All ClearShield products have this level of resistance

Test Method / Performance Requirement:

AS 4483 that forms part of AS5041.

The Knife Shear Test as specified in AS4483 involves a Stanley trimming knife to be dragged along the screen material 3 times along the same line of pass without leaving a penetration longer than 150mm.

Product Description:

ClearShield Stainless Steel Security Screen is used in all ClearShield products.


The ClearShield screen material withstood over 60 passes of the knife. This result equates to the screen withstanding over 20 cycles of the KNIFE SHEAR TEST as specified in AS4483.