Polypropylene Plastic Info

Characteristics of PP - Polypropylene Plastic Containers
Clarity	Moderate Hazy
Moisture Barrier	Good to Excellent
Oxygen Barrier	Poor
Acid Resistance	Fair to Good
Grease & Oil Resistance	Good
Maximum Utilization Temperature	275°F
Minimum Utilization Temperature	32°F
Stiffness	Moderate to High
Impact Resistant	Poor to Good
Heat Resistance	Good
Cold Resistance	Poor to Fair
Sunlight Resistance	Fair
Specific Gravity	0.90

Other Characteristics of PP:
PP is a polymer prepared catalytically from propylene with an isostatic replacement of a hydrogen atom by a methyl group on alternate carbon atoms in the main chain. The material surface of PP (Polypropylene) is soft, almost wax-like and tends to scratch easily. PP Shares many of the same characteristics as HDPE though PP is a stiffer material with a higher melting point. PP is manufactured in the same ways as all other thermal plastics. The presence of the methyl group makes PP slightly more susceptible to attacks by oxidizing agents than HDPE.

Chemical Resistance:

Acids – Dilute	Excellent
Acids – Concentrated	Excellent
Alcohols	Excellent
Aldehydes	Good
Bases	Excellent
Esters	Good
Ethers	Low
Hydrocarbons, Aliphatic	Good
Hydrocarbons, Aromatics	Low
Hydrocarbons, Halogenated	Low
Ketones	Good
Oils, Minerals	Excellent
Oil, Vegetable	Good

PP for Laboratories:
PP is a good choice for product packaging because it is a highly durable material in both container and closure forms, and is a good barrier against moisture, oil, and alcohol. PP is resistant to many chemicals. PP can be sterilized by autoclaving, gas and chemical disinfectant.

Other uses of PP:
PP is often used to produce many products including ketchup bottles, yogurt containers, medicine bottles, and syrup bottles.

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Polypropylene Plastic Info

Characteristics of PP - Polypropylene Plastic Containers