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Friday, July 25, 2025
Lupolen 4261A IMBD
Units 
LyondellBasell Industries - High Density Polyethylene
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General Information
Product Description
Lupolen 4261A IMBD is a high molecular weight high density polyethylene. Typical customer applications include components for automotive fuel tank applications if outstanding biodiesel durability is requested. It is supplied in pelletized form and is stabilized with antioxidants for the injection molding process. The product features an outstanding Environmental Stress Cracking Resistance (ESCR), good chemical resistance in combination with an excellent low temperature impact resistance. Typical processes include injection moulding. Physical properties and process ability are very close to Lupolen 4261 A IM. Lupolen 4261A IMBD is not intended for use in medical and pharmaceutical applications. The product can not be used for food contact applications.
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Additive 
  • Antioxidant
Features 
  • Antioxidant
  • Fuel Resistant
  • High ESCR (Stress Crack Resist.)
  • High Impact Resistance
  
Uses 
  • Automotive Applications
  • Fuel Tanks
  • Tanks
Processing Method 
  • Injection Molding
ASTM & ISO Properties 1
Physical
Nominal Value
Unit
Test Method
Density
0.940
g/cm³
 ISO 1183
Apparent (Bulk) Density
> 0.50
g/cm³
 ISO 60
Melt Mass-Flow Rate (MFR) (190°C/21.6 kg)
15
g/10 min
 ISO 1133
FNCT - 4.0 MPa, 6.6% Dehyton PL (80°C)
5.0
hr
 ISO 16770
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
800
MPa
 ISO 527-1
Tensile Stress (Yield)
21.0
MPa
 ISO 527-2
Tensile Strain (Yield)
10
%
 ISO 527-2
Impact
Nominal Value
Unit
Test Method
Tensile Impact Strength 2 (-30°C)
140
kJ/m²
 ISO 8256/1A
Thermal
Nominal Value
Unit
Test Method
Melting Temperature
130
°C
 ISO 11357-3
Processing Information
Injection
Nominal Value
Unit
 
Processing (Melt) Temp
> 230
°C
  
Notes
1Typical properties: these are not to be construed as specifications.
2Notched
 
Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and other governmental enactments. Seller assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.