ASTM D Standard Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels. Standard Practices for. ASTM D – Designation: D – 95 (Reapproved ) Standard Practices for Producing Films o. Standard ASTM D The following devices are in accordance with ASTM D : ZAA Automatic Film Applicator Coater.
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Hold the spray gun tip to mm 10 to 12 in. The values given in parentheses are for information only. Originally published as D — 45 T.
A mechanism shall be provided to stop the blade movement automatically at the end of the draw-down.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. NOTE 13—The width of the spray pattern should be considerably wider d82 the width of the test panel to assure spray uniformity on the test panel. NOTE 6—The test panels should not exceed ast, 12 in. NOTE 11—Paper charts should be taped down to prevent curling of the edges that causes the wet? A number in parentheses indicates the year of last reapproval.
Users of this standard are expressly advised satm determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Suitable apparatus, is shown in Fig. If the coating thickness is too high, coat another panel using a faster rate of panel withdraw.
This machine can 1 move the panel holder, with test panel, at a uniform speed through the xstm spray produced by a?
ASTM D – Zehntner GmbH
ASTM D e1. 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.
Use of a multiple hook will permit dipping several panels at one time. NOTE 3—Suitable traverse speeds for automative coatings usually range from NOTE atsm panels shall be cleaned in an approved manner.
Standard ASTM D823
NOTE 4—The width of the spray pattern should be considerably wider than the width of the test panel to assure spray uniformity on the test panel. If the coating thickness is too high, coat another panel using a smaller blade clearance. The base plate shall hold paper charts? Current edition approved Nov.
Start the motor-drive and coat the test panel. Bake, force-dry, or air-dry the coated panel, in accordance with its type, in a vertical position in a dust-free atmosphere in accordance with Speci? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
The blade holder shall be designed to accommodate common types of applicator blades and to accept weights for loading the applicator blade. Last previous edition D — 92a. Typical machines are shown in Fig. Preparation of Apparatus Summary of Practice 9. Wind the cord once completely around the pulley of the correct size to give the desired rate of withdrawal.
This standard has been approved for use by agencies of the Department of Defense.
Steel panels shall be prepared in accordance with the appropriate method in Practice D Data are available3 on a variety of materials and? Subsequent reproduction of the same operating conditions should give the same?
Insert the blade in the blade holder and load the holder with weights if needed. A suitable apparatus is shown in Fig.
The machine shall asym designed to move the panel holder at a uniform speed past the? Measure thickness on at least three different areas of the test panel to determine coating uniformity. Preparation of Apparatus 6. If the coating thickness is too high, coat another panel with fewer passes of the spray pattern or, if this is not feasible, reduce the material further with thinner. As the auxiliary bar is pushed by the applicator, it should press the substrate?
Adjust the air pressure material? Gradually make the spray pattern move across the panel at a traverse speed of to mm 10 to 15 in.