Technical Specifications of Tin Can Ink Scratch Tester

Shanghai Chengwei complies with the relevant standards of ISO 1518, BS 3900, ASTM D 5178 and ASTM D 2197. The scratch tester can test the scratch resistance of product surface coatings, such as coil paint, tin can ink, metal paint, automotive surface coating, etc. The scratch tester is suitable for evaluating the surface scratch resistance of single coating or composite coating of color-coated plates. The scratch resistance of the coating is evaluated by the load of a spherical steel needle scratching the coating or the load of a spherical steel needle not scratching the coating under a certain weight.

During the scratch test, a hemispherical stylus with a diameter of 1 mm is slowly brought into contact with the surface to be tested, and a scratch of about 10 cm in length is made. Depending on the purpose of the test and the load applied, different degrees of penetration can be observed, from surface marks to complete penetration. The motor drives the sample to gently contact the stylus, which passes over the sample and stops automatically when it reaches the end point. The contact between the stylus and the metal substrate is identified by a voltmeter, and when the coating of the sample to be tested is scratched, the ammeter shows that current is passing.

2. Technical indicators

Motor: 60W 220V 50HZ

★Weight: 1000g/500g/200g each, 200g/100g each

★Running speed: 30-40mm/sec

★Dimensions: 380*300*180mm (length*width*height)

Speed ​​​​scratch tester paint film scratch tester paint coating testing equipment use

The coating film strength, hardness, adhesion, etc. are important physical properties of the coating film, and their size directly affects the important performance of the coating film, such as wear resistance; abrasion resistance; scratch resistance; impact resistance, as well as the retention effect of the coating film and the ease of cleaning, etc. Therefore, the coating film strength, hardness, etc. are necessary indicators for evaluating the performance of the coating. This instrument can be used to conveniently and comprehensively evaluate the physical properties of the coating film strength, hardness, adhesion, etc. Therefore, the purpose of this instrument is to characterize the strength, hardness, and adhesion of the coating through the size of the resistance to penetration when the coating of the paint film sample is scratched by a stylus.