In the following steps, an underlayer is laid on the plywood before proceeding with the installation of the ceramic. Many owners will tell you that this precaution is not mandatory. However, experts recommend the use of such a membrane, which increases the adhesion of the tiles while improving the impermeability and stability of the surface.
Using a foam roller, apply the primer (provided by the underlayment manufacturer) to the plywood. Let it dry.
Unroll the underlay on the counter and cut it roughly following the approximate shapes of the countertop. To do this, use an all-purpose knife. Remove the wax paper under the membrane and stick it on the plywood.
With an all-purpose knife, trim the excess membrane to fit the countertop perfectly. Make the necessary cuts around the sink and faucet holes.
Place the sink in the hole provided for this purpose. Draw the contours on the underlay to accurately determine the limits of the ceramic.
Place the chosen ceramic tiles on the countertop trying several layouts. Consider space for joints, favor symmetrical positioning and try to reduce losses by minimizing cuts. Then cut the required tiles with the cutting tool of your choice, depending on the layout chosen.
Spread a layer of thin-set mortar using the smooth side of the trowel. This first layer will penetrate the pores of the membrane and harden it.
Without waiting, apply a second layer of thin-set mortar, this time using the notched side of the trowel.
Start the installation by first installing the complete tiles, respecting the plan established previously. Be sure to create equal joints. Complete the surface by installing the tiles trimmed in Step 5. Allow to dry according to the time prescribed by the manufacturer.
Conceal the edges of the countertop by attaching a cut to size trim. Hold it in place with 1 "finishing nails.
For the application of epoxy grout, it is advisable to work in a team. As one person lays the grout into the joints, the other uses the float to spread it. Proceed in small sections so that the grout does not have time to dry.
Without delay, remove excess grout with an epoxy sponge. Rinse it often and try to clean the tiles thoroughly before the grout hardens. Let dry according to the time prescribed by the manufacturer before using the countertop.