Daqing DNDA-8320 LLDPE | High Flow Injection Molding Resin for Transparent Thin-Wall Products
Daqing Petrochemical DNDA-8320 is high-flow LLDPE for injection molding. It works for thin-wall parts, transparent goods and daily plastic products. It flows well and delivers clear finished items. It raises production efficiency and cuts defective parts. It fits most regular injection molding machines.
1. Basic Product Specifications
All listed data are typical values, and they are only for reference.
This virgin resin has even milky white pellets. It contains no impurities or black spots. It is packed in 25 kg bags as standard. We supply COA for every batch to ensure full quality traceability.
Density: 0.926 g/cm³ (typical range: 0.918–0.922 g/cm³)
Melt Flow Rate (MFR): 20 g/10min (190°C/2.16 kg, ISO 1133, typical range: 17–23 g/10min) (ASTM D1238)
Tensile Breaking Stress: 20 MPa
Nominal Strain at Break: 1027 %
Discolored pellets: ≤6 pieces per kilogram
2. Core Product Advantages
High melt flow improves thin-wall injection molding efficiency
This resin has an MFR of 20 g/10min. It enables fast melt filling during injection processing. It flows easily into thin and complex mold cavities. It prevents common molding defects including short shots and weld lines. It lowers product defect rates and improves overall production efficiency.
High transparency guarantees good product appearance
The resin has even molecular structure. It makes finished products have low haze and high light transmittance. Besides, it keeps stable low-temperature toughness. So it is very suitable for daily plastic products requiring high transparency.
Balanced mechanical properties extend product service life
This resin has balanced rigidity, toughness and impact resistance. It will not become brittle under low temperature. It also has good resistance to environmental stress cracking. These advantages make final plastic products more durable.
Stable thermal stability supports long continuous production
It has a wide processing temperature range. The resin will not degrade or turn yellow during long-time continuous injection molding. It reduces extra downtime for equipment cleaning, and it ensures smooth mass production.
3. Main Application Fields
Transparent Daily Products
Transparent storage boxes, drinking cups, pencil boxes, cosmetic boxes, plastic toy parts
Thin-Wall Injection Molded Parts
Thin-wall container covers, disposable tableware, thin packaging inner liners, small electronic product shells
Carrier Material for Masterbatch
Base raw material for color masterbatch and functional additive masterbatch
Other General Uses
Ordinary injection plastic parts, household plastic products
We can provide customized resin grades with anti-static function or weather resistance if customers have extra demands.
4. Processing Guidelines
Recommended Processing Parameters
Injection temperature: 180–210°C
Mold temperature: 20–40°C
Injection pressure: 60–100 MPa
Production Operation Suggestions
This resin hardly absorbs moisture, so drying treatment is not required in normal conditions. If the resin gets wet due to improper storage, dry it at 60–80°C for 1 to 2 hours before use.
Adjust actual processing parameters according to plastic part thickness and specific injection molding equipment.
Carry out small-batch trial production before mixing this resin with other polyolefin materials, and confirm the stability of production formula and processing conditions.
Store the resin in dry, cool and ventilated warehouses. Keep it away from rain, direct sunlight and open fire. Follow the first-in, first-out storage rule.
5. Frequently Asked Questions
Q: Is DNDA-8320 applicable for food contact products?
A: This virgin LLDPE resin meets the standard GB 4806.6-2016 for food contact plastic materials. We can provide supporting test reports to meet FDA and EU food contact standards for export orders. If the products contact high-temperature food or oily food, please complete migration tests for finished products, and keep batch COA documents for quality traceability.
Q: Can this resin be blended with LDPE and HDPE?
A: Blending use is allowed. Mixing with other polyolefin materials can adjust the hardness, transparency and toughness of finished products. Please finish small-batch tests before formal mass production.
Q: What are the packaging standard and minimum order quantity?
A: Each bag contains 25 kilograms of resin. One bag is acceptable as the minimum order quantity. We provide sample supply, less-than-truckload delivery and full truckload delivery to meet different customer procurement needs.
Q: Will this resin turn yellow during long-time continuous processing?
A: It owns good thermal stability, so it will not degrade or discolor under normal processing conditions. For long-time uninterrupted production, you can use injection machines with low material retention, or add a small amount of antioxidant to keep good appearance of finished products.
6. Product Summary
Daqing Petrochemical DNDA-8320 is a high-flow and high-clarity LLDPE injection molding resin. It is easy to process, and it is widely used for transparent daily plastic products and thin-wall injection parts. We provide stable long-term supply and consistent batch quality. We support sample testing, bulk LTL delivery and full container export services.
