Thanks to SimpleMat’s no-mortar, no-mixing, no-mess convenience...you can grout immediately.
Grout your installation within 24 hours of setting tile over SimpleMat.
Apply grout to surface with grout float held at a 45° angle.
Spread grout firmly into joint to completely fill the joint.
Lightly clean off excess grout with sponge.
Remove grout haze with cheesecloth.