Hands-on Ardex Concrete Counters, step by step

So we did it. We concrete’d our kitchen’s laminate counters. Sherry shared this swift peek at our first coat in Friday’s post, and we are back with the final results, the details of how we got there, and an in-action video to hopefully assist explain the process.

We are truly glad with how they turned out. Pictures do not do it justice, but the whole room feels a lot more updated and less laminate-y. It is giving off kind of a stark/cold vibe in these photos, but after we add some colorful window treatments, stuff on the shelves/counters, and remedy that bad faux brick flooring (and that almond stove) we think it’ll feel like a whole new room.

I am not going to sugar coat it, though. It was a lot of work. And a lot of dust.

Here is a reminder of what the counters looked like before. We had creamy-yellow laminate (with the occasional burn mark or scratch). In addition to the main kitchen area, we also gave the concrete treatment to the nearby nook by the eat-in part of the kitchen. We have not sealed the counters yet (we have not been able to track down either of the two products that our research points to using), so the color will likely get a bit deeper after that step.

We did this using Ardex Feather Finish, which we have been truly interested in trying since seeing a few other attempts like these from Kara Paslay, Little Green Notebook, Sarah’s Big Idea, and A Striking Mess. Somewhere between all of their fairly pictures and the low price tag for Ardex ($19 per bag) I had assumed this would be a swift and straightforward task. Oh silly me…

Perhaps it was because we are first timers, or perhaps it was because our work area was especially large (we were dealing with 45 square feet of counters thanks to the U-shaped area in the cooking zone and the nook area by the table), but it turned out to be a tiring and messy job that spanned across five days. It was not quite complicated or difficult, simply more labor and time intensive than we realized we were getting ourselves into. So let us dive into the process. Forgive our photos for not being chronological. We took a bunch throughout our four rounds of applying/sanding the Ardex and I am simply using the ones that are most helpful. Let us begin with supplies!

1. Ardex Feather Finish, obviously. It is not straightforward to come by, but you can hunt for a local distributor on their site or simply follow this affiliate link to get it on Amazon. We ended up using 2.5 bags, though I think we applied it a bit thicker than necessary.
2. Mixing buckets: We used one of these small red buckets for mixing our Ardex (it mixes with water). We made fairly small batches, so this was a strong size.
3. Measuring buckets: We used these (one for water, one for Ardex powder) to make sure we were mixing the right ratio in our red bucket.
4. Sandpaper: A variety of grits – both high and low, as well as a sanding block for straightforward gripping. We used mostly 60, 120, and 220 grit.
5. Spreading tools: We used the flat trowel (on right) for mixing in the bucket, then used the other three for spreading. The big 10″ drywall knife was good for big flat areas, the 4″ putty knife was strong for backsplash and edges, while the small guy helped us get into tight spots, like around the sink.
6. Stuff for keeping walls clean: We kept a sponge and paper towels on hand to clean up any drips or splatters on the wall. We also taped off some areas too (more on that later).
7. Protective gear: During the sanding process the glasses and dust mask helped keep stuff out of our faces (Sherry preferred our heavy duty respirator) while the gloves were strong for keeping our fingers from getting crazy raw.

Speaking of sanding… the first step was to rough up the existing counters with some high grit sandpaper. This was before we realized our fingers would be taking a beating from all of the sandpaper gripping. We wised up and brought in gloves and used pleasant big sanding blocks wrapped in high grit paper about ten minutes into it. It went much easier after that.

The Ardex bag suggests a mixture of 2-parts powder to 1-part water, but we found that balance to be a little bit on the thick side – making it hard to spread and what we believe led to our first layer being, well, on the thick side too. So we erred on the side of a bit more water from that point on.

Like grout or thinset, the goal seems to be a toothpaste-like consistency. Thick sufficient that it does not run or drip off your blade, but thin sufficient to spread easily. If you are mixing larger batches it suggests a paddle mixer, but we did simply fine by hand (Sherry took a turn mixing things too and did not have any issues doing it by hand). Since it starts to harden within about 15-20 minutes, we never hoped to mix up too much at once anyway.

Spreading it on the flat surfaces was kinda lively, in a weird way. It was like icing a giant cake and using a big 10″ blade made it fairly fast to get the big areas covered. The backsplash was another story, but we will get to that in a second.

Here is a swift video Sherry took of me applying the third coat, since we thought it’d helpful for you to see the stuff in action. I am not claiming my technique to be strong or anything, but we did find we got a bit better each round (Sherry also thought we got better at sanding/smoothing each layer as we went). Which is good news because your first couple of layers will get covered up anyways – so they are kind of like low-risk practice rounds.

When it came to doing the sides, we switched to a smaller putty knife. We typically did these after we had applied most of our mixture to the top, that way what was left in the bucket had set a bit more and was less likely to slide off the vertical surface.

At first we found the edges to be challenging since it was straightforward for stuff to build up there. What we realized a couple of rounds in was that after about 20 minutes the Ardex had hardened to an nearly clay-like consistency, and Sherry or I could come back and smooth the edges with a damp finger. My go-to part was sneaking up behind Sherry all Ghost-style to smooth them from behind her back. Who says there is no romance in Hands-on?

Here is our first round after it dried. You can see Sherry taped off the wall to protect it when I lamented how much was getting on them as I went. In hindsight we are still unsure whether that ended up being a smart decision. It certainly made us less paranoid about being messy as we went, but removal was a bit of a pain and not ideal since we were essentially concrete-ing the tape to the wall in a few spots.

