Braskem GM7746CA HDPE Blow Molding Polyethylene

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Braskem GM7746CA HDPE Blow Molding Polyethylene (discontinued **)
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Blow Molding Grade
Material Notes:	GM7746CA is a high-density polyethylene specially developed for the manufacturing of blow molding fuel tanks. It has high molar mass and excellent mechanical properties. It also shows excellent tenacity, high resistance to stress cracking, and outstanding impact resistance. The resin contains additives to protect it against ultraviolet radiation action. Its applications include mono and multilayer fuel tanks for trucks and sheet extrusion for pickup rear protectors.
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Physical Properties	Metric	English	Comments

Density	0.944 g/cc	0.0341 lb/in³	ASTM-D792
ESCR 100% Igepal®	>= 1000 hour @Thickness 2.00 mm, Temperature 50.0 °C	>= 1000 hour @Thickness 0.0787 in, Temperature 122 °F	0.3 mm notched-plaques; ASTM-D1693
Melt Flow	4.5 g/10 min @Load 21.6 kg, Temperature 190 °C	4.5 g/10 min @Load 47.6 lb, Temperature 374 °F	ASTM-D1238

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	62	62	ASTM-D2240
Tensile Strength at Break	42.0 MPa	6090 psi	ASTM-D638
Tensile Strength, Yield	23.0 MPa	3340 psi	ASTM-D638
Elongation at Break	880 %	880 %	ASTM-D638
Elongation at Yield	13 %	13 %	ASTM-D638
Flexural Modulus, 1% Secant	890 MPa	129000 psi	ASTM-D790
Izod Impact, Notched	7.60 J/cm	14.2 ft-lb/in	ASTM-D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	70.0 °C	158 °F	ASTM-D648
Vicat Softening Point	126 °C @Load 1.02 kg	259 °F @Load 2.25 lb	ASTM-D1525

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PBRAS807 / 106653

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