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  • Chargrove217 commented on bkr1969's instructable Basic Concrete Countertop3 months ago
    Basic Concrete Countertop

    Nice job! I haven't done a counter yet but I've worked with concrete (professionally) quite a bit and I'd just like to note two things -Wear gloves! The nitrile rubber ones work well, but anything is better than nothing. Concrete will jack your skin up.You also mentioned something about pulling the form sides off to allow the concrete to dry more fully. Concrete actually cures as a chemical reaction with water, not like paint which dries by evaporation, so that's actually not necessary. Unless you're going to try to finish the edges, leave the forms on. You will actually notice the concrete pull away from the form slightly when it's well cured (wait at least a week for a project like this) and the forms should come off really easily. You could also paint or prime the particle board edge...see more »Nice job! I haven't done a counter yet but I've worked with concrete (professionally) quite a bit and I'd just like to note two things -Wear gloves! The nitrile rubber ones work well, but anything is better than nothing. Concrete will jack your skin up.You also mentioned something about pulling the form sides off to allow the concrete to dry more fully. Concrete actually cures as a chemical reaction with water, not like paint which dries by evaporation, so that's actually not necessary. Unless you're going to try to finish the edges, leave the forms on. You will actually notice the concrete pull away from the form slightly when it's well cured (wait at least a week for a project like this) and the forms should come off really easily. You could also paint or prime the particle board edges if you wanted to reuse them.

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