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Proteus ® LSG HS PP
Life Science Grade Heat Stabilized Polypropylene Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:


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click to resize photo Proteus ® LSG HS PP (heat-stabilized Polypropylene) sheet provides all of the outstanding properties found in standard polypropylene, but has been subjected to a special heat-stabilizing process. As a result, Proteus LSG is able to withstand higher service temperatures with less water absorption than standard polypropylene.

Proteus ® LSG HS PP exhibits a heat deflection temperature that allows the material to be used in repeated steam and autoclave sterilization cycles. It is highly resistant to cleaning agents, disinfectants and various solvents. Proteus LSG HS PP is FDA, USP Class VI, and ISO 10993 compliant Therefore, this material is an excellent material for surgical trays, caddies and instrument components.

The production process includes a special heat-treatment phase that allows for the higher heat deflection temperature and, thus, improved machinability and dimensional stability. Under the label of Quadrant’s Life Science Grades (LSG), Proteus ® LSG HS PP is tested and validated for biocompatibility per ISO10993-5 (on the stock shapes, closing the gap resin manufacturers leave). This offers the designer increased safety, approval facilitation, as well as reduced cost and time to market.

Proteus ® LSG HS PP is available in white and black colored sheets only. Contact us for size availability.

( see also Standard Polypropylene Specifications )

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ASTM or UL test Property Standard Polypro
Proteus® LSG HS PP
D792 Density (lb/in³)
D570 Water Absorption, 24 hrs (%) 0.100 <0.01
D638 Tensile Strength @ yield (psi) 5,200 4,900
D638 Tensile Modulus (psi) 240,000 117,000
D638 Tensile Elongation at Yield (%) 23 8
D790 Flexural Strength (psi) 7,000 7,000
D790 Flexural Modulus (psi) 120,000 182,000
D695 Compressive Strength (psi) 6,000 3,500
D695 Compressive Modulus (psi) - 214,000
D785 Hardness, Rockwell R 80 113
D256 IZOD Notched Impact (ft-lb/in) 0.7 0.5
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
8.1 6.0
D648 Heat Deflection Temp (°F / °C)
at 66 psi
at 264 psi

210 / 99
130 / 54

>300 / >148
- / -
D3418 Melting Temperature (°F / °C) 320 / 160 327 / 164
- Max Operating Temp (°F / °C) 180 / 82 180 / 82
C177 Thermal Conductivity
(x 10-4 cal/cm-sec-°C)


UL94 Flammability Rating HB HB
D149 Dielectric Strength (V/mil) short time, 1/8" thick 500-660 -
D150 Dielectric Constant at 1 kHz 2.25 -
D150 Dissipation Factor at 1 kHz 0.0005-0.0018 -
D257 Volume Resistivity (ohm-cm) at 50% RH > 1014 > 1013
D495 Arc Resistance (sec) 160 -
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
PROTEUS and LSG are registered trademarks of Quadrant EPP USA, Inc.

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:

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