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ASTM D823 PDF

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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Suitable apparatus, is shown in Fig.

D83 D e1. The base plate shall hold paper charts? 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.

Preparation of Apparatus Summary of Practice 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? Insert the blade in the blade holder and load the holder with weights if needed.

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A number in parentheses indicates the year of last reapproval. Prior to withdrawal, the panel, attached to the cord, is lowered by hand into the container holding the material. Hold the spray gun tip to mm 10 to 12 in. If the coating thickness 8d23 too high, coat another panel using a faster rate of panel withdraw.

Current edition approved Nov.

The values given in parentheses are for information only. Adjust the air pressure, material? Adjust the air pressure material? The blade holder shall be designed to accommodate common types of applicator blades and to accept weights for loading the applicator blade.

Data are available3 on a variety of materials and? The viscosity range for normal? Place the auxiliary bar in front of the pool of material see Fig.

If the coating thickness is too high, coat another panel using a smaller blade clearance. Summary of Practices 3. Connect the air line hose from the regulator to the air awtm gage which in turn is connected to the air inlet of the spray gun.

The machine shall be designed to move the panel holder at a uniform speed past the? Preparation of Apparatus 6.

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Standard ASTM D823

NOTE ast test panels should not exceed mm 12 in. Originally published as D — 45 T. Wind the cord once completely around the pulley of the correct size to give the desired rate of withdrawal. Subsequent reproduction of the same operating conditions should give the same? As the auxiliary bar is pushed by the applicator, it should press the substrate?

ASTM D – Zehntner GmbH

Measure the temperature of the material in the container at the time of application. Reduce the material to a viscosity suitable for spraying. NOTE 9—Rigid panels shall be cleaned in an approved manner. Typical machines are shown in Fig. This standard has been approved for use by agencies asrm the Department of Defense.

Summary of Practice 9.