Designation: D – 02 Standard Test Methods for Measuring Adhesion by Tape Test1 This standard is issued under the?xed designation D. ASTM D Uploaded by. Leonardo Gonçalves. Loading Preview. Sorry, preview is currently unavailable. You can download the paper by clicking the. ASTM D Pull Off Test Standard. Uploaded by. vlong ASTM D MEK Test (Zinc Test). Uploaded by. vlong ASTM D Eng Cross-cut.
|Published (Last):||26 August 2011|
|PDF File Size:||10.96 Mb|
|ePub File Size:||12.5 Mb|
|Price:||Free* [*Free Regsitration Required]|
Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller.
It is not unexpected that different operators might obtain different results 7, 8. If the adhesion strength of the tape has not been determined, report the speci? Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
The color under the tape is a useful indication of when good contact has been made. satm
Procedure for A-X-CUT TAPE TEST METHOD-ASTM D
Criteria deemed essential for a test to warrant large-scale acceptance are: For tests in the field, ensure that the surface is clean and dry. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Asym Headquarters. After immersion, clean and wipe the surface with an appropriate solvent which will not harm the integrity aetm the coating. 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.
It is of particular importance that the cutting edge or edges be in good condition. Major limitations aztm the tape test are its low sensitivity, applicability only to coatings of relatively low bond strengths, and non-determination of adhesion to the substrate where failure occurs within a single coat, as when testing primers alone, or within or between coats in multicoat systems.
Key steps that directly re? These test methods were designed for relatively ductile coatings applied to metal substrates, not for coatings often brittle applied to plastic parts 7. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
The limited scale of 0 to 5 was selected deliberately to avoid a false impression of being sensitive. Also, Test Method B is not considered suitable for? Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating.
Cohesive failure within the coating? NOTE 2—It should be recognized that differences in adherability of the coating surface can affect the results obtained with coatings having the same atsm adhesion.
When making successive single cuts with the aid of a guide, place the guide on the uncut area.
ASTM International takes no position respecting the validity of sstm patent rights asserted in connection with any item mentioned in this standard. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.
Because of the variability in adhesion strength from batch-to-batch and with time, it is essential that tape from the same batch be used when tests are to be run in different laboratories. 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.
Direct tests include the Hesiometer and the Adherometer 2.
Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02
Both test methods are used to establish whether the adhesion of a coating to a substrate is at an adequate level; however they do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. The conditions and time of exposure will be governed by ultimate coating use or shall be agreed upon between the purchaser and seller.
For example, when the peel removal force of the tape from the coating used earlier by Task Group D Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller.
Adhesion is then rated by comparing? Differences in tapes used can lead to different results as small changes in backing stiffness and adhesive rheology cause large changes in the tension area. Users of it should, therefore, check whether current material gives comparable results to previous supplied material. If the peel angle and rate vary, the force required to remove the tape 33559-02 change dramatically.
Several factors that contribute to these differences include coating composition and topology: The manufacturer of this tape and the manufacturer of the tape used in the dd study see RR: