Blown Polypropylene (PP) Film Properties

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(Available Grades: BFI 3272, BFI 4170 and BFI 257)

FILM PROPERTIES LISTED ARE FOR BLOWN PROCESS ONLY.

BFI 3272 High Impact Homopolymer Polypropylene Blown Film Properties:(3)

(Complies with all application FDA regulations for food contact application.)

Properties	Units	ASTM Method	Typical Values⁽¹⁾
Resin Properties
Melt Index	g/10 min	D 1238 230⁰C/2160g	2.2
Density	g/cc	D 1505	0.905
Melting Point,	⁰F	DSC	325
FILM PROPERTIES ^{(1), (2)}
Ultimate Tensile
MD	psi	D 882	22,000
TD	psi	D 882	35,000
Tensile Modulus
MD	psi	D 882	350,000
TD	psi	D 882	600,000
Elongation@ Break
MD	%	D882	150
TD	%	D882	60
Haze	%	D 1003	1.0
WVTR	g/100sq.in/24hrs/mil @100⁰F, 90% RH	F-1249-90	0.30

BFI 4170 Impact Copolymer Polypropylene Film Properties:

Properties	Units	ASTM Method	Typical Values⁽¹⁾
Resin Properties
Melt Index	g/10 min	D 1238 230 ⁰C/2160g	0.75
Density	g/cc	D 1505	0.905
Melting Point,	⁰C	DSC	(160-165)
FILM PROPERTIES^{(1), (2)}
Tensile @Yield
MD	psi	D 882	3800
TD	psi	D 882	3600
Tensile @Break
MD	psi	D 882	8500
TD	psi	D 882	5500
Elongation@ Break
MD	%	D882	750
TD	%	D882	770
2% Secant Modulus
MD	psi	D882	100,000
TD	psi	D882	87,000
Dart Impact (Method A)	gr	D-1709	350
WVTR	g/100sq.in/24hrs/mil @100⁰F, 100% RH	F-1249	0.45
OTR	cc/100sq.in/24hrs/mil @73⁰F, 0% RH	D-3985	135
Elmendorf Tear Strength	gr, MD (TD)	D-1922	55(300)

BFI 257 Clarified Random Copolymer Polypropylene Film Properties:

(Applications: Thermoforming, Containers, Closures, Caps etc.)

Properties	Units	ASTM Method	Typical Values⁽¹⁾
Resin Properties
Melt Index	g/10 min	D 1238 230⁰C/2160g	2.0
Density	g/cc	D 1505	0.90
FILM PROPERTIES ^{(1), (2)}
Tensile strength (Yield) (2"/min)
Tensile strength (Yield) (2"/min)	psi	D 638	4300
Tensile Elongation (Yield)	%	D 638	14%
Flexural Modulus - 1% Secant (0.039 in/min)	psi	D 790A	160,000
Notched Izod Impact (73⁰F Method A)	ft.lb/In	D 256A	7.0
Deformation Temperature Under Load (66 psi)	⁰F	D648	165
Haze	%	D 1003	9

NOTES:
(1) Data developed under laboratory conditions and are not to be used as specifications, maxima or minima.

(2) Monolayer Blown film conditions: Screw size: 50 mm, Die gap: 0.9 mm, Melt temperature 475oF (245oC) Die diameter: 118mm, Blow Up Ratio:2.5
(3) The information provided is solely for your consideration and verification and not to be used as a warranty for which BFI assumes no legal responsibility. Buyers and users must determine the results to be obtained for the application of the information herein and the safety and the suitability of our products for their own purpose, and assume all risk, responsibility and liability for all injuries, losses or damage arising from the application of the information herein or use of our products.