Introduction to ASTM D3359
A coating must remain attached to the substrate to preserve or decorate the substrate as intended. A technique to assess the adhesion of a coating to various substrates or surface treatments, or different coatings to the same substrate, is highly valuable in the industry since the substrate and its surface preparation, or lack thereof, have a significant impact on the adhesion of coatings. MaTestLab is one of the best testing service providers, with the best network of testing laboratories in the USA to carry out ASTM D3359 tests for our clients. ASTM D3359 is only suitable for assessing lower adhesion levels. ASTM D3359 simply serves as a signal that a minimum bond strength threshold has been reached or surpassed.
ASTM D3359 Test Method
| Test Method for field use | An X-cut is formed from the film to the substrate, adhesion is qualitatively evaluated on a 0–5 scale, and pressure-sensitive tape is placed over the cut and subsequently removed. |
| Test Method for Laboratory Use | Pressure-sensitive tape is put over the lattice pattern and subsequently removed, and adherence is qualitatively evaluated on a 0–5 scale. A lattice pattern with either six or eleven cuts in each direction is made through the film to the substrate. |
ASTM D3359 Test Specimens
| Specimen Detail | Multitip cutters will only produce good results in test regions of specimens that are sufficiently planned to allow every cutting edge to make equal contact with the substrate. |
| Specimen Size | Cuts spaced 1 mm apart are present in coatings with a dry film thickness up to and including 50 μm (2 mils). |
ASTM D3359 Test Result
These common testing procedures offer an organized way to grade adherence with the tape test. ASTM D3359 provides uniformity and precision in determining the adhesive characteristics of coatings on surfaces by specifying precise processes for tape adhesion preparation, application, and evaluation.
ASTM D3359 Related Tests
ASTM D3359 is related to tests, including ASTM D609 for cold-rolled sheet preparation and ASTM D823 for making paint films of uniform thickness.
