WebPull-off adhesion testing is a method of measuring the resistance of a coating to separation from a substrate when a perpendicular tensile force is applied. There are … WebAdhesion Testing Learn about adhesive testing and the material testing solutions we provide within adhesive testing. Skip to content English This site in other countries/regions: Select Country to see regional site for …
Coating Adhesion Testing - Applied Technical Services
The PosiTest AT Adhesion Tester is DeFelsko's solution for accurately performing a coating adhesion test. Available in both Manual (PosiTest AT-M) and Automatic (PosiTest AT-A) models, the pull-off adhesion tester measures adhesion of coatings to metal, wood, concrete, and other rigid substrates. See more This simple test requires the use of a utility knife to pick at the coating. It establishes whether the adhesion of a coating to a substrate or to another coating (in multi-coat systems) is at a generally adequate level. Performance is … See more On metal substrates, a more formal version of the knife test is the tape test. Pressure sensitive tape is applied and removed over cuts made in the coating. There are two … See more A scrape test is typically performed in a laboratory and is limited to testing on smooth, flat panel surfaces. Adhesion is determined by pushing the coated panels beneath a rounded stylus or loop that is loaded in increasing … See more A more quantitative test for adhesion is the pull-off test where a loading fixture, commonly called a dolly or stub, is affixed by an adhesive to a … See more chicago taft hs football
Pull-off Adhesion Testers for Paints and Coatings
WebOct 7, 2024 · Extensive adhesion testing has been conducted using the 85% solids polyaspartic coating system. The adhesion pull off strength of the polyaspartic published in its data sheet is 900 psi and acceptable results can vary by as much as 10% or more depending on the substrate used. WebSummary. When performing tensile (pull-off) adhesion according to ASTM or ISO standards, the adhesive (glue) selected to attach the loading fixture to the coated surface is critical to the test. If the glue fractures below the acceptance criteria the actual adhesion characteristics of the coating system remains unknown. WebThe adhesion of a coating or several coated sample of any paint product is measured by assessing the minimum tensile stress needed to detach or rupture the coating … google form phone number format