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SF
SF381
Product Features & Attributes
This automatic scratch tester is used for scratch resistance, abrasion resistance and solvent resistance testing of paints, varnishes and composite coatings. Multi-functional with scratch test, cross-cut test, solvent resistance (MEK) test and abrasion test capabilities. It is ideal multi-functional equipment for coating performance testing in paints, plastics, leather, automotive, furniture and other industries.
Working Principle: Test samples are fixed to the moving slide plate via guide rails. A movable crossbeam on two columns carries test tools and loads. During scratch testing, the tool contacts the sample while it moves forward. At the test point, the guide plate lifts the tool, allowing lateral movement for a series of scratches at different pressures. For reciprocating tests, samples move back and forth with preset cycle counts.
Test Types Available:
Scratch test: Single stroke, adjustable pressure, preset speed for scratch resistance evaluation
Cross-cut test: Single stroke, adjustable pressure, spacing controlled manually or via software for adhesion evaluation
Solvent resistance test (MEK): Reciprocating cycles, preset count, felt pad with various liquids (solvents, oil, brake fluid, cleaners) for chemical resistance evaluation
Abrasion test: Reciprocating cycles, preset count for wear resistance evaluation
Technical Features:
Multi-functional all-in-one design covering multiple coating tests
Adjustable pressure 0.5~20N (optional 1~40N), wide load range
Three fixed speeds plus one freely adjustable speed
Cross-cut spacing controlled manually via slide scale or software
Universal adapter for custom or standard tools
Current sensing function for insulating coatings on conductive substrates
Round and square adapters for different abrasion media
Accessories:
Round and square adapters (abrasion testing)
Special felt pads (solvent resistance testing)
Universal adapter (scratch/cross-cut testing)
Technical Parameters:
Material movement speed: 3cm/s
Applications:
Coatings: Scratch resistance testing of paints and varnishes
Plastics: Wear testing of switches, displays, furniture, automotive interior parts
Leather: Abrasion testing of shoes, clothing, belts
Textiles: Functional fabrics including automotive seat covers, seat belts
Automotive paints: Chemical resistance to gasoline, diesel, brake fluid, cleaners
Available in different specifications: different load ranges (50-2500g, 100-5000g, etc.), different pressure ranges (0.5-20N, 1-40N, etc.), and different test tool configurations (scratch needle, cross-cut blade, felt adapters) to suit various coating types and testing standards.
Mainly used in paint manufacturers, automotive coating companies, plastic product factories, leather product factories, quality inspection institutions, research universities, and more for coating scratch, abrasion and solvent resistance testing.