CROSS HATCH CUTTER
Cross Hatch Cutter is an effective tool used for adhesion tests which provide an instant and simple assessment of the quality of bond (resistance of paint coatings) to the substrate by means of series of cuts through the coating and is recognised by International Standards. The cross hatch patter should be clean if the sealer is well adhered. If the cross hatch is rough at the edges this means the sealer is compromised and is not adhered to the substrate.See more.
The tool has multiple blades which allows you to make adhesion resistance assessments on coatings. The tools once drawn correctly will make a lattice cut across the coatings and penetrate through to the substrate. In order to choose the right Cutter you will need to know the coating thickness. You can test multiple coatings for the assessment of the resistance to separation on individual layers of coatings.
The Cutter is made from hardened steel and has 6 cutting blades so if one of the side become blunt you have a further 5 cutting side to use. The blades are precision cut.Cutting
Firstly you need to choose the right Cross Hatch Cutter for the required coating thickness. You need to hold the Cross Hatch Cutter so the blade sits normal against the test surface. Using even pressure you need to draw the cutting edge of the cutter across the coating at a uniform cutting rate.
Itís important all cuts penetrate through to the substrate. You will need to repeat the same process make additional parallel cuts, making sure to cross over the original cuts at 90 degrees which should form a lattice pattern.
The head of the Cross Hatch Cutter shall make 8 cuts in the surface; you will have a single fine cut each side which are used to keep the cutter steady when drawing, then the remaining 6 cuts in the middle will create the lattice pattern and itís this which will be the test area.