Want us to test your samples?
Please fill up our form and we will reach out to you soon!
ASTM D7187, the resistance of the paint to scratch and mar plays a vital role in its end use. Automotive paint susceptible to scratches makes it difficult and costly to maintain and repair. Different coating architectures of the primer, basecoat, and clearcoat have been developed to achieve the best scratch/mar resistance. Nanoscratch testing has been developed as a standard test method to measure the mechanistic aspects of scratch/mar behavior of paint coatings as described in ASTM D7187. Different elementary deformation mechanisms, namely elastic deformation, plastic deformation and fracture, occur at different loads during the scratch test. It provides a quantitative assessment of the plastic resistance and fracture resistance of the paint coatings.
The wear process of the acrylic urethane floor paints with different topcoats is simulated in a controlled and monitored manner using the Nanovea Tribometer as shown in Fig. 1. Micro scratch testing is used to measure the load required to cause cohesive or adhesive failure to the paint. In this study, we would like to showcase that Nanovea Mechanical Tester and Tribometer are ideal tools for evaluation and quality control of commercial floor and automotive coatings.
The measurement of textile abrasion resistance of fabrics is very challenging. Many factors play a role during the test, including the mechanical properties of the fibers, the structure of the yarns and the weave of the fabrics. This may result in poor reproducibility of test results and create difficulty in comparing values reported from different laboratories. Wear performance of the fabrics is critical to the manufacturers, distributors, and retailers in the textile production chain. A well-controlled quantifiable and reproducible Tribometer wear resistance measurement is crucial to ensure reliable quality control of the fabric production.
Understanding textile texture, consistency and patterns of the fabrics allows the best selection of processing and control measures. Traditional stylus-based profilometers determine the surface morphology of the coatings by sliding in contact across the measured surface, which may deform the soft fabric and induce inaccurate measurement. The Nanovea 3D Non-Contact Profilometer utilize chromatic confocal technology with unmatched capability to provide a comprehensive analysis of the surface feature of fabrics, making it an ideal tool for reliable product inspection and quality control.