Grout Pen Black Tile Paint Marker – Waterproof Grout Paint, Colorant & Sealer (7mL) 3 Pack | Rainbow Chalk Markers Limited

Refresh grout without heavy scrubbing

Meet the Grout Pen Black Tile Paint Marker from Rainbow Chalk Markers Limited—a water-based, non-toxic colorant designed to revive worn grout. A single stroke delivers a clean, uniform line that can dramatically brighten tile joints. The slim 5 mm tip offers precise control for tight gaps, while the 7 mL capacity supports multiple rooms or a larger refresh project.

Where you’ll use it

Perfect for bathrooms, kitchens, and any space with wall, counter, backsplash, shower, tub, or floor tiles. It works best on unsealed grout, so start with a quick test on a hidden area. The cap color provides a quick shade hint, though lighting can affect perception—always verify with a small test area.

What makes it effective

The colorant is non-toxic and water-based, designed to blend with existing grout to restore contrast and create a refreshed appearance. It’s well suited to quick, on-site touch-ups rather than a full grout replacement.

• Long-lasting coverage: up to 150 feet of 2 mm grout per pen, supporting both small touch-ups and larger refreshes.
• Versatile results: ideal for reviving grout with stains and discoloration for a renewed look.

Tips for best results

Cap color gives a shade hint, but match may vary by lighting. The tip is cotton-based and may wear with heavy pressure—use gentle strokes for clean lines. Shake only with the cap on, or pump the tip to activate. If the tip arrives dry, prime it by pumping 30+ times with the cap on until fully saturated.

• Bond check: this marker is intended for unsealed grout; test a small area to confirm bonding before full use.
• Preparation and care: prime the tip, avoid excessive force, and allow drying time between passes for best depth and evenness.

What’s in the pack

Each set contains three 7 mL pens with a narrow 5 mm tip, designed for precise lines and practical coverage across multiple grout joints. Ideal for DIY refreshes in kitchens, bathrooms, and other tiled spaces.