MES offers adhesion testing for COATINGS, ADHESIVES & materials.

adhesion testing

It is a requirement that coating systems adhere well to their substrates. Determination of the failure point can be critical for the final use of a coating system or adhesive. Adhesion testing provides insight into the quality of the bond and the force required to cause fracture. MES provides adhesion testing for paints, adhesives, thermal sprays, varnishes and lacquers. Coating systems are tested on a variety of substrates, such as metals, polymers, ceramics, and concrete. If a coating system fails prematurely, our team of materials scientists can provide root cause analysis and help prescribe corrective actions.

MES provides the following standard tests for adhesion testing:

  • Pull Off Adhesion Testing (ASTM D4541) utilizes a portable tester to measure the force required to pull a specified diameter of coating away from its substrate through the use of metal dollies adhered to the coating system. This measured pull-off force provides a direct indication of the strength of adhesion between the coating and the substrate. This test can be performed in the laboratory or in the field for a variety of substrates, including metals and concrete.

  • Cross-Cut or Cross Hatch Adhesion Testing (ASTM D3359) is accomplished by cutting into the adhesive to the substrate by utilizing a blade tool. Any loose material at the cut areas is removed by applying pressure-sensitive tape and quickly pulling it off. The degree of material loss is graded by comparison with a standard rating system.

  • Peel Testing of Pressure Sensitive Tape (ASTM D3330, Test Methods A, B, C, E, or F) can show the relative bond strength of a given tape to one or more surfaces (material and texture) as compared to a standard stainless steel panel.

  • Scrape Loop Adhesion Testing (ASTM D2197) is used to determine the adhesion of organic coatings such as paint, varnish, and lacquer when applied to smooth, flat (planar) panel surfaces. This method determines the amount of normal load required to introduce a scratch on the coated surface by a rounded, loop stylus.

If your coatings or adhesives are failing or do not meet specifications, our materials characterization laboratory and engineering experts can help you determine the root cause of the issue.

To learn more about our adhesion testing, or to request a quote, contact us today.