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Polystone ® P MG
Medical 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: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

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GENERAL DESCRIPTION
click to resize photo Polystone ® P MG (Medical Grade) is a compression molded polypropylene sheet product that is manufactured by a heat-stabilization process. The resulting material is easily machined and is specifically designed for surgical trays and caddies to due its excellent dimensional stability, resistance to seteam autoclaving, and low moisture absorption.

In addition, Polystone P MG heat-stabilizied polypropylene can be laser marked and is USP Class VI and FDA compliant.

Polystone ® P MG is available in white and black colored sheets only, from .5" to 3" (12.7mm to 76.2mm) in thickness and in sheet sizes of 24" x 48" (610mm x 1220mm), 40" x 48" (1 meter x 1220mm) and 48" x 120" (1220mm x 3 meter). Contact us for size availability.



( see also Standard Polypropylene Specifications )

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TYPICAL PROPERTIES of POLYSTONE® P MG HS Polypropylene

ASTM or UL test Property Standard Polypro
(copolymer)
Proteus® LSG HS PP
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.033
0.90
0.030
0.91
D570 Water Absorption, 24 hrs (%) 0.100 <0.01
MECHANICAL
D638 Tensile Strength @ yield (psi) 5,200 4,900
D638 Tensile Modulus (psi) 240,000 -
D638 Tensile Elongation at Yield (%) 23 13
D790 Flexural Strength (psi) 7,000 -
D790 Flexural Modulus (psi) 120,000 200,000
D695 Compressive Strength (psi) 6,000 -
D695 Compressive Modulus (psi) - -
D785 Hardness, Rockwell R 80 -
D256 IZOD Notched Impact (ft-lb/in) 0.7 1.3
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
8.1 -
D648 Heat Deflection Temp (°F / °C)
at 66 psi
at 264 psi

210 / 99
130 / 54

- / -
- / -
D3418 Melting Temperature (°F / °C) 320 / 160 327 / 164
- Max Operating Temp (°F / °C) 180 / 82 - / -
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

2.8
9.6

-
-
UL94 Flammability Rating HB -
ELECTRICAL
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.
POLYSTONE is a registered trademark of Roechling Plastics.

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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: info@boedeker.com

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