marble & stone mosaic installation guide
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 as 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 and Taj Green Mosaic/stone tiles.
•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 presealing treatment, prior to grouting. Apply the sealer undiluted with a microfiber applicator or a dry absorbent white cloth, allowing a minimum of 2-4 hours before commencing grouting
•After grout haze removal has been done and the substrate is completely dry, it is ready for the final seal. Apply a coat of Spirit premium seal undiluted using a microfiber 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 4 mm V-notch trowel for small mosaics or 6 mm Square-notch trowel for large mosaics.
• Set tiles, apply pressure or tap the surfaces with a rubber grout float to ensure all tiles are bonded and aligned properly. Use a level periodically to check the grout joints.
• Mix and apply grout. For mosaic tiles with a metallic glaze finish use unsanded grout to prevent surface abrasion.
• Clean all excess grout immediately with a damp sponge.
• After 12 hours polish any remaining grout haze with a clean dry cloth.
CLEANING AND MAINTAINING
•Do not use abrasive cleaners or harsh chemicals.
•Use all-purpose cleaner recommended and safe for use on your mosaics/stone tiles.
DISCLAMER
No claim will be accepted after installation of the product. All tiling must be undertaken in accordance to AS 3958.1 “Guide to the installation of ceramic tiles”.