GENERAL DESCRIPTIONHeat 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, this material is able to withstand higher service temperatures with less water absorption than standard polypropylene. It is laser-markable (see photo) and has superior dimensional stability.
The enhanced properties of heat-stabilized polypropylene make this material an excellent candidate for replacement of PBT, Acetal, PTFE, PPO and a number of other high-performance plastics. Recommended sterilization techniques include steam autoclaving and cold sterilization.
As a result, HS Polypropylene is an excellent material for surgical trays, caddies and instrument components.
HS PolyPro is available in white and black colored sheets only. Contact us for size availability.
( see also Standard Polypropylene Specifications )
TYPICAL PROPERTIES of HEAT-STABILIZED POLYPROPYLENE
|ASTM or UL test||Property||Standard Polypro
|D570||Water Absorption, 24 hrs (%)||0.100||<0.1|
|D638||Tensile Strength @ yield (psi)||5,200||5,100|
|D638||Tensile Modulus (psi)||240,000||-|
|D638||Tensile Elongation at Break (%)||600||12|
|D790||Flexural Strength (psi)||7,000||-|
|D790||Flexural Modulus (psi)||120,000||220,000|
|D695||Compressive Strength (psi)||6,000||-|
|D695||Compressive Modulus (psi)||-||-|
|D785||Hardness, Rockwell R||-||100|
|D256||IZOD Notched Impact (ft-lb/in)||0.7||-|
|D696||Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
|D648||Heat Deflection Temp (°F / °C)
at 66 psi
at 264 psi
210 / 99
130 / 54
186 / 86
|D3418||Melting Temperature (°F / °C)||320 / 160||325 / 163|
|-||Max Operating Temp (°F / °C)||180 / 82||212 / 100|
(x 10-4 cal/cm-sec-°C)
|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||> 1014|
|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.