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It has a closely? Dust and abrasive removal 2. A surface that is too hot may cause the coating solvents to evaporate so fast that application is difficult, blistering takes place, or a porous?
Therefore their use is generally restricted to rougher surfaces such as the substrate and faster drying coatings. These include oil, grease, soil, weld splatter, and slag, which make it impossible to obtain proper adhesion to the metal surface 5.
Thickness of coating on any type of stable substrate may be determined, and individual coats may be measured separately providing they are distinguishable, for example, by color. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
It includes the key elements of surface preparation, coatings application, and? See Guide D for establishing procedures to certify inspectors for coatings work in nuclear facilities.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Product MSD sheets 3. High voltage holiday testing is suitable for coating systems greater than ? The minimum treatment for aluminum is Type B, Method 3 of Practices Dwhich describes the use of an alcoholic phosphoric acid cleaner. Magnetic thickness gage 6. The trigger of the gun should be released at the end of each stroke.
The technique is from dry to wet, with the coating applied to the surface and spread back to the wet edge of the previous strokes.
When ashm is not permitted, the coating may be heated. Webprint Printed and bound. Emulsions, cleaning compounds, steam cleaning, or similar methods and materials may also be used. Some coatings have maximum recoat times.
Current edition approved June 10, C Pictorial Standard Sa 2 shows mill scale and con?
ASTM D – 15e1 Standard Guide for Painting Inspectors (Metal Substrates)
Pressurized water alone will not remove mill scale efficiently, or impart an anchor pro? 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.
Their use and operation is presented in Practice D Comparison of Surface Preparation. Precautions should be taken that blasting equipment is operated properly 5. Methods for measuring surface pro? This can be veri? If the value is low compared to the paint speci? Dd3276 may also be necessary between coats of paint. A checklist for use in the?
Details of the many steps involved in proper coatings application should be recorded Section 4. It includes the key elements of surface preparation, coatings application, and final approval for both field and shop work.
The air supply for conventional and hot spray application should be free of moisture or oil. Vapor cleaning removes all soluble contaminants but does not disturb the natural oxide? It should be noted, however, that heating of the coating alone will not compensate for ambient or surface temperatures, or both, if they are below the minimum speci? Condition of edges, weld splatter 2. If necessary to remove grime and oil substances, they can be wiped, steam cleaned, power washed with detergents or cleaned with solvents selected so as not to soften the?
When a holiday is found, it should be marked, then wiped dry of any moisture to avoid telegraphing back to this holiday. Some coatings are considered dry for recoating when the next coat can be applied without the development of any detrimental? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.
During the inspection, also ensure that any oil or grease contamination that may have d3726 deposited on the surface is completely removed. In another method used primarily in fabricating shop, wheels propel the abrasive centrifugally against the work.
The coating should not be mixed or kept in suspension by means of an air stream bubbling under the coating surface. This type of gage destroys the?