Dow Dow™ 621I LDPE

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Dow Dow™ 621I LDPE
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Low Density (LDPE); Low Density Polyethylene (LDPE), Extrusion Grade
Material Notes:	Product Description: DOW LDPE 621I Resin is a low density polyethylene resin intended for foam and blown film applications requiring high melt strength. Specialty resin designed for high melt strength applications Provides excellent bubble stability Complies with: US FDA 21 CFR 177.1520©2.2a; Canadian HPFB No Objections. Consult the regulations for complete details. Availability: North America Additive: Antiblock: No; Processing Aid: No; Slip: No Agency Ratings: FDA 21 CFR 177.1520©2.2; Canadian HPFB No Objections Form: Pellets Processing Method: Blown Film; Foam Processing Information provided by The Dow Chemical Company
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Physical Properties	Original Value	Comments

Density	0.920 g/cc	ASTM D792
Melt Flow	2.3 g/10 min @Load 2.16 kg, Temperature 190 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Film Tensile Strength at Yield, MD	1690 psi @Thickness 0.0508 mm	ASTM D882
Film Tensile Strength at Yield, TD	1600 psi @Thickness 0.0508 mm	ASTM D882
Film Elongation at Break, MD	450 % @Thickness 0.0508 mm	ASTM D882
Film Elongation at Break, TD	620 % @Thickness 0.0508 mm	ASTM D882
2% Secant Modulus	24100 psi @Thickness 0.0508 mm	MD; ASTM D882
	30200 psi @Thickness 0.0508 mm	TD; ASTM D882
Elmendorf Tear Strength MD	320 g @Thickness 0.0508 mm	ASTM D1922
Elmendorf Tear Strength TD	190 g @Thickness 0.0508 mm	ASTM D1922
Dart Drop Test	96.0 g @Thickness 0.0508 mm	ASTM D1709A
Film Tensile Strength at Break, MD	3160 psi @Thickness 0.0508 mm	ASTM D882
Film Tensile Strength at Break, TD	2850 psi @Thickness 0.0508 mm	ASTM D882

Thermal Properties	Original Value	Comments
Melting Point	226 °F
Vicat Softening Point	198 °F	ASTM D1525

Optical Properties	Original Value	Comments
Haze	16.1 % @Thickness 0.0508 mm	ASTM D1003
Gloss	40 % @Thickness 0.0508 mm	45°; ASTM D2457

Processing Properties	Original Value	Comments
Melt Temperature	425 °F	Extrusion
Blow-up Ratio (BUR)	2.5

Descriptive Properties
Film Puncture Resistance	43 ft-lb/in3	2.0 mil
Film Toughness	1700 ft-lb/in3	MD, 2.0 mil, ASTM D882
	1709 ft-lb/in3	TD, 2.0 mil, ASTM D882

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PDOWF470 / 311163

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