Overview
QFH 2 * 5mm Cross Hatch Cutter is a special tool for testing the adhesion of coatings, evaluating the adhesion between coatings and substrates by making cross-cuts on the surface of the paint. The cutter head of this product is 6 teeth, with a spacing of 2mm cutter teeth, in line with ISO, GB, ASTM standards. The cutter head is made of Cr12MoV high carbon and high chromium tool steel, which has good Abrasion Resistance and high hardness.
Features
1. The cutter head is made of Cr12MoV high-carbon and high-chromium tool steel.
2. Good hardness, Abrasion Resistance, corrosion resistance and deformation resistance.
Principle
The principle of the Cross Hatch Cutter is based on the adhesion between the paint and the substrate. Cross-cut is made by scratching the surface of the paint, and then the coating at the cross-cut is evaluated for strong adhesion to the substrate using appropriate tools (e.g. disbonding tape) to determine whether the adhesion of the coating is up to the expected standard. The multi-edge cutter of this model with a 2mm pitch is suitable for hard substrates with film thickness 61 μm~ 120 μm or soft substrates (wood, plastic) with film thickness < 120 μm.
Applications
Coatings, paints, coatings and other fields
Standards
GB/T 9286、ISO2409、ASTM D 3002、ASTM D 3359
Steps
1. Place the Cross Hatch Cutter on the painted surface.
2. Run the paint with the appropriate force to form a set of cross cutting lines.
3. Cover the paint surface with adhesive tape.
4. Quickly tear off the tape and observe whether the paint at the cross-cut is damaged or disbonding.
Notice
• This model is suitable for film Film thickness 61μm~ 120μm hard substrate or Film thickness < 120μm soft substrate (wood, plastic).
• When testing, the pitch and angle of the rake should be selected according to specific standards and test requirements.
• When using, make sure the blade is sharp to obtain accurate test results.
