Rainbow Chalk Markers Ltd Grout Pen White Tile Grout Paint – Waterproof, 5mm Tip, 7mL, 3-Pack

Refresh worn grout in minutes with the Rainbow Chalk Markers Limited Grout Pen White Tile Grout Paint. This waterproof, non-toxic colorant lets you recolor grout to restore contrast and brighten tile lines, reducing the need for heavy scrubbing and giving you a cleaner looking space.

Designed for unsealed grout, the pen works well on bathrooms, kitchens, and other tile surfaces—walls, backsplashes, showers, tubs, and floors. The slim 5 mm tip enables precise lines on narrow joints, while each 7 mL pen covers a surprising amount of grout, making it practical for multiple projects in one go.

Why this grout pen can fit your maintenance routine

• Long-lasting color on thin 2 mm grout, with coverage up to roughly 150 feet per pen.
• Water-based colorant that refreshes grubby grout and helps it look renewed.
• Color reference via the color chart; the cap color indicates shade and a small test area is advised.
• Best used on unsealed grout; test water absorption to confirm suitability before full use.
• Tip is cotton and may wear with heavy pressure; replacement tips are available from the seller.
• Shake only with the cap on; activate by rapidly pumping the tip, or prime a dry tip before first use.

Tips for a clean, even finish

• Prep: start with clean, dry grout. If the grout is sealed, the pen may not bond; test a small spot first.
• Prime: keep the cap on and pump the tip 30+ times until saturated.
• Apply: use light, even strokes to color the grout; build up with thin coats as needed.
• Dry: allow the pigment to dry before exposing the area to moisture or routine cleaning.

Use cases include brightening a kitchen backsplash, restoring a shower grout line, or refreshing a bathroom floor grout. The 3-pack gives you consistent color across multiple zones, helping you achieve a refreshed, uniform look without a full regrouting.