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	Metric	English	Comments

Density	0.920 g/cc	0.0332 lb/in³	ASTM D792
Melt Flow	2.3 g/10 min @Load 2.16 kg, Temperature 190 °C	2.3 g/10 min @Load 4.76 lb, Temperature 374 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Film Tensile Strength at Yield, MD	11.7 MPa @Thickness 0.0508 mm	1690 psi @Thickness 0.00200 in	ASTM D882
Film Tensile Strength at Yield, TD	11.0 MPa @Thickness 0.0508 mm	1600 psi @Thickness 0.00200 in	ASTM D882
Film Elongation at Break, MD	450 % @Thickness 0.0508 mm	450 % @Thickness 0.00200 in	ASTM D882
Film Elongation at Break, TD	620 % @Thickness 0.0508 mm	620 % @Thickness 0.00200 in	ASTM D882
2% Secant Modulus	0.166 GPa @Thickness 0.0508 mm	24.1 ksi @Thickness 0.00200 in	MD; ASTM D882
	0.208 GPa @Thickness 0.0508 mm	30.2 ksi @Thickness 0.00200 in	TD; ASTM D882
Elmendorf Tear Strength MD	320 g @Thickness 0.0508 mm	320 g @Thickness 0.00200 in	ASTM D1922
Elmendorf Tear Strength TD	190 g @Thickness 0.0508 mm	190 g @Thickness 0.00200 in	ASTM D1922
Dart Drop Test	96.0 g @Thickness 0.0508 mm	0.212 lb @Thickness 0.00200 in	ASTM D1709A
Film Tensile Strength at Break, MD	21.8 MPa @Thickness 0.0508 mm	3160 psi @Thickness 0.00200 in	ASTM D882
Film Tensile Strength at Break, TD	19.7 MPa @Thickness 0.0508 mm	2850 psi @Thickness 0.00200 in	ASTM D882

Thermal Properties	Metric	English	Comments
Melting Point	108 °C	226 °F
Vicat Softening Point	92.2 °C	198 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Haze	16.1 % @Thickness 0.0508 mm	16.1 % @Thickness 0.00200 in	ASTM D1003
Gloss	40 % @Thickness 0.0508 mm	40 % @Thickness 0.00200 in	45°; ASTM D2457

Processing Properties	Metric	English	Comments
Melt Temperature	218 °C	425 °F	Extrusion
Blow-up Ratio (BUR)	2.5	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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