Grout Pen Dark Grey Tile Paint Marker: Waterproof Tile Grout Colorant and Seale
USE ON UNSEALED GROUT ONLY: GROUT PEN may not bond to sealed grout. Compatible Grout Type For Use on Unsealed Grout Only For Use on Unsealed Grout Only For Use on Unsealed Grout Only For Use on Unsealed Grout Only For Use on Unsealed Grout Only For Use on Unsealed Grout Only For Use on Unsealed Grout Only.