Overview
QFH 2 * 10mm Cross Hatch Cutter is a special tool for testing the adhesion of coatings. By making a cross-cut on the surface of the paint, the adhesion between the coating and the substrate is evaluated. The cutter head of this product is 11 teeth, with a spacing of 2mm, 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, which has good hardness, Abrasion Resistance, corrosion resistance and deformation resistance.
Principle
Cross Hatch Cutter works based on the principle of adhesion between the paint and the substrate. Cross-cut is made by scratching the surface of the paint, and then use tools such as disbonding tape to evaluate whether the paint at the cross-cut is firmly adhered to the substrate to determine whether the adhesion of the coating is up to standard. This model is suitable for hard substrates with film thickness 61 μm~ 120 μm or soft substrates (wood, plastic) with film thickness < 120 μm.
Applications
Paints, paints, coatings
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 knife should be selected according to specific standards and test requirements.
When using, make sure the knife is sharp to obtain accurate test results.
