Begin by seal the grout with the grout sealer.
Changing grout color from dark to light. This will remove any built up, oils, and old sealers from your. Continue to apply the bleach throughout the setup. How to change dark grout into a light color using polyblend from home depot
You can use regular or special grout paint as a grout darkener. You will also need to make sure that your grout is clean and free of any dirt or debris. I feel about brown the way holly golightly felt about tiffany's — nothing bad can happen to me in a brown room.
Using a small brush, apply the dye to the grout, making sure you follow the manufacturer’s instructions for the best finish. Grout is very permanent, and with a darker color, you're introducing a strong pattern that you may or may not like over time. Keep in mind that you can really only go from light to dark when changing color.
If you’re using a grout pen, use the pen to draw the grout onto. This is really the most important step. All you need to do is dilute the bleach, scrub away, and rinse it off.
Apply diluted bleach and scrub the grout with a rough bristle brush. The easier, less messy way to darken the grout is to colorseal the grout with a grout colorant. It’s virtually impossible to find a penetrating stain that will transform dark grout to a light color.
Select a color grout that. Once the sealer is dry, apply the grout dye or stain evenly. The first is the overall style of your bathroom.