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Acid Etching the Concrete Floor

9:37
51:52
47.7K views

At 9:37 in

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What happens here

Begin by putting on all necessary safety equipment, including safety glasses, a respirator with chemical filters, and solvent-resistant rubber gloves. Ensure the work area is well-ventilated; open garage doors and windows. Thoroughly wet the entire driveway and the garage floor with water using a garden hose and a pressure washer. This pre-wetting prevents the acid from soaking too deeply into the concrete and helps control spills. Prepare the pump sprayer by filling it with water and testing it. Carefully pour undiluted muriatic acid into the pump sprayer, being extremely cautious to avoid splashes. Once the acid is in the sprayer, add two pints of water to the pump sprayer. It is important to remember that the acid should be added to the water, not the other way around, to prevent violent reactions. Begin spraying the muriatic acid onto the concrete floor, working your way from the back of the garage to the front. Ensure the entire surface is evenly coated. After application, dilute the acid by spraying more water onto the floor with the garden hose, scrubbing with a floor brush, and flushing it out through the garage door until no yellow color or bubbling is visible, indicating the acid is no longer active. Rinse all equipment, boots, and gloves thoroughly. Use a turbo nozzle on the pressure washer to ensure all concrete dust and silt are removed from the pores of the concrete. Allow the floor to dry completely for a full day before proceeding to the next step.

Goal: Roughen and clean the concrete surface for optimal epoxy adhesion

Tools and materials

  • Chemical Filter Cartridges — Ensuring the respirator effectively filters chemical fumes
  • Floor Brush — Scrubbing the floor during rinsing
  • Garden Hose — Wetting the concrete and rinsing the acid
  • Pressure Washer — Thoroughly rinsing the floor and helping with etching
  • Pump Sprayer Deck & Home — Applying muriatic acid to the floor
  • Respirator Mask — Protecting lungs from acid fumes
  • Safety Glasses — Protecting eyes from chemical splashes
  • Solvent-Resistant Rubber Gloves — Protecting hands from acid
  • Turbo Nozzle — Enhancing the etching effect with the pressure washer
  • Muriatic Acid — Etching the concrete surface
  • Water Tap Water — Pre-wetting the floor, diluting acid, and rinsing

What they say

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floors it's the idaho painter in this video i'm going to be applying an epoxy to a concrete floor in a garage and we're going to show you the steps that it takes to actually apply your own epoxy in your own garage floor so stay tuned to this multi-step process so the first step of this process is actually going to be using a muratic acid to actually etch this floor to get it rough enough so your epoxy when it's applied and dried and cured it won't actually peel up off the floor and we're using a muratic acid a pump sprayer and some other tools to actually go through this process there's a multiple different ways you could actually prepare your concrete to actually accept the epoxy including sanding but i use a muratic acid i've been doing it for about 15 years and i've never had a call back on one of my floors actually peeling or pulling up so the process works for me and i'm going to show you this process right now there's a few tools that you're going to need and one of them some of the most important things are safety equipment i use a pair of clear goggles so i don't get any more moratic acid my eyes i use a safety mask which a chemical filter uh is on it i got a two gallon pump sprayer and then i got my muratic acid and then i got my hose set up out here with my power washer outside the garage ready to go okay i've got all my safety equipment with me got my power washer set up out here i got a hose i'm going to pre-wet all this concrete first before i start working in the garage in case there's any spills or anything that goes wrong so i want to have all this concrete wet out here and then i'm going to apply my acid in there i'm going to dilute it in the garage and then flush it out here and it'll all be completely diluted we'll just flush it right into the grass and we're getting ready to i started wetting this concrete down i'm going to continue wetting it down once i get this all wet i'm going to get my muratic acid loaded up my pump sprayer i'm gonna have this hose sitting right here in case anything goes wrong i have access to the hose so i'm gonna begin this process i'm gonna start adding some water to my pump sprayer getting that all ready and i'm gonna test my pump spreader out first before i actually start adding the muriatic acid into the spreader once i know my sprayer is functioning properly i'll be begin adding the acid i got my acid here all ready to go got my safety glove these are solvent rubber gloves right here definitely want to…

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