Significance and Use
This practice is used to prepare concrete for coatings where optimum bond is desired for service conditions such as continuous or intermittent immersion, temperature cycling, or mechanical loading.
1. Scope
1.1 This practice covers surface preparation of concrete to prepare the surface prior to the application of coatings.
1.2 This practice is intended to alter the surface profile of the concrete and to remove foreign materials and weak surface laitance.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. For specific hazard statements, see Section 6.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D4258 Practice for Surface Cleaning Concrete for Coating
D4259 Practice for Abrading Concrete
D4262 Test Method for pH of Chemically Cleaned or Etched Concrete Surfaces
D4263 Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method
D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
Other Standard
ACI-308 Recommended Practice for Curing Concrete
Keywords
concrete; gelled; gelled acid etching; laitance; liquid; liquid acid etching; surface preparation; thixotropic; viscosity; Acid etching; Concrete paint applications; Etching (materials/process); Laitance; Nuclear reactor vessels--coatings applications; Specimen preparation (for testing)--paints/related coatings; Surface preparation
ICS Code
ICS Number Code 91.080.40 (Concrete structures)
DOI: 10.1520/D4260-05R12
ASTM International is a member of CrossRef.
Citing ASTM Standards
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