Repair Surface Defects

Related Links:

Why Concrete Surfaces Are Prepared

Start at the End if You Want a Good Floor Coating or Decorative Overlay Job

Know the Job Specifications

Examine the Surface

Clean the Concrete

Roughen of "Profile" the Surface

Repair Surface Defects

Standards You Should Know About (ACI 503R, ASTM 4263, ASTM 4260)

What is Anchor Profile and Profile Height?

When Job Specifications and Manufacturers Specifications Differ

What Surface Condition Specifications Should Cover

Sometimes Surface Preparation and Coating Installer are Different Companies

Non-Breathable Coating Caveat

What About Acid Etching for Surface Preparation?

Architects, Engineers, Property Owners, and Other Important People: Job Planning

First, get the specifications from the coating or overlay manufacturer for repair materials to be used under the coating for material compatibility.

Grind or chip all projections from the concrete greater than 1/16 "

Remove unstable concrete, and clean and fill holes or cracks, and other surface defects with an approved material. Understand if the patch should be roughened or smooth, and how long they need to cure before being covered.

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