Proteus™ O & P Natural Homopolymer PP shapes maintain the durability required by the orthotics and prosthetics industry, while also exhibiting top thermoforming performance capabilities. In addition to these key characteristics, Proteus™ O & P Natural Homopolymer PP components do not absorb moisture and are also chemical and corrosion resistant. This grade is prevalent in the medical and thermoforming industries, primarily in orthotic and prosthetic device applications.
PROPERTIES
Thermoforming performance
Rigid form of polypropylene used where high stiffness is required
Lot-to-lot consistency and formability
Chemical and corrosion resistant
No moisture absorption
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
Continuous allowable service temperature in air
90
Mechanical Properties
Property
Value
Tensile Strength (MPa)
Tensile Modulus of Elasticity (MPa)
Compressive stress at 1% nominal strain (MPa)
Compressive stress at 2% nominal strain (MPa)
Compressive stress at 5% nominal strain (MPa)
Flexural Strength (MPa)
Charpy Impact Notched (kJ/m²)
Chemical Properties
Property
Value
Hot Water / Steam
Acceptable
Acids, Weak
Acceptable
Acids, Strong (pH 1-3)
Limited
Alkalies, Weak
Acceptable
Alkalies, Strong (pH 11-14)
Acceptable
Hydrocarbons - Aromatic
Acceptable
Hydrocarbons - Aliphatic
Acceptable
Ketones, Esters
Acceptable
Chlorinated Solvents
Acceptable
Alcohols
Acceptable
Inorganic Salt Solutions
Acceptable
Electrical Properties
Property
Value
Dielectric Strength (kV/mm)
Certification Properties
Property
Value
FDA
Compliant
European Food Approval
Not compliant
NSF
Not compliant
3A-SSI
Not compliant
Canada AG
USDA
Not compliant
Flammability (UL Rating)
HB
Medical use
FOOD - FDA
Miscellaneous Properties
Property
Value
Base Material
PP-H
Brand Family
Colors
White
Density (g/cm3)
Water Absorption after 24 hrs immersion in water (%)
