King MicroShield®  polymer sheets use the latest technology for protecting the product surface against stain and odor causing bacteria, algae and fungi.

Disclaimer: This product does not protect users or others against disease-causing bacteria. Always clean this product thoroughly after each use.

Where to Buy


King Antimicrobial Performance Chart Shows 99.99% Inhibition Rate


Disclaimer: The antimicrobial additive may affect finish and color

Please refer to the following products, which can be upgraded to King MicroShield®:

King StarBoard®

King Starboard® XL

King StarLite® XL

King Starboard® ST

King ColorBoard®

King ColorCore®

King Plasti-Bal®


Physical Properties
Properties Units ASTM Nominal Values
Density g/cc D1505 0.96
Tensile Strength @ Yield psi D638 >4,500
Tensile Modulus psi D638 318,000
Elongation @ Break % D638 >600
Elongation @ Yield % D638 8.8
Flexural Modulus psi D790 225,000
Flexural Stress @ 5% Strain psi D790 4,480
Compressive Properties 10% Strain psi D695 4,790
Durometer Shore D D2240 69
Tensile Impact ft.lbs./in.2 D1822 99
Izod Impact Resistance ft.lbs./in.2  D256 1.4
Brittleness Temp. ºC (ºF) D746 <-75ºC (<-105ºF)
Vicat Softening ºC (ºF)  D1525  172ºC (270ºF)
Heat Deflection Temp. 66 psi ºC (ºF)  D648  84ºC (183ºF)
Screw and Nail Withdrawal lbs D1761 755 & 55
Flammability Rating UL94 HB

All values are determined on specimens prepared according to ASTM standards.
Nominal values should not be interpreted as specifications.
King StarBoard® ST is made entirely from FDA and USDA approved material.
King StarBoard® STMS meets ASTM D4976.
King StarBoard® STMS contains no VOC’s.

Additional Information