We chose to ditch the tape after our second round of counter smoothing, so we slowly worked our way around the room peeling it off (we feared that too much concrete build-up would trap the tape in place forever). One thing that we found during this process was that pulling it down from the top (rather than ripping it to the side like we do after painting) did a better job of getting a clean edge and not simply tearing the tape. But we did have to chisel it free in a few areas… so I am not sure if it was a time saver in the end.

Things looked fairly rough after our first round (well, after every round in fact). But that is where the lively mess begins: the sanding step. Here is where you smooth out any rough spots or ridges so that the next layer can go on evenly and ultimately get you to a flat, smooth finish.

After letting the surface dry overnight, first Sherry would go across the top with a putty knife and scrape off any obvious ridges that were left by the drywall knife during the Ardex application. Even though it had hardened, it was not tough to do. Blobs and ridges simply popped right off as she scraped back and forth over them.

The most satisfying thing was cleaning off the bottom edge. Sherry realized we could simply run our smaller putty knife along those and sheer off any irregularities, which left us with an awesomely crisp line on the bottom. Best part of this project by far. Could’ve done it all day.

That step was swiftly followed by our least go-to part: sanding, sanding, and more sanding. We chose to do it all by hand, since we feared that our power sander would simply sand everything down to the laminate again (or leave rough ridges or marks as it traveled around the counter). Plus, with all of the tight spots like the backsplash and around the sink, we figured it would be easier to maneuver by hand.

We used a sanding block (for straightforward grip) wrapped in fresh sandpaper each time. For sanding every layer except for the last one we used a truly rough 60-grit paper to make smoothing ridges and rough spots straightforward, but after the last coat of Ardex (we did four coats) was all smoothed on and dry, we switched to 220-grit paper to make sure we did not leave big/rough scratches in that top coat of concrete.

Sherry also realized that it was helpful for us to pause while sanding each section to vacuum off the excess dust as we went (thanks shop vac!). This was especially helpful because sometimes the dust would disguise an area that needed a bit more sanding. Plus, it simply helped for sanity reasons, since we felt like we were keeping the mess more contained that way.

Speaking of which, the mess was the biggest surprise to us. Despite reading other people’s experiences with it (and obviously, we knew sanding was involved), I do not think either of us had mentally prepared for the fact that there’d be a fine gray build-up of powder EVERYWHERE. And since the kitchen is such a central and highly traffic area of our house, keeping it clean ended up being a big time suck (after each round we would sweep, then vacuum, and then mop the floors to be sure nobody tracked anything throughout the house when they passed through over the five days that we worked on it).

After our first coat, we noticed the laminate was peeking through in a few spots after our initial sanding step – mostly on edges where it is truly straightforward to scrape everything off if you are not careful. But that is one reason you do multiple coats, so we were not too panicked.

Here you can see a second coat beginning to get applied over the first. Note the difference in color between the wet Ardex vs. the lighter stuff (that is how it dries). We in fact think once we seal it, it’ll get closer to the wet color though, so that should be interesting to see.

Here is a shot of our final counters (well, pre-sealing). You can see it is still not ideal, which everyone notes is one of the charms of this Ardex technique. You get that sort of imperfect, industrial look, but it certainly feels more solid & stone-like (as opposed to plastic-y like laminate).

I will admit that I had to come around to the idea of appreciating the flaws of the finish. Sherry was immediately charmed by it, but the perfectionist in me resented the fact that this type of project does not yield perfectly uniform results. I think once we seal it I will appreciate it even more (that will darken it a little and remove the chalky finish in favor of a more polished look) so I am truly looking forward to that.

By far the hardest area to get smooth was the backsplash, simply because it was a small area that was difficult to reach and seemingly made up entirely of edges and corners. So both applying the Ardex and sanding it was challenging and required a bit of body contorting on my part (lucky Sherry was too pregnant to reach it in most areas thanks to her belly being in the way, which had me slightly envious by the end of this process).

Another tough spot was around the sink. If this were our “forever” counter, I would’ve gone through the trouble of removing the sink, but we have some old copper pipes that are fairly much corroded together down there (which would mean bringing in a plumber to switch this out). So we opted to save that for Phase 2 of our kitchen update and simply taped / sanded around it. The results were in fact better than I expected.

Challenges and flaws aside, we are glad with the overall improvement to the space. It feels good to rid the kitchen of another old yellowed surface and make the room feel a bit more updated. Simply cover the floor with your hand and squint – ok?

And although the time that we spent on this update was longer than we envisioned (likely around 15 hours spread across five days, including prep and clean-up) the cost was still fairly fantastic. The three bags of Ardex (again, we only needed 2.5 to do four coats) cost $57 in total – and we likely spent another $20 in buckets and sandpaper. So for 45 square feet of countertops, we paid simply $1.71 per square foot to update it – which is fairly hard to beat.

That does not include the sealer though, which is next on our list. We have read a ton of sealer reviews since it seems that the wrong sealer can cause more scratches, stains, and even issues like bubbling down the line – so we want to get it right. The two most highly recommended products seem to be Ardex Clear Concrete Guard High Performance Sealer and GST International Satin Seal Water Based Acrylic Sealer. Does anyone out there have a preference between the two? We cannot find either of them locally so we are going to have to order one of them online and wait for it to come, but we will certainly share what we end up going with, how it goes on, and what it does to change this finish – as well as updating you folks on how these counters end up wearing for us over time.

Update: You can check out what we used to seal them here, and read an update on how they are holding up here.

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