Scratch tester manufacturer

Electric cross grid tester/cross scratch testerAccording to the European standard EN ISO 2409 instead of DIN 53151, BS 3900: E6, NF T 30-38, it is used for various scratch resistance and scratch resistance tests on paint and coating surfaces to determine the adhesion performance of paints and coatings. It is suitable for construction sites, laboratories, etc. under various conditions.

Main purpose:

Electric cross grid tester/cross scratch testerUsed for conducting various scratch and scratch resistance tests on paint and coating surfaces to determine the adhesion performance of paints and coatings.

Applicable standards:

1. VDA 621-411 Paint Adhesion

2. EN ISO 2409 Coatings - Coating Grid Cutting Test

3. ASTM/D 3359 Standard Test Criteria for Coating Adhesion Testing by Tape Method

Technical features:

1.2 engraving speeds and 2 engraving lengths can be combined as required.

2.9 types of pre designed cross engravings that meet most commonly used standards.

3.1 Free program controlled cross engraving mode to adapt to special needs.

4. Set the engraving distance using a stepper motor.

When carving through the insulation layer to the metal substrate, there will be a display.

6. Quick clamping device with a wide clamping range.

Technical Specifications:

1. Instrument power supply: 115/230 VAC, 50/60Hz (please specify voltage when ordering)

2. Equipment power: 400W

3. Test piece specification: 80 × 50mm

4. Sample thickness: 0.5~20mm

5. Standard load range: 2~50N (2N base)

6. Special load range: 1~10N (1N carry) (accessories to be purchased)

7. Marking path: 25 or 40mm

8. Scratching speed: 1m/min or 40mm/s

Cross scratch test:

The scratch test can be conducted according to general standards without the need for additional procedures. You can choose the following cross cutting method (number of cuts x distance mm). 2 × 5, 6 × 1, 6 × 2, 6 × 3, 8 × 1, 8 × 2, 11 × 1, 11 × 2.

Continuous automatic cross engraving with a hard metal blade tip at a speed of 40mm/s. Rotate the test piece 90 ° and repeat the cross engraving process. In the trial scratch, the load requirement for cutting the coating onto the substrate can be identified.

When analyzing some standards, adhesive tape should be used for peeling. Adhesive tape will also be supplied to customers as an accessory to meet the requirements of EN ISO 2409 (tape width 25mm, adhesive force 10 ± 1N). The scope of supply includes a 2.5x magnifying glass for evaluating engraving. The appearance quality in most standards can be visually compared using standard scales (scratch gauges).

Although the adhesion test using the scratch method can be compared with each other, it is not suitable for comparison with the results of other test methods (such as the vertical detachment test EN 24 624). Because they are different processes.

Scratch resistance test:

According to the anti scratch test of GME 60280, select a blade with a diameter of 1mm and a predetermined grid spacing (20 blades, 2mm apart). Use the same 5N grid test for pressure and a speed of 1 meter per minute.

When analyzing the scratch resistance test, compare the shell degree difference △ L with the undamaged plastic surface. The D65 illumination light source can meet this requirement, and the geometric angle d/8 measurement hole is 27mm.