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Product Testing

Knife Shear Test: AS5039-2008

Knife Shear TestThis Australian Standard test simulates a knife attack on Invisi-Gard as a burglar tries to cut through the screen. The test aims to recreate the effect of someone attacking your doors with a Stanley knife or similar.

During this test, a specially designed machine draws a knife blade along a line down a panel three times. After each draw, the used blade is replaced with a new one. The sample fails if a continuous cut of 15cm or greater is achieved after the third draw. Invisi-Gard passes this test in both the warp and fill directions, unlike many imported meshes which only pass in one direction.

Invisi-Gard is able to pass this test thanks to the strength of the 316 Marine Grade Stainless Steel Mesh.