Note: Installation procedure should conform to ANSI A108.10 Standard recommendations.
Lightly dampen unglazed or mat tile with clean, cool water but leave no standing water in the open joint space. With a rigid sharp-edge rubber float held at a 45° angle, force grout diagonally into the joint, ensuring that the grout is well-compacted, free of voids and pin holes. Remove excess grout through successive diagonal passes using the edge of the rubber float held at a sharp 90° angle. The grout should be finished evenly to the base of the cushion or bevelled edge. Allow grout to become firm enough to only be slightly indented when pushed or approximately 15 to 30 minutes depending on the type of tile or stone and ambient temperature and humidity conditions.
Use as little water as possible during cleanup of the grout residue on the tiles. An excess amount of water used for mixing or cleaning causes weakening, shrinkage, efflorescence, pin holes and colour variation of the grouted joints. Smooth and level joints and remove excess grout from tile or stone with a slightly damp, but not wet, using a soft closed pore cellulose sponge, wiping lightly and delicately in diagonal strokes.
Do not use acid wash
Change water and rinse sponge frequently. Keeping the water and sponge clean will achieve better joint colour uniformity.
Wait at least 18 hours before removing the final haze from the tile. Removal of the dry grout haze from tile surface using a microfiber.
WAITING TIME BEFORE ALLOWING TRAFFIC
rotect the surface from impact and vibration for at least 24 hours. For proper curing, the temperature of the substrate or tiles must be at least 10°C (50°F) during the curing period of SikaTile®-800 Unsanded Grout (CA).
Protect grouted area for at least 18 hours before allowing pedestrian traffic and at least 72 hours before allowing general traffic, depending on temperature and humidity. If necessary, use load-distributing protection when moving heavy equipment over the tiled area for at least 7 days.
Note: Extended protection and downtime requirements before grouting may be required depending on temperature and humidity conditions and on the porosity and size of the tile or stone being installed.
EXPANSION AND CONTROL JOINTS
Install control joints where tiles abut restraining surfaces, around the perimeter of the work and at the base of columns and curbs. Install and space expansion and control joints in all directions in accordance with TTMAC Specification Guide 09 30 00 Detail #301-MJ recommendations.
CAUTION: Do not cout expansion joints in after the tiles have been installed. Install tiles normally and stop when the control joint location is reached. Cut the tile if required and resume setting from the opposite side of the joint. Before proceeding further, rake the joint and leave the tile and joint space clean. Do not fill expansion joint space after tiling is completed on the remainder of the job. Install a suitable industry-approved compressible bead and flexible sealant to caulk expansion and control joints.
PROTECTING NEW TILE WORK
The constructor is responsible to ensure that the structural and installation criteria as provided by the tile or stone installer can be respected. This includes allocation and provision of proper installation and protection environments needed after the installation, as well as respecting cure times before exposing the installation to work from other trades. (TTMAC’s Specification Guide 09 30 00 Tile Installation Manual).