Marble and Stone Mosaic Installation Guide Installer’s Note Tiles are packaged back-to-back to protect the finished surface and to help ensure they are oriented correctly during installation.
General Dry lay your mosaic/stone tiles prior to installation. Any quality issues should be brought to our attention prior to fixing. Delivered product may vary from showroom samples; fixing of the product constitutes acceptance of the product. Please refer to National Tiles Customer Care Instructions.
Cutting Cut mosaics/stone tiles with a wet saw using a diamond blade. Cut mosaic/stone tiles slowly using multiple passes, increasing the depth with each pass.
Adhesive •
National Tiles recommends using Mapei Granirapid (White) Adhesive for Carrara Marble, White Marble, Blush, Ming Green mosaic/stone tiles.
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National Tiles recommends using Mapei Granirapid (Grey) Adhesive for Basalt and Grey mosaics and tiles.
Sealing •
Sealing of natural stone mosaics and tiles is required. This will protect the stone and grout joints against staining. National Tiles recommends that Spirit Premium Seal be applied as a pre-sealing treatment prior to grouting. Apply the sealer undiluted with a microfibre applicator or a dry, absorbent white cloth, allowing a minimum of 2–4 hours before commencing grouting.
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After grout haze removal has been completed and the substrate is completely dry, it is ready for the final seal. Apply a coat of Spirit Premium Seal undiluted using a microfibre applicator or a dry, absorbent white cloth. Allow approximately 1 hour for the first coat to dry, then apply a second coat. Any sealer that does not penetrate the surface should be wiped off within 5–10 minutes of application using a dry, absorbent cloth. It is important that no water comes into contact with the newly sealed tiles for at least 24 hours after application.
Grouting •
Apply a premium grade thin set mortar using a 4mm V-notch trowel for small mosaics or a 6mm Square-notch trowel for larger mosaics.
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Set tiles, applying pressure or tapping the surface with a rubber grout float to ensure all tiles are bonded and aligned properly. Use a level periodically to check the grout joints.
Marble and Stone Mosaic Installation Guide | 1