas?
A: It has excellent low-temperature toughness and can resist brittle fracture under subzero environments. Its low-temperature impact strength is higher than room-temperature performance. It is very suitable for outdoor cold chain logistics turnover boxes and warehouse containers used in northern regions.
Q3: Can Yanchang 7260 be used for direct injection molding without blending?
A: It can be used independently with stable injection processing performance. A small proportion of LDPE can be blended optionally to further improve finished product toughness.
Q4: Can this resin be directly applied to food-contact turnover boxes?
A: It complies with global food contact standards and can be directly used for food-grade turnover baskets and storage boxes. It is recommended to check local compliance specifications according to final end-use scenarios.
Q5: Will melt flow and rigidity decrease obviously after long-term storage?
A: All core performance indicators remain stable within the shelf life under standard storage conditions. No obvious attenuation occurs on melt fluidity, rigidity and impact strength, with excellent batch-to-batch consistency.
7. Product Summary
Yanchang 7260 (HSGC7260) is a high-flow injection molding HDPE resin with high rigidity and high surface gloss. It owns unique excellent low-temperature toughness, full food contact compliance and stable mass production performance.Backed by reliable domestic supply chain, it can fully replace imported HDPE materials for food turnover boxes, industrial heavy-duty containers and daily plastic products. It helps injection manufacturers cut raw material costs and improve overall production efficiency.
Please contact us for complete technical datasheets, compliance certificates, official COA reports, free samples and real-time bulk quotations.
