Reference Library : Videos : How to Install CUSTOM Cement Grout

How to Install CUSTOM Cement Grout

Video Transcript

The third step to a successful tile installation is choosing the right grout and installing it the right way.

We are going to show you how to install a cementitious grout, such as CUSTOM’s PolyBlend grouts which comes in a variety of colors. Complementary tile and grout colors will give you a uniform look. Contrasting colors will highlight the tile pattern. For ceramic or porcelain tile with grout joints from 1/8” up to ½”, choose PolyBlend sanded grout. For easily scratched tile, like glass or metal, or for grout joints smaller than 1/8”, use PolyBlend non-sanded grout. PloyBlend can be installed indoors or outdoors, including wet areas like showers.

Review the Technical Data sheet online for the most comprehensive details and coverage charts. Depending on your project, assemble the following tools and materials:
• 3-5 gallon bucket
• Fresh water
• Large measuring cup
• Grout float
• Grout sponge
• Microfiber towels
• Margin trowel
• Knee pads
• Dust mask and
• Impervious gloves, such as nitrile

Test a sample tile with the grout to ensure that the tile does not get scratched or stained. We recommend using a tile sealer or grout release product before grouting, especially on porous or textured tiles. This will help to ease grout clean up.
Follow all instructions on the mortar used to set your tile. Typically, tile must be set and the mortar cured for at least 24 hours prior to grouting. Remove any grout spacers and clean the tile surface with a lightly damp cloth. Start by adding clean, cool water to a bucket. The exact amount of water needed is shown on the back of the package. Add the contents of the bag or box to the water and mix by hand for 5 minutes. Allow the grout to slake for 10 minutes and then remix, but do NOT add any more water because it will discolor the grout.

Use a grout float to apply a small amount of grout to the tile. Hold the float at a 45 degree angle to push grout across the tiles and joints diagonally. This will force grout directly into the joints. Make sure that each grout joint is completely filled. Drag the float diagonally at a 90 degree angle to remove excess grout from the top of the tiles before grouting the next section. Do not grout more tile than you can clean within 30 minutes after application. Allow the grout to set up for 10-20 minutes once you’ve completed grouting your section. Grout joints should be firm to the touch.

Afterward, using a lightly damp grout sponge, begin to remove grout residue from the tile surface with a circular motion. Keep the grout joints full and rinse the sponge frequently. Make sure you are not adding any water to the surface or allowing water to collect or sit in the grout joints. Wait two hours, then buff any remaining residue from the tile with a microfiber towel or cheesecloth. Any initial grout haze can be removed with a clean, lightly damp grout sponge after three hours. Allow the grout to cure for at least 16 hours before allowing light traffic. All cementitious grouts are porous, so after three days, we recommend sealing the grout to protect it from staining. If any grout haze remains after the grout has fully cured, clean the tile with a grout haze remover. It can also be used to remove any salty looking crust, called efflorescence, that may appear in cement grouts.

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