Rainbow Chalk Markers Grout Pen Light Grey Tile Paint Marker – Waterproof, 3 Pack, 5mm Tip

Refresh tile grout in minutes

Rainbow Chalk Markers Grout Pen Light Grey offers a quick, paint-like approach to recolor and brighten grout lines. Instead of hours of scrubbing, you can apply a thin, even layer that lightly tints the grout to a refreshed, cohesive look across bathrooms, kitchens, and other tiled spaces. The light grey shade is designed to suit many grout bases and can help create a clean, modern feel without a dramatic color shift.

Made as a non-toxic, water-based colorant, the ink dries to a durable-looking finish on unsealed grout. It’s intended for everyday DIY projects and is built to cover grubby grout stains, helping tiles appear newer in appearance. A single pen carries enough pigment to treat up to 150 feet of 2 mm grout, which makes it suitable for both small touch ups and larger refreshes. For color accuracy, refer to the included color chart, and note that the cap color indicates the general shade family, while samples on a hidden area will reassure you about the match.

Where to use

This marker is well suited for bathrooms, kitchens, showers, backsplashes, and any area with wall, counter, or floor tiles that have grout lines. The slender 5 mm tip gives you control on narrow lines, while the 7 mL format is easy to hold for extended sessions of precise work.

How to get the best results

• Shake with cap on, then rapidly pump the tip to activate flow.
• Prime the tip if it's dry by pumping 30+ times until fully saturated.
• Apply to unsealed grout only; test a small area first to confirm bonding.
• Use the color chart to guide shade selection; the cap color indicates family, not exact shade.
• Avoid pressing too hard to protect the cotton tip and maintain a clean line.

With careful application, the Grout Pen Light Grey can offer a refreshed tile look without a heavy renovation. Results depend on grout condition and tile style, and this tool is best viewed as a helpful option for upkeep rather than a guaranteed transformation. If you’re preparing a weekend refresh, you’ll find this pen a convenient companion for small spaces or detailed grout work.