Braskem America BC818

Braskem America BC818 is a versatile low density polyethylene suitable for various applications. When used in the coating process, it exhibits excellent optical properties, low neck-in, and good film stability, with strong adhesion on porous substrates. In the injection molding process, BC818 provides outstanding flexibility, making it a reliable choice for diverse manufacturing needs.

For more information regarding REACH, please visit Braskem's REACH site

Polymer Name: Low Density Polyethylene (LDPE)

Processing Methods: Extrusion, Extrusion Coating, Injection Molding

Melt Flow Index: 8.3 - 8.3 g/10 min

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Identification & Functionality

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Physical Form
Control Properties
ValueUnitsTest Method / Conditions
Melt Flow Rate (at 190°C, 2.16kg)8.3g/10 minASTM D1238
Density0.918g/cm³ASTM D 792
Typical Properties - Blown Film Properties
ValueUnitsTest Method / Conditions
Tensile Strength (at Break, MD)25MPaASTM D 882
Tensile Strength (at Break, TD)20MPaASTM D 882
Elongation (at Break, MD)380%ASTM D 882
Elongation (at Break, TD)870%ASTM D 882
Flexural Modulus (Secant 1%, MD)70MPaASTM D 882
Elmendorf Tear Strength (TD)56gFASTM D 1922
Dart Drop Impact Strength70gFASTM D 1709/A
Haze8%ASTM D 1003
Gloss (Angle 60°)76%ASTM D 2457
Typical Properties - Plaque Properties
ValueUnitsTest Method / Conditions
Tensile Strength (at Yield, 2mm Plaque Thickness)9MPaASTM D638
Tensile Strength (at Break, 2mm Plaque Thickness)12MPaASTM D638
Flexural Modulus (at 1% Secant, 3mm Plaque Thickness)200MPaASTM D790
Shore D Hardness (at 6mm Plaque Thickness)49-ASTM D2240
Izod Impact Strength (at 3mm Plaque Thickness)No breakJ/mASTM D256
Deflection Temperature Under Load (at 0.455 MPa, 3mm Plaque Thickness)86°CASTM D648
Vicat Softening Temperature (at 10N, 3mm Plaque Thickness)41°CASTM D1525
  • Typical Properties - Plaque Properties
    • Test specimens from compression-molded plaque according to ASTM D4703.
  • Typical Properties - Blown Film Properties
    • (a) LDPE: 25 μm thick film, obtained from a 75 mm extruder, with blow-upo of 2:1, die gap 1 mm, and Die rate 1,75 kg/
    • (b) ND: Not Determined
    • (c) 25 μm thick film, temperature: 38°C, 100% RH

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