How To Etch Concrete Floor

The concrete must remain damp during the etching process.

How to etch concrete floor.

Proper concrete etching is a requirement for all sani tred floor installations on the original surface. Dampen the surface to be etched with clean water. Hose down the entire area you are going to be etching. The concrete should be uniformly wet.

The procedure for how to acid etch concrete must be followed exactly as specified below for proper installation. Apply the mixture to a small area of concrete. Both types of acids can remove rust from concrete flooring. Don t skip this step if you want a long lasting painted concrete floor.

For many years it was a standard method of concrete preparation used by nearly all industrial commercial and institutional floor coating installers depending on the floor size and system to be installed. Professionals recommend testing the strength needed on one area before applying it on the entire garage floor. Mixing acid etch instructions the concentrated acid solution must be diluted with water prior to use. Test with a 5 1 ratio in your water can.

Acid etching is the process of neutralizing a concrete surface through the use of muriatic or phosphoric acid. The acid is applied on the concrete and then rinsed off with water. Use a sprayer or watering can to evenly distribute that acid and let it sit for 2 15 minutes or until it stops bubbling. The objective of acid etching is to dissolve the weak surface layer known as laitance and open the pores to allow penetration of the sealer coat.

How to acid etch concrete acid etching instructions. If your concrete oil grease on the floor use a cleaner degreaser a few times and then follow the etching directions. When you acid etch concrete wear long sleeves gloves eye protection and a face mask to protect yourself from stray acid. Oil or grease stained floors.

This has been the standard method for preparing the concrete slab for a coating or overlay. Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water. Mix 1 part acid to 3 parts water for sufficient strength. Remove oil stains using a powerful degreaser such as seal krete oil stain remover.

Paint will not stick to oily concrete so be sure that any grease and oil stains are cleaned as thoroughly as possible. Then mix 3 or 4 parts water with 1 part muriatic or hydrochloric acid in a plastic bucket. Remove all furniture equipment and objects from the concrete floor you are going to be etching sweep up or shop vacuum any dust and dirt. Power wash concrete and make sure it is free from dirt dust and debris.

To prevent dry spots divide a large surface into smaller areas and etch them one at a time. Remove all oils and greases prior to etching this can be done by using a degreaser laundry detergent or dawn concentrated dish soap. Sand blasting captive ball blast or scarifying the concrete floor surface is always preferable to acid etching when ever. Avoid puddles or dry spots.