The paint film scratcher is a special paint film crosser suitable for the adhesion test of organic coatings, because this paint film crosser is very small and portable, not only suitable for the laboratory, but also suitable for various conditions construction site. The cross-hatch is to draw vertical, horizontal and vertical graphics on the coating sample plate, and then stick the surface of the coating film with pressure-sensitive tape, and then use the torn tape to evaluate the degree of peeling off.
This article lists several domestic brands of cross -hatchers with 6 teeth and a spacing of 3mm for parameter comparison. So what are the differences between these four instruments?
| model |
Jingke QFH cross-cut adhesion Tester |
Pushen HGQ multi-blade scratcher |
Modern Environment QFH Scratcher |
|
| Tooth spacing | 1mm 2mm 3mm | 3mm | 3mm | 2mm 3mm |
| Number of teeth | 6 | 6 | 6 | 6 |
| Tested substrate | Hard Substrate Soft Substrate | Hard substrate | Hard Substrate Soft Substrate | Hard Substrate Soft Substrate |
| Measured film thickness | 0~60μm 61~120μm 121~250μm | 121~250μm | 61~120μm | 61~120μm 121~250μm |
| Number of blades | multi-edged | multi-edged | multi-edged | single edge |
| Applicable standard | ISO 2409 | GB/T 9286 ASTM D3359 ISO 2409 | ISO 2409 | GB/T 9286 ISO 2409 |
| Number of teeth | 6 teeth | 6 teeth | 6 teeth | 6 teeth |
| Tooth spacing | 1mm, 2mm, 3mm | 3mm | 3mm | 1mm, 2mm, 3mm |
| Instrument material | plastic | Stainless Steel Knife Material | ||
| application standard | ISO2409-1974 | GB/T 9286, ISO 2409, ASTM D 3359 | ISO 2409 | GB/T9286-88, ISO2409-72, DIN53151 |
| Applicable film thickness environment | Suitable for hard substrate test pieces larger than 120μm | 60~120μm |
The above is the comparison of the paint film scriber with 6 teeth and 3mm spacing. They have their own advantages and disadvantages, and you can choose the appropriate scriber according to the actual situation.
