Scratch Hardness Tester

Test Method: ISO; 1518 -1973, IS: 101 (Part 5/Sec 2)-1988 Out line of the test method This is a test method for determining the resistance of a paint film to penetration by scratching with a needle The test may be used a Go/No-Go test by applying a single specified load to the needle it may also be used by applying increasing loads to the needle to determine the maximum load at which the coating is pulled/penetrated to the substrate

Coatings and paints can protect, decorate substrate or conceal the defects of substrate, and these three functions are related with coatings hardness. And hardness is the important performance for paint mechanical strength, as well as the important indicator to judge paint quality. One of important indicators to evaluate coatings hardness is scratch tester. ISO 1518 《Paints and varnishes -- Determination of scratch resistance》specifies a test method for determining under defined conditions the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching with a scratch stylus loaded with a specified load. Penetration of the stylus is to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an intermediate coat. This test has been found to be useful in comparing the scratch resistance of different coatings. It is most useful in providing relative ratings for a series of coated panels exhibiting significant differences in scratch resistance. Before 2011, there is only one standard which is used to evaluate paint scratch resistance, which against to evaluate scientifically to paints scratch resistance under different applications. After revise this standard on 2011, this test method is divided two parts: One is constant-loading, i.e the loading to panels is constant during the scratch test, and the test results is shown as max. weights which don t damage coatings. The other is variable loading, i.e. the loading on which stylus loads test panel is increased continuously from 0 during the whole test, then measure the distance from finial point to the other point when the paint appear scratch. Testing result is shown as critical loads. As a important member of Chinese Paint Coating Standard Committee , Biuged is responsible for drafting the relative Chinese standards on the base of ISO 1518, and developed BGD 520 scratch testers which conforms the newest ISO 1518:2011. Characters ◆ Big working table can be moved left and right convenient for measuring different areas in the same panel ◆ Special fixing device for sample---can test different size substrate ◆ Sound-light Alarm system for puncturing through sample panel---more visual ◆ High hardness material stylus---more durable

Real scratch resistance and Heat repair Test Instant durability demonstration Professional testing tool Clear protection comparison Reliable workshop for use

A test panel is clamped driven by constant speed while needle scratches the surface.These are available in varied specifications and are offered at industry leading prices. We also meet customized requirement. Automatic Scratch tester specially designed for power coated scratch testing Sheen type with 1kg load & 5kg load.

Scratch Hardness Apparatus Model: AggrenoX 32 Manufacturer Exporter: SCIENTICO Standard: ASTM C851 Product Overview: The AggrenoX 32 Scratch Hardness Apparatus is a precision-engineered device used to determine the quantity of soft particles in coarse aggregates based on scratch hardness. This test is essential for assessing aggregate quality and ensuring the durability of concrete and pavement structures. Fully compliant with ASTM C851, this apparatus is a standard tool in aggregate testing laboratories. It features a 1.6 mm (0.0125") diameter brass rod with a rounded tip mounted in a precision plunger mechanism. The plunger, with a total weight of 2 0.1 lbs (8.9 0.4 N), is designed to move freely within its support stand, ensuring consistent and repeatable testing. The apparatus comes with a replacement brass rod, ensuring continued usability and accuracy. Key Features Benefits: ASTM C851 Compliant Ensures precise determination of soft particles in aggregates Precision Plunger Mechanism Allows smooth vertical movement for consistent scratch testing Standardized Brass Rod 1.6 mm dia. rounded point for controlled scratching action Ideal Test Load Overall plunger and point weight of 2 0.1 lbs (8.9 0.4 N) Durable Stand Stable, corrosion-resistant stand ensures long-term lab usage Easy Maintenance Supplied with 1 replacement brass rod for extended operation Laboratory Essential Ideal for civil engineering labs, material testing centers, and aggregate quality assurance setups Technical Specifications: ParameterDetails Model AggrenoX 32 Standard Compliance ASTM C851 Scratch Rod Material Brass Rod Diameter 1.6 mm (0.0125") Rod Tip Rounded Plunger Weight 2 0.1 lbs (8.9 0.4 N) Mounting Vertical support stand with free plunger movement Included Accessories 1 replacement brass rod Applications: Identification of soft particles in coarse aggregates Aggregate quality control in concrete and road construction Material testing in research and educational labs Suitability assessments for pavement and structural aggregates Why Choose AggrenoX 32 by SCIENTICO? As a trusted Mechanical and Civil Engineering Lab Equipment Manufacturer and Exporter, SCIENTICO delivers reliable, standard-compliant testing equipment. The AggrenoX 32 Scratch Hardness Apparatus is crafted for accuracy, durability, and ease of use supporting your lab s goals for material quality assurance. FAQs: Q1: What is the purpose of this apparatus? A1: It helps determine the percentage of soft particles in coarse aggregates by evaluating their resistance to scratching. Q2: Is the apparatus compliant with international standards? A2: Yes, it fully complies with ASTM C851. Q3: Does it include spare parts? A3: Yes, the unit is furnished with one replacement brass rod. Q4: Can the plunger be adjusted manually? A4: The plunger is mounted to raise and lower freely, ensuring smooth operation and consistent load application