---
product_id: 236116476
title: "Grout Pen Dark Grey - Ideal to Restore The Look of Tile Grout Lines"
brand: "rainbow chalk markers ltd"
price: "AR$58437"
currency: ARS
in_stock: true
reviews_count: 5
category: "Rainbow Chalk Markers Ltd"
url: https://www.desertcart.com.ar/products/236116476-grout-pen-dark-grey-ideal-to-restore-the-look-tile
store_origin: AR
region: Argentina
---

# Water-resistant coverage up to 60m grout Anti-bacterial & anti-fungal formula 5mm reversible bullet nib precision Grout Pen Dark Grey - Ideal to Restore The Look of Tile Grout Lines

**Brand:** rainbow chalk