Rainbow Chalk Markers Limited Grout Pen Grey – Waterproof Tile Marker, 2-Pack (7mL)

Refresh grout with a precision pen

The Grout Pen Grey from Rainbow Chalk Markers Limited brings a brighter, cleaner grout line to life without harsh scrubbing. This waterproof tile marker uses a non-toxic, water-based colorant designed to color and refresh grout between tiles. Pack includes two pens and extra tips, giving you ready-to-go coverage for larger spaces and future touch-ups, all in a compact 7mL size that fits easily in a stationery or toolkit.

The pen’s narrow 5mm tip helps you trace neat grout lines with confidence, while the cap color aids shade selection. A quick test area is recommended to ensure a close color match to your existing grout, as results can vary by grout type and original shade.

What you get and how it works

• 2-pack with extra tips keeps you stocked for bigger rooms and ongoing projects.
• Long-lasting ink can cover up to 150 feet of thin 2mm grout, reducing reapplication needs on sizable areas.
• Advanced non-toxic, water-based colorant delivers a refreshed grout appearance with minimal fumes or odor.
• Cap color guidance helps you pick the right shade; always test a small area first for best results.

Real-life uses and care tips

• Bathrooms, kitchens, and any tiled space benefit from a refreshed grout look around showers, backsplashes, and floors.
• Ideal for quick DIY grout renewal in niches, countertops, and rain-shielded tile edges where moisture is common.
• Designed for unsealed grout—if your grout beads water, a small test will help determine suitability before full use.

Tips for best results

• Shake with the cap on and prime the dry tip before first use to activate the color.
• Test on a hidden area to confirm shade match and grout compatibility before broader application.
• Allow the color to dry fully for an even, clean finish and to minimize smudging.

Note: Cap color may not perfectly match the shade shown in images. Results can vary by grout type and the original grout color. Follow all on-pack instructions for use on unsealed grout and tip maintenance.