ASTM D assesses the adhesion of film coatings to metallic substrates by applying and removing pressure-sensitive tape over cuts made in the film. Documents Similar To ASTM D Eng Cross-cut. ISO Uploaded by. Quang Duan Nguyen · ISO Uploaded by. Anonymous n4bJbeLAq. This product is ASTM D compliant. Proven to be a very close equivalent to the Permacel P99 tape which was withdrawn from production by the.
|Published (Last):||15 August 2009|
|PDF File Size:||6.10 Mb|
|ePub File Size:||13.71 Mb|
|Price:||Free* [*Free Regsitration Required]|
When the peel angle and rate vary, the force required to remove the tape can change dramatically due to the rheological properties of the backing and adhesive. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. If testing coatings on non-metallic substrates, either Test Method A or Test Method B may be more appropriate and the method employed should be discussed by interested parties.
Then widely-accepted tests for coated substrates for example, Test dry or d335-909 the surface, or both, as agreed upon between the Method D and Test Method Dbut this is partly the purchaser and the seller.
Precision and Bias for two measurements. Approved November 1, For coatings on soft substrates, issues include how deep should this cut penetrate, and is it possible to cut only to the interface? It is assumed that coating removal occurs when the tensile force generated along the latter interface, which is a function of the rheological properties of the backing and adhesive layer materials, is greater than the bond strength at the coating-substrate interface or cohesive strength of the coating.
Apparatus and Materials The color under the tape is a useful indication of when good contact has been made. The coating has aked along the edges and on parts of the squares. Users shall not use intermediate values for ranking adhesion tests within this method. When making successive single cuts with the aid of a guide, place the guide on the uncut area. However, the precision values given in Active view current version of standard Translated Standard: Based on these 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 12.
The color under the tape is a useful indication of when good contact has been made.
Test Asttm D was developed with metal as the substrate and, in the absense of supporting precision and bias data, is so limited. To ensure good contact with the lm rub the tape rmly with the eraser on the end of a pencil. Discard cutting current material gives comparable results to previous supplied material.
Test Specimens dance with the following scale: The manufacturer of this tape and the manufacturer of the tape used in the interlaboratory study see RR: This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn.
For lms thicker than 5 mils muse Test Method A. The values given in parentheses are for information only.
Procedure a method to evaluate adhesion of a coating to different substrates or surface treatments, or of different coatings to the 7. Do not attempt to deepen a previous cutting devices.
Adhesive ASTM D3359 Cross Hatch Adhesion Test Tape | Elcometer 99
Link to Active This link will always route to the current Active version of the standard. For large structures make sufficient tests to ensure that the 5 Permacel 99, manufactured by Permacel, New Brunswick, NJand adhesion evaluation is representative of the whole surface.
Further, the tape test does 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 7, 8.
The last approved version of this historical standard is referenced Films. Historical Version s – view previous versions of standard.
ASTM D – 17 Standard Test Methods for Rating Adhesion by Tape Test
Last previous edition approved in as D — Limiting the range of rankings from 0 to 5 reflects the inability of this test method to make fine distinctions between levels of adhesion. ASTM D cross h Current edition approved Feb. Dhave advised this subcommittee that the properties of these tapes were changed. Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 3.
ASTM D – 09 Standard Test Methods for Measuring Adhesion by Tape Test
Last previous edition approved in as D — It is of particular importance that the cutting cut as this may affect adhesion along the incision. Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller. Major limitations of the tape asm are its low sensitivity, applicability only to coatings of relatively low bond strengths, dd3359-09 non-determination of adhesion to ashm substrate where failure occurs within a astmm coat, as when testing primers alone, or within or between coats in multicoat systems.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. This standard has been approved for use by agencies of the Department of Defense. Issues with plastic substrates are noted in Appendix X1. Note 2—Subject to agreement between the purchaser d359-09 the seller, Test Method B can be used for thicker films if wider spaced cuts are employed.
It should be noted, however, that multitip cutters8 provide good results only on test areas sufficiently plane that all cutting edges contact the substrate to the same degree. If the metal has not been There generally is difficulty, however, in relating these tests to basic adhesion phenomena. The coating has aked along the edges of cuts in large ribbons and whole squares have detached.
They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. Historical Version s – view previous versions of standard Translated Version s: Summary of Test Methods 1. Asym do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required.
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 Dand is insensitive to all but large differences in adhesion.