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Unithene LH523

High Density Polyethylene

Supplied by USI Corporation

The technical datasheet with complete property values for Unithene LH523 is available to members of the Prospector Plastics Database.
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Product Description
UNITHENE LH523 is a high density polyethylene especially developed for injection molding of PET bottle base-cup. In addition, UNITHENE LH523 can be applied to powder coating after grinding. High melt index of UNITHENE LH523 makes it exhibit excellent processability. Also, UNITHENE LH523 possesses superb impact strength and resistance to stress crack owing to its lower density. A combination of above characteristics and good stiffness, high hardness, high surface gloss, less deformation provides UNITHENE LH523 as an outstanding resin for the application of PET bottle base-cup. UNITHENE LH523 can be easily pigmented to any color by either dry blending or melt blending of the pigment into the resin. If it is necessary, the printability of items molded from UNITHENE LH523 can be accomplished after a suitable flame, chemical or electronic surface treatment. UNITHENE LH523 meets the requirement of the U.S. Food and Drug Administration regulation. It can be safely used for food applications.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
Features 
  • Food Contact Acceptable
  • Good Processability
  • Good Stiffness
  • Good Surface Finish
  • High Density
  • High ESCR (Stress Crack Resist.)
  • High Hardness
  • High Impact Resistance
Uses 
  • Bottles
  • Cups
  
Forms 
  • Pellets
Processing Method 
  • Filament Extrusion
  • Injection Molding
  
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
 ASTM D1505
Melt Mass-Flow Rate (MFR)
g/10 min
 ASTM D1238
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus - 1% Secant (Compression Molded)
psi
 ASTM D638
Tensile Strength
     ASTM D638
Yield, Injection Molded
psi
  
Break, Injection Molded
psi
  
Tensile Elongation (Break, Injection Molded)
%
 ASTM D638
Apparent Bending Modulus
psi
 ASTM D747
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact
ft·lb/in
 ASTM D256
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness (Shore D)
 
 ASTM D2240
Thermal
Nominal Value
Unit
Test Method
Brittleness Temperature
°F
 ASTM D746
Vicat Softening Temperature
°F
 ASTM D1525
Additional Information
Melting Point, ASTM D2117: 128°C
Torsional Stiffness, ASTM D1043: 9200 kg/cm²
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Unithene LH523, Unithene , UnitheneLH523, LH 523, LH523, Polyethylene, High Density, Polyethylene High Density, HDPE, Polyethylene, PE, USI Corporation, PolyethyleneHighDensity, 523LH
Features
Features may also be described by the following terms: High Impact Resistance, High Hardness, Hard, High Environmental Stress Cracking Resistance, High ESCR, Stress Cracking Resistant, High Density, High Specific Gravity, Good Surface Finish, Good Stiffness, Good Processability, Easy Processing.
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.