Formosa Plastics Formolene® 4181R Injection Molding Polypropylene

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Formosa Plastics Formolene® 4181R Injection Molding Polypropylene (discontinued **)
Categories:	Polymer; Thermoplastic; Polypropylene (PP); Polypropylene, Molded
Material Notes:	Homopolymer with Antistat, ESCR Additives Applications: For general purpose injection molding applications such as closures. Formolene 4181R is a low viscosity, highly isotactic polypropylene homopolymer designed for various injection molded applications such as closures. It contains a unique combination of stabilizers which give it excellent processability with good stiffness, environmental stress crack resistance, heat performance and minimal odor and taste. Formolene 4181R contains antistat but no nucleation. Meets all requirements of the U.S. Food and Drug Administration as specified in 21 CFR 177.1520, covering safe use of polyolefin articles intended for direct food contact. Specimens were injection molded according to the conditions specified in ASTM D4101. Information provided by Formosa Plastics Corporation, USA.
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Physical Properties	Original Value	Comments

Density	0.905 g/cc	ASTM D1505
Melt Flow	20 g/10 min @Temperature 230 °C	I₂; ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	111	ASTM D785
Tensile Strength, Yield	5200 psi	2" (50mm) per min.; ASTM D638
Elongation at Yield	8.0 %	2" (50mm) per min.; ASTM D638
Flexural Modulus, 1% Secant	215000 psi	1.3 mm/min; ASTM D790
Izod Impact, Notched	0.400 ft-lb/in	ASTM D256
	0.90 ft-lb/in	ASTM D256

Compliance Properties	Original Value	Comments
FDA	Yes	See notes for details.

**
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