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ASTM D – 15e1 Standard Guide for Painting Inspectors (Metal Substrates)
Preparation for Inspection 4. The items should be selected that are pertinent to the specification of a particular job. The inspector should be familiar with the different kinds of spraying, which are compressed air spray, airless spray, airassisted airless spray, electrostatic spray, and high-volume low-pressure spray. Because the shop prime coat inspector may not be the person doing the? Brush or sheepskin daubers are used to coat all areas inaccessible to the spray gun and brushes are used to work coating into cracks, crevices, dd3276 blind spots that cannot be adequately spray painted.
If outdoor storage lasts for several months, the inspector should check the integrity of the coating from time to time and verify that de? Cleaning and Preparation of Various Surfaces. One kind of cutting device is described in If uncorrected, dry spray may create holidays, leading to poor performance, and it can interfere with adhesion of the applied or subsequent coat.
Blast cleaning is used to remove foreign materials from the surface to provide a roughened surface by means of a dry sand, grit, or shot blast impinging the surface with hard abrasive particles aztm by air 5.
Power Tool Cleaning to Bare Metal. Practice D d276 the procedure for evaluating adhesion of maintenance coatings. Edges and corners of all metal work, nut heads, bolts and nuts, and all individual members, bars, shapes, and plates should be striped by brush painting in advance of the application of coating to other parts.
A checklist for use by inspectors in the field is included in Appendix X1. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of d2376 limitations prior to use.
Lead pigmented primers should never be used over aluminum surfaces.
It is also useful at this point to mix or pour repeatedly from one container to another boxing until the composition is uniform. Surface Preparation Methods and Requirements 5. Portable Pull-Off Adhesion Testers. Aztm coatings have maximum recoat times.
In addition, crevices and small cracks should be thoroughly cleaned and spot-primed. Except for any shop coat touch-ups made necessary by welding, etc.
A general recommendation is that the surface pro?
Time from surface preparation to application 2. A checklist for use in the? 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? However, compliance with the speci? See Guide D for establishing procedures to certify inspectors for coatings work in nuclear facilities.
A request is submitted with these samples for advice on the proper thinning rate for the conditions prevailing and the consistency limits of the thinned coating. 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. All impact tools should be kept sharp. Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work.
Short nap rollers give a smoother? Dust and abrasive removal 2. This type of gage destroys the? Emulsions, cleaning compounds, steam cleaning, or similar methods and materials may also be used. If you feel that your comments asmt not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.