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Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
Introduction
The GA-ER109 Multifunctional Scratch Tester is a testing instrument independently developed and manufactured by our company. It integrates two scratch testing methods commonly used in the automotive industry—the cross-hatch (grid) method and the five-finger method—to evaluate the scratch resistance of various automotive interior and exterior materials (including plastics, rubber, leather, fabrics, coated and uncoated materials, composites, paints, inks, soft metals, etc.).
Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
Standards Compliance
PV3952, PV3974, GMW 14688, GMW 14698-A, Ford BN 108-13, General Motors GMN 3943, Daimler-Chrysler LP-463DD-18-01, GB2918, GB6151, GB8424.3, BMW GS 97034, STD1024-3113
Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
1. Cross-Hatch (Grid) Scratch TestTest Principle
Represented primarily by standards such as GM's GMW14688 and Volkswagen's PV3952, this method employs a metal stylus of a specific diameter (typically 0.5 mm or 1 mm) to create two sets of mutually perpendicular parallel scratches on the product surface under a load of 5–15 N. The material's scratch resistance is then evaluated by measuring changes in color difference or blackness within the scratched area before and after the test.
Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
2. Five-Finger Scratch TestTest Principle
The specimen is secured to the test platform. One end of the scratch arm holds a highly polished tungsten carbide scratch tip (with a diameter of 1 mm or 7 mm), while the other end holds a weight. The mounting position, quantity, and load of the scratch arms are determined based on specimen dimensions and testing requirements. The scratch distance is typically set between 100 mm and 200 mm, and the scratch speed is 100 mm/s. Upon completion of the test, the scratches are visually inspected under bright northern skylight or a D65 standard light source to evaluate the material's scratch resistance.
Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
Specification
Cross-Hatch (Grid) Scratch Test Main Technical Specifications
Item
Specification
Power Supply
115/230 VAC, 50/60 Hz (please specify voltage when ordering)
Power Consumption
400 W
Test Specimen Dimensions
80 × 50 mm
Specimen Thickness
0.5–20 mm
Standard Load Range
2–50 N (2 N increments)
Special Load Range
1–10 N (1 N increments) (requires optional accessories)
Scratch Path Length
25 mm or 40 mm
Scratch Speed
1 m/min or 40 mm/s
Multi-Function Scratch Mar Analyzer Car Surface Marring Test Instrument Anti-Scratch Performance Detector Coating Scuff Tester
Five-Finger Scratch Test Main Technical Specifications
Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong, is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent tes...
Dongguan Lonroy Equipment Co., Ltd, located in Dongguan, Guangdong, is a leading company specializing in the research and development, manufacturing and sales of high-tech and high-precision testing equipment. With 20 years of industry experience, we are committed to providing excellent tes...
