The following preparation must be done before application of SP-100™ grout:

• Clean the surface of the tiles and joints free of dust and debris with wet cloth or sponge. Remove spacers from the joints.
• Find out if the tiles were washed with acid based cleaners. If washed with acid based cleaners, wash the tiles again with plenty of clean water to remove any acidic remains in the joints.
• Don’t allow water to stand in the grout joints prior to grouting. Allow the joints to become dry.
• Check if all the tools and sufficient grout material is available for completion of job without any disturbance.
• Cordon off the area and don’t allow any traffic after cleaning the joints