How To Change Grout Color On Fireplace Ideas
How To Change Grout Color On Fireplace Ideas. They have a white color which could be put on the mortar first to offset the black coloring and then after that put the color on that you want the mortar to be. I used a stiff round craft brush for this step, dipped in warm water. Mix one part white vinegar and one part water in a bowl or bucket. Test a few samples of the mixture on a mortar board to determine if the mortar is the desired color before you apply it to your brick. Work the colorant forcefully into the grout, trying to avoid getting too much colorant onto the face of the tiles.