Part 2 Of Counter Tops Fabricated In The Workshop

Part 2 of Counter Tops

Step-by-Step Guide to Fabricate In A Workshop Your Polished Concrete Countertops

Part 2 of counter tops involves creating polished concrete countertops by fabricating separately involves several of the same processes, but different skills are needed. First, you’ll need a large, flat workbench big enough to accommodate the largest piece of your countertops—think garage or workshop.

The next part is where many people might make mistakes, so take your time to go through this process. To be as accurate as possible it is best to make templates that reflect your soon-to-be-new polished concrete countertops. The best way to approach this is with 3-4″ wide strips of ¼” plywood, a glue gun and an indelible Sharpie pen.  Take these strips and your glue gun and lay these strips to follow your walls and cabinets, Including any overhanging edges where your new tops will need to end and keep them flush where needed for the range, refrigerator or even maybe side walls.

Part 2 Of Counter Tops & Templating

Cut your plywood strips as required as you go with a utility knife. Then glue all your pieces together at the corners or other joints. Sometimes you may need extra strips front to back for just a little extra strength when you move them to your workshop area. Then start marking which is the back, the front and “this way up” for the top. Continue to mark which parts must have the squared edges and which edges have your custom edge detail of choice.

Next mark where any cutouts for sinks etc need to be, this will help so much to avoid mistakes later. If you do have a particular large piece of kitchen top to make you may have to add an extra length of batten to allow you just to transport your template to your work area. Once everything is marked, and the glue is all set, it’s time to move the templates onto the workbench which also doubles as the pouring table, the table/bench top will be the surface of the new tops.

Copying Your Templates To Make Your Polished Concrete Countertops

Now it’s time to tip your templates upside down. But as you do this transfer all your makings to the other side too. Because now the top becomes the bottom, you are mirroring your templates. Hopefully, you have enough space on your workbench to accommodate all the pieces as it is best to just create the one mix. Now accurately draw around your templates so you are ready to start forming the sides to your molds.

Now it’s time to start positioning the sides to your molds. Start with your back edges and any square sides, and make sure whatever material you use is the right thickness for your tops. Depending on what your workbench is made of determines how you fix your edge details in place. Screws, glues or grab adhesives, but whatever you use keep the top edges clear for screeding and trowelling.

A very important part if you are using any inlaid edge details, as shown in the picture above. To add the extra space/depth needed to accommodate them. They all vary so check them out and set these to finish on your template’s finished line. So now all your perimeters are in place, make sure they are 100% sealed to the surface of your workbench. Then check any joints or corners to make sure they are sealed too. This will stop any bleeding out of the mix.

Positioning Any Blockouts

Moving on to the next stage of your polished concrete countertops it’s time to form up any blockouts for the sinks, cooktops, taps etc. If your new sink(s) are going to be undermounts then all the edges will be visible so take care to use a suitable material to leave a good edge and make sure that the positions are correct. Before you move on to the next task check with your templates, still upside down that they fit exactly. If everything is good then move on to applying the release agent liberally. Remember, as you are going to be grinding your polished concrete countertops any slight imperfections will be taken out with the process.

In Part 2 of Counter Tops, Adding Your Embellishments

Because with this method you are making your tops upside down, you can now place/sprinkle into position your colored aggregates, semi-precious stones, colored glass or other creative ideas, just nothing big or flat as it could leave voids in your concrete pour. Embedding items like stones, shells, or glass adds a personalized touch. You can lay these items in the mold before pouring the concrete. Once set and finished, these embedded objects create a unique, pattern or style that’s impossible to imitate with any other material.

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Adding Reinforcing To Your Polished Concrete Countertops

If there are any narrow strips of tops at places like the sinks and cooktops then adding some 3/8ths high tensile rebar might be a good idea, fiberglass rebar has too much flexural movement for this task, I would also use some of the same material if you are making extra long or large pieces. Keep all of these pre-bent and cut steels to one side until you have poured the bottom of your concrete. Follow this link to the 1st post on poured-in-place countertops for mixing

Now it’s time to follow the same procedures for mixing, curing & polishing. And then the resin coating as the poured-in-place polished concrete countertops, with one major difference. In part 2 of counter tops the transporting and fixing in place of the tops. First a plywood sub-base should be glued and screwed in place. And then levelled with a laser, ready to receive your new tops. Just double-check that nothing has changed. Take your templates back in the original way up and double-check, before you put all the effort into moving them. If all is well make sure you have at least one extra person. This person can be applying the adhesive to the plywood. But also as you come through with the team moving the pieces moving anything missed earlier out of the way.

Gently set them in place, caulk as required and think about your backsplashes and fitting all your appliances, if there have been any minor scratches either buff out any minor ones or worst case recoat with a thin layer of resin

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Author Rob