After feeling like having to wait forever for the concrete countertops to cure I was able to smooth out the bottom surface that was exposed since the counters are upside down when in the form. Now normally you wouldn’t have to do this but because I made a mistake calculating the amount of concrete I would need, I had to mix a different type of concrete to finish filling the concrete countertops.
What I needed to use to do this was an angle grinder, the one I used was a Black and Decker one that you can find from Amazon here, with a diamond cut grinding wheel I used this Dewalt one that you can find here from Amazon.
Since I was doing this in my living room and I wanted to keep my walls and floor from getting damaged, I also picked up a dust shroud to keep the dust down. This allows you to attach a shop vacuum to your grinder so that less dust gets everywhere. I used a Damo shroud which you can find on Amazon here.
It took a lot of work to make sure that I kept the grinder level and constantly moving to make sure I would have a flat smooth surface for the concrete countertops to sit on the cabinets.
After all the grinding was done I used a pry bar to remove the filler foam so that it was nice a clean. Then I used a hammer to tap off the walls of the form to free the concrete countertops from the form.
Just to get an idea of how the counters would look I picked up one of the smaller slabs and set it in place, I think they turned out really nice even without all the polishing that would be done next.
Make sure to read the next step here.
If you have any questions on anything that I did here or if I missed explaining something please post your question in the comments at the bottom of this page and I will do my best to answer them for you!
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