ASTM D3359-17 pdf free download.Standard Test Methods for Rating Adhesion by Tape Test.
3. 1 . 1 adhesion, n—the molecular attraction and mechanical bonds between a coating and its substrate.
3. 1 .2 batch, n—as it pertains to tape. a unique production run during manufacturing.
3.1.3 bkmjsli, n—an obvious surface flaw, such as cracking or discoloration of the coating.
3. 1 .4 environmental conditions, n—the characteristics of the immediate surroundings during the tests, such as temperature, and relative humidity.
3. 1 .5 iunniersion conditions, n—the characteristics of the fluid to which the test specimen was exposed, such as type of fluid, temperature of fluid and duration of immersion.
3.1.6 lap, n—one complete turn of the tape on a roll: the outer exposed layer of tape.
3. 1 .7 lattice pallern, n—one series of parallel lines intersected by another set of parallel lines that are at 90° to and centered on the first set.
3. 1 .8 mean, n—the classification rating that is obtained by adding together the digits of the classification ratings of the tests performed and dividing by the number of tests, frequently rounded to the nearest whole iiumbcr classification rating.
3.1.9 pressure-sensitive tape. n— tape with an adhesive that requires some degree of pressure. and only pressure. to adequately bond to a surface.
3.1.10 range, n—the span of classification ratings for a set ol tests, from minimum classification rating to maximum classification rating.
3. 1.11 solvent. n— a liquid agent capable of dissolving or dispersing contaminants from the surface of the coating or film.
3. 1.12 sithsiraie, n—the structural foundation beneath the coating or film being tested.
3.1.13 template, n—a thin, rigid plate containing evenly distributed, parallel slits for use as a guide in generating the lattice pattern when accompanied by a single-blade cutting tool.
3.1.14 rest specimen, n—the object whose coatings adhesion is of interest.
4. Summary of Test Methods
4. 1 Test Method A—An X-cut is made through the film to the substrate, pressure-sensitive tape is applied over the cut and then removed, and adhesion is assessed qualitatively on a 0 to 5 scale.
4.2 Test Method B—A lattice pattern with either six or eleven cuts in each direction is made through the film to the substrate, pressure-sensitive tape is applied over the lattice pattern and then removed, and adhesion is assessed qualitatively on a 0 to 5 scale.
4.2.1 Subject to agreement between the purchaser and the seller, Test Method B can be used for films thicker than 125 um (5 mils) if wider spaced cuts are employed.