ASTM D MEK Test (Zinc Test) – Free download as PDF File .pdf), Text File . txt) or read online for free. Designation: D – Standard Test Method for. Measuring MEK Resistance of Ethyl Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub1 This standard. Designation: D – 03 Standard Test Method for Measuring MEK Resistance of Ethyl Silicate (Inorganic) Zinc-Rich Primers by Solvent Rub1.
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A certain minimum degree of cure is necessary prior to topcoating.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Current edition approved Jan.
Solvent Resistance Rub Test – ASTM D4752
Clean the surface with tap water or dry cloth to remove loose material. It has been shown that the degree of cure of ethyl silicate zinc-rich primers can be measured by the chemical ast occurring using diffuse reflectance infrared spectroscopy.
The MEK resistance of some twocomponent ethyl silicate zinc-rich primers has been shown to correlate well zstm the cure of the primer as determined by diffuse re? A superscript epsilon e indicates an editorial change since the last revision or reapproval.
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 following observations were made through this analysis: The values given in parentheses are for information only. Last previous edition approved in as D — Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided d7452 part of the standard. Precision and Bias 8. Originally approved in Link to Active This link will always route to the current Active version of the standard.
Individual reprints single or multiple copies of d452 standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Do not allow more than 10 s to elapse before proceeding to the next steps. The MEK resistance of some two-component ethyl silicate zinc-rich primers has been shown to correlate well with the cure of the primer as determined by diffuse reflectance infrared spectroscopy.
Mark a by mm 6- by 1-in. Specific hazard statements are given in Section 6. As relative humidity and temperature vary during the day, so does the rate of cure.
It is the responsibility of the asstm of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Separate test panels corresponding to each coating thickness category were scored after a 6-h cure period and a h cure period.
Historical Version s – view previous versions of standard. Rate the results in accordance with Table 1. Using the procedure outlines in this test method, eight different operators were asked to rate, in triplicate, the methyl ethyl ketone MEK rub resistance of a particular inorganic zinc-rich asgm. If the former, record the number of rubs when the substrate is exposed.
The primer was separately applied to multiple test panels at two different dry? 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 has been shown that the degree of cure of ethyl silicate zinc-rich primers can be measured by the chemical changes occurring using diffuse re? Asfm Society for Protective Coatings, 40 24th St.
TABLE 1 Scale for Resistance Rating Resistance Rating 5 4 3 2 1 0 Description No effect on surface; no zinc on cloth after 50 double rubs Burnished appearance in rubbed area; slight amount of zinc on cloth after 50 double d472 Some marring and apparent depression of the?
A number in parentheses indicates the year of last reapproval. Practice D is the preferred method for organic coatings.
Reagents and Materials 5.