ASTM D3359-08 PDF

ASTM D – Designation: D – 08 Standard Test Methods for Measuring Adhesion by Tape Test. Buy ASTM D TEST METHODS FOR MEASURING ADHESION BY TAPE TEST from SAI Global. ASTM D Historical Standard: ASTM D Standard Test Methods for Measuring Adhesion by Tape Test. SUPERSEDED (see Active link, below).

Author: Samukasa Samurisar
Country: Cuba
Language: English (Spanish)
Genre: Video
Published (Last): 11 February 2013
Pages: 99
PDF File Size: 14.96 Mb
ePub File Size: 5.64 Mb
ISBN: 381-8-14260-906-5
Downloads: 96419
Price: Free* [*Free Regsitration Required]
Uploader: Nikocage

Apparatus and Materials The accuracy and precision of the test result obtained by using these methods depends largely upon the skill of the operator and the operator’s ability to perform the test in a consistent manner. Adhesion is then rated by comparing lm removed against an established rating scale. Although some rather brittle coatings may exhibit cohesive failure, the tape test adhesion method does not make provision for giving failure locality 7, 8.

The intra- and inter-laboratory precision of this test method is similar 3d359-08 other test methods for coated substrates for example, Test Method D and Test Method Dand is insensitive to all but v3359-08 differences in adhesion. Cut through the film to the substrate in one steady motion using just sufficient pressure on the cutting tool to have the cutting edge reach the substrate. NOTE 2—Subject to agreement between the purchaser and the seller, Test Method B can be used for thicker films if wider spaced cuts are employed.

The intra- and inter-laboratory precision of this test method is similar to other widely-accepted tests for coated substrates for example, Test Method D and Test Method Dbut this is partly the result of it being insensitive to all but large differences in adhesion. Last previous edition approved in as D — Cohesive failure within the coating lm is also frequently observed.

It is reasonable to state that at the present time no test exists that can precisely assess the actual physical strength of an adhesive bond.

  HOW TO PROVE IT A STRUCTURED APPROACH DANIEL J.VELLEMAN PDF

The central issues are that the test on plastics lacks reproducibility and does not relate to the intended application. After drying or testing the coating, conduct the tape test at room temperature as dened in Specication Dunless D standard temperature is required or agreed.

Precision and bias data on the latter is lacking. Do not attempt to deepen a previous cut as this may affect adhesion along the incision.

ASTM D3359 Measuring Adhesion by Tape Test

Are you sure you want to empty the cart? Although some rather brittle coatings may exhibit cohesive failure, the tape test adhesion method does not make provision for giving failure locality 7, 8. It is not unexpected that different operators might obtain different results 12. Differences astn tapes used can lead to different results as small changes in backing stiffness and adhesive rheology cause large changes in the tension area.

However, with the tape test, failures within the substrate or coating layers are rare because the tape adhesive is not usually strong enough to exceed the cohesive strengths of normal substrates and organic coatings.

Do not attempt to deepen a previous cut as this may affect adhesion along the incision. Key steps that directly reect the importance of operator skill include the angle and rate of tape removal and the visual assessment of the tested sample.

NOTE 6—Coatings should be applied in accordance with Practice D, or as agreed upon d335908 the purchaser and the seller. NOTE 1—This test method has been reported being used to measure adhesion of satm coatings on soft substrates for example, wood and plastic. They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required.

They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required.

ASTM D 3359 – 09 Standard Test Methods for Measuring Adhesion by Tape Test

Cut through the lm to the substrate in one steady motion using just sufficient pressure on the cutting tool to have the cutting edge reach the substrate. 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. 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 f3359-08 interface or cohesive strength of the coating.

  JERZY DUDEK POD PRESJ PDF

Discard cutting tools that develop nicks or other defects that tear the lm.

ASTM D – 08 Standard Test Methods for Measuring Adhesion by Tape Test

Liberty University School of Education M. Issues with plastic substrates are noted in Appendix X1. These effects are related as they reect certain rheological properties of the backing and adhesive that are molecular in origin.

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.

Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 3. Adhesion is then rated by comparing film removed against an established rating scale.

NOTE 1—This test method has been reported being used to measure adhesion of organic coatings on 3d359-08 substrates for example, wood and plastic. Both concerns are well founded: Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.