May 5, 2025 · Concrete that hasn't been treated in any way after being poured can be too hard and smooth to accept paint or protective sealants. However, etching (or washing) concrete …

What is “Acid Etching Concrete”? Acid etching is the process of applying hydrochloric/muriatic or buffered phosphoric acid to a slab, then rinsing it off with water.

Dec 3, 2021 · Here, we provide an overview of how to etch concrete (also known as acid washing). To reiterate an important point: Before you begin the etching process, be sure to …

Jul 20, 2025 · Acid etching uses chemicals, most often muriatic acid (diluted hydrochloric acid), to react with lime in the concrete. This chemical reaction slightly dissolves the top layer, revealing …

Most DIYers use muriatic acid for etching concrete. This acid removes old paint, grease, and dirt, creating a surface ready for paint. A mixture of one part acid to three parts water does the …

Acid etching is a method of removing laitance from the concrete surface to expose the colour and texture of the matrix beneath. Hydrochloric acid is used, either in diluted form or as a gel.

Apr 23, 2021 · Concrete etching is the process of applying an acid and water solution to a concrete floor in order to roughen the surface of the concrete. The acid wash opens pores in …

Mar 17, 2025 · Acid washing, also known as acid etching, prepares a concrete surface to accept a sealer. You can also use acid in weaker concentrations to remove white mineral deposits …

Jul 31, 2025 · Prep and clean the area, put on PPE, and mix and apply etching according to your instructions. Rinse it off, neutralize it, and let it dry. Here’s how to etch concrete, chemically or …

Dec 24, 2025 · Apply the acid solution: Use the 2 gallon plastic watering container to sprinkle the acid solution on the concrete. This will spread the solution evenly without much splashing. Do …