ASTM D4258 PDF

This standard is issued under the fixed designation D ; the number 1 This practice is under the jurisdiction of ASTM Committee D on Protective. ASTM D Standard Practice for Surface Cleaning Concrete for Coating. ASTM D (Plastic sheet test): Place plastic sheet on concrete stab for 24 hours. o ASTM-D Standard Practice for Surface Cleaning Concrete for.

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Brush Blasting or Sweep Blasting Includes dry blasting, water blasting, water blasting with abrasives, and vacuum blasting with abrasives. Ensure that the surface is clean and free of any loose stucco, and that surface pH is between 6 and 9. The steps below are provided for assistance in properly preparing various common substrates before coating.

Subscription pricing is determined by: Standards Subsctiption may be the perfect solution. Tape and cover joints with a joint compound. Profiled Increasing the surface area of the substrate by imparting a profile with some tooth gives lining systems more to grab on to. Concrete curing compounds, hardeners, and form release agents may not be compatible with recommended coatings. If the surface is new, test it for pH, many times the pH may be 10 or higher. High-pressure water blasting is commonly used to clean substrates.

Sand surfaces smooth, taking care to sand with the grain.

This method is suitable for removal of all visible oil, drawing and cutting compounds, grease, soil, and other soluble contaminants. When viewed without magnification, a metallic surface prepared according to this specification should be free of any visible grease, oil, dust, dirt, mill scale, paint, rust, oxides, corrosion products, and other foreign matter.

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Use an appropriate primer to spot prime any bare ares. When weathering is not possible atm the surface has been treated with chromates or silicates, first Solvent Clean per SSPC-SP1 and apply a test area, priming as required.

Visible deposits of grease or oil must be removed prior to power tool surface preparation by any method specified in SSPC-SP 1, Solvent Cleaning, or other agreed upon methods. As critical as these steps are, it should come as no surprise that there is a wealth of technical standards available from organizations such as NACEASTMand SSPC which address many aspects of steel and concrete surface preparation.

To avoid premature lining failures resulting from improper surface preparation, lining d42258, applicators, and inspectors need to be familiar with these industry standards for surface preparation and to adhere to their principles in practice.

Adherent mill scale, paint, and rust are not able to be removed by this process.

ASTM D4258 – 05(2017)

If necessary, pressure clean with a minimum of psi to remove all dirt, dust, oil, grease, laitance, loose particles, foreign material, and peeling or defective coatings. Rinse thoroughly and allow to dry. Patch all nail holes and imperfections with a wood filler or putty and sand smooth.

Plan accordingly to handle the runoff. Already Subscribed to this document. Surface preparation methods as outlined in ASTM D are required if the coating system is incompatible.

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Vacuum cleaning, broom cleaning, water cleaning, air blast cleaning, and steam cleaning are suitable as outlined in ASTM D Check for compatibility by applying a test patch of the recommended coating system, covering at least 2 to 3 square feet.

Bare plaster must be cured and hard before application. This standard is also available to be included in Standards Subscriptions. Established by the Steel Structures Council inthese methods are used throughout the world for describing methods for cleaning structural steel.

Standard – Standard Practice for Surface Cleaning Concrete for Coating ASTM D –

Thorough washing with an abrasive cleanser will clean and dull in one operation, or, wash thoroughly and dull by sanding. Mill scale, paint, and rust that is tightly adhered to e4258 surface may remain even after Brush-Off Blast Cleaning. Mill scale and rust cannot be removed by solvent cleaning.

Drywall should be clean and dry.

Rooms must be heated in cold, damp weather. Procedures include broom cleaning, vacuum cleaning, air blast cleaning, water cleaning, detergent water cleaning, and steam cleaning. The room must be ventilated while drying.

ast, Wipe off the dust. Allow the surface to dry thoroughly. Rinse with clear water and allow to dry. Surface Preparation Proper surface preparation can improve the outcome of your coating system.