ISO was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. iso - Download as PDF File .pdf), Text File .txt) or read online. Adhesion measurements as described in EN ISO Cross-cut test. In this method a right angle lattice pattern is cut into the coating penetrating through to the.
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ISO (E). PDF disclaimer. This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may. BS EN ISO. BS. E Paints and varnishes —. Cross-cut test. The European Standard EN ISO has the status. (ISO ). Peintures et vernis - Essai de quadrillage (ISO ) .. version online. I.S. EN ISO EN: COMBINED PDF.
The dimensions shall be such as to allow the test to 4. Amit Verma. Make the measurement at, or as near as possible to, the positions at which the cross-cut is to be made. The description of suitable methods for removal of loose paint have been transferred to an informative annex as examples and, for the method using adhesive tape, the adhesive strength of the tape is no longer specified The single-blade cutting tool originally used in the first edition of this international standard has been re-introduced A cutting tool used with automatic cross-cut apparatus has also been specified The pictorial standard for classification 2 has been replaced by one originally used in the first edition and the second edition of this international standard Plastics have been added as an example of a hard substrate in 6. Because the substrate and its surface preparation or lack thereof have a drastic effect on the adhesion of coatings, a method to evaluate adhesion of a coating to different substrates or surface treatments, or of different coatings to the same substrate, is of considerable usefulness in the industry.
Although the test is primarily intended for use in the laboratory, it is also suitable for field testing.
Although the method is applicable to paint on hard e. The method is not suitable for coatings of total thickness greater than gm or for textured coatings. The method, when applied to coatings designed to give a rough patterned surface, will give results which will show too much variation. Worldwide Standards We can source any standard from anywhere in the world.
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You may find similar items within these categories by selecting from the choices below:. Cross-cut test Status: Remove an additional length at a steady rate and cut a piece approxi- mately 75 mm long. Place the centre of the tape over the lattice in a di- rection parallel to one set of cuts as shown in figure 3 and smooth the tape into place over the area of the lattice and for a distance of at least 20 mm beyond with a finger.
To ensure good contact with the coating, rub the tape firmly with a fingertip. The colour of the coating seen through the tape is a useful indication of over- ali contact. Within 5 min of applying the tape, remove the tape by grasping the free end and pulling it off steadily in 0,5 s to 1.
Carry out the evaluation of the results as fol- - soft substrates: During the viewing pro- cess, rotate the panel so that the viewing and light- ing of the test area are not confined to one direction. It may be useful to examine the tape in a similar manner. NOTE 7 Additional guidance i s given by the de- scriptions given in table l.
In table 1, a six-step classification is given. Special circumstances may arise, in which case the complete six-step classification will be necessary. In the case of a multi-coat system, report the site of separation between coats or between coats and su bst rates. Any degree of flaking that cannot even be classified by classification 4. The information required should preferably be agreed between the interested parties and may be derived, in part or totally, from an international or national standard or other document related to the product under test.
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As Rosa Mangas Lopez. Historical Version s - view previous versions of standard. Translated Version s: More D Because the substrate and its surface preparation or lack thereof have a drastic effect on the adhesion of coatings, a method to evaluate adhesion of a coating to different substrates or surface treatments, or of different coatings to the same substrate, is of considerable usefulness in the industry.
The intra- and inter-laboratory precision of this test method is similar to other test methods for coated substrates for example, Test Method D and Test Method D , and is insensitive to all but large differences in adhesion. Limiting the range of rankings from 0 to 5 reflects the inability of this test method to make fine distinctions between levels of adhesion.
Users shall not use intermediate values for ranking adhesion tests within this method. As such, no single tape is likely to be suitable for testing all coatings. Furthermore, these test methods do not give an absolute value for the force required for bond rupture, but serves only as an indicator that some minimum value for bond strength was met or exceeded 1 , 2.