HDPE Formosa Plastics 8050

HDPE Formosa Plastics 8050 Resin

Material Introduction: HDPE Formosa Plastics 8050 is a high‑density polyethylene grade. Featuring high rigidity, high strength and good low‑temperature impact resistance, it is widely used for injection‑molded industrial products and daily‑use articles.

Main Applications

Industrial containers & packaging: beer crates, transport boxes, cargo bins, plastic crates, plastic water towers.

Daily‑use goods & furniture: leisure tables and chairs, sports equipment, toy components, industrial safety helmets.

Medical supplies: certain medical appliance parts.

Other applications: automotive interior parts, outdoor furniture, waste bins.

Performance Parameters

Performance Category	Test Item	Test Method / Condition	Value & Unit	Remarks & Interpretation
Basic Properties	Density	ASTM D‑1505	0.960 g/cm³	HDPE grade with high hardness and good rigidity.
	Melt Flow Rate (MFR)	ASTM D‑1238 (190°C/2.16 kg)	6.0 g/10min	Good melt flowability, suitable for injection molding process.
Mechanical Properties	Tensile Yield Strength	ASTM D‑638	310 kg/cm² (≈30.4 MPa)	High value represents good tensile‑deformation resistance and mechanical strength.
	Tensile Strength at Break	ASTM D‑638	240 kg/cm² (≈23.5 MPa)	Maximum stress the material can withstand before fracture.
	Elongation at Break	ASTM D‑638	＞1000 %	Excellent toughness and ductility; tolerates large‑scale deformation without fracture.
	Izod Notched Impact Strength	ASTM D‑256	6 kg·cm/cm	Indicator of impact‑resistance performance.
	Tensile Impact Strength	ASTM D‑1822	140 kg·cm/cm² (or 1.7 kJ/m²)	Alternative impact‑resistance index with different unit system.
	Hardness	ASTM D‑2240	70 Shore D	Provides certain surface scratch‑resistance.
Thermal Properties	Vicat Softening Temperature	ASTM D‑1525	127 °C	Indicator of material heat resistance.
	Melting Point	FPC method / ASTM D‑1525	135 °C	Complete melting temperature of the material.
	Brittleness Temperature	ASTM D‑746	＜‑70 °C	Retain toughness under ultra‑low temperature; excellent low‑temperature performance.

Injection‑Molding Process Parameters

Process Parameters	Recommended Range	Remarks & Interpretation (General HDPE characteristics)
Drying Treatment	Normally not required	Extremely low moisture absorption (<0.01%). No drying required under good storage. If package damaged or under high‑humidity environment, dry at 60‑70°C for 1‑2 hours as precaution.
Melt Processing Temperature	170‑190 °C	Specific reference value; general HDPE range 180‑230°C is also available for reference.
Mold Temperature	30‑70 °C	Mold temperature greatly affects crystallization. Higher mold temperature brings higher crystallinity and strength together with larger shrinkage.
Injection Pressure	70‑100 MPa	Relatively high melt viscosity for HDPE; sufficient injection pressure is required for full cavity filling.
Holding Pressure	40%‑60% of injection pressure	Avoid excessive holding pressure and long holding time to reduce internal stress.
Screw Speed	Medium speed	Prevent excessive shear‑induced heat accumulation.

Disclaimer: All above data is for reference only。