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ASTM D – 15e1 Standard Guide for Painting Inspectors (Metal Substrates)
If the coat being measured has an appreciable softening effect on the previous coat, a wet-? For large jobs it is recommended that before work starts, an actual steel sample of adequate size be blasted to the satisfaction of the project engineer.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Hand tool cleaning in accordance with 5. Available from Materials manufacturer. Coarser abrasives generally produce a coarser and deeper pro?
The standard is used by the inspector to assist in determining whether the degree of surface preparation speci? Most obvious is noncompliance with the speci? Therefore their use is generally restricted to rougher surfaces such as the substrate and faster drying coatings. The part to be cleaned is placed in the saturated vapor above the heated solvent so that the solvent vapor condenses on the metal surface.
Scrapers should be kept sharp at all times.
ASTM D – 07 Standard Guide for Painting Inspectors (Metal Substrates)
Where there is noticeable settling, and mixing is done either by power agitators or by hand, most of the vehicle should be poured off into a clean container.
All runs, sags, or curtains should be brushed out immediately or sanded out if the coating has cured. Reblasting will be necessary on any surface if rust bloom forms before coating can be applied. Film defects, voids, etc. Inhibitors may be added to the water to prevent? They allow moisture to penetrate r3276 the substrate.
Surrounding air cleanliness 7. With nondestructive measuring instruments a m ft long and 1. SSPC issues detailed surface preparation speci? Washing may also be necessary between coats of paint. Astmm solvent is applied to the surface by wiping or scrubbing with rags or brushes.
Type and size abrasive 2. Many materials if not removed from the surface will affect the life of the coating. Test the compressed air supply in accordance with Test Method D 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.
This blasted surface should be protected by a clear acrylic coating or encased in plastic and used for reference purposes as the work progresses. Where emulsion cleaners, soaps, or detergents are used, they should be removed completely by washing with clean hot water.
Some materials may even require 0 agitation during use. Film thickness measurements are more informative than visual aastm, which may show only obvious nonuniform application. This service is not available if you are a URL user where you do not log in with an email address.
Last previous edition D — Sieve analysis and visual observation 2. Test Methods D describe the procedure for using magnetic gages. 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 impelled by air 5.
Special attention should be placed on examining hard to reach areas, the back side of nuts and bolts, sides of members in close proximity to other members or walls, and undersides of members.
The tape is measured in the? Compressed air check 5. The inspector should prohibit the use of any brush not in an acceptable condition. Recoat Times observed The inspector should examine these materials and be supplied with appropriate protective equipment and devices. High-pressure water blasting is often used to remove these contaminants. Should the contractor wish to reduce the viscosity by heating, to make application easier, the containers may be warmed in hot water, on steam radiators, by storing in a warm room, or by other acceptable indirect heating processes.
Surface cleaning power tools consist of non-woven abrasive wheels and discs, coated abrasive discs or sanding pads, coated abrasive? Vapor degreasing or immersion in an alkaline or acid cleaning solution are commonly used in shop work. This standard does not purport 70 address all of the safety concerns, if any, associated with its use.
Minimum temperatures are required for reactive and water-borne coatings while too high a temperature can make application difficult or cause? Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition.
Because the shop prime coat inspector may not be the person doing wstm To keep the temperature down it may be desirable, where practical, to paint under cover at a shop or to 70 the surface from the sun with tarpaulins, or schedule painting operations to avoid seasonal or daily high temperatures.
For example, a ? Nondestructive Film Thickness Gages. Any thin spots or areas missed in the application should be repainted and permitted to c3276 before the next coat is applied.