Purpose and Application

The adhesion of the coating on the substrate is not only a physical indicator that describes the bonding performance between the coating and the substrate, but also an important anti-corrosion performance indicator. Because areas with poor adhesion are prone to corrosion, standard grid tests provide very direct adhesion Performance testing methods.

The testing principle of Erichsen's 295 cross grid knife from Germany

The basic principle is to use a series of cutting edges to cut the coating at right angles, and the obtained squares can be evaluated by visually inspecting the coating at the site of substrate rupture. It can also be compared with the grid pattern in the standard.

Design and Function

Erichsen295The grid cutter is a manually operated instrument with a discounted price that can meet all grid testing standards. It consists of a plastic handle and a blade mounted on it, which can be adjusted to the most comfortable position for the operator to operate. Can provide different types of cutting heads, one that meetsENISO 2409 standard tape is available for selection.

Scope of Supply

All of them295#The grid cutting instruments are fully supplied, including blade heads installed on plastic handles. Installed in a sturdy plastic carrying case, it also includes a nylon brush and a2.5A magnifying glass. about295/IIIA single blade blade and a folding ruler are also provided. The instrument comes with the manufacturer's certificate at the same timeM.

1) After 1994, European standardsEN ISO 2409Replaced national standardsDIN 53151，BS 3900：E6，NFT

30-38，NEN 5337andSIS 184172.

2) After grid testing, deep drawing experiments can also be conducted（EN ISO 1520）. The deep drawing experiment can be completed using the following instruments:

ERICHSEN Cup Convex Tester, Model200、202、202Cor204

accord withASTMD 3359The impact testing device304 ECCA

3) For soft substrates.

4) For hard substrates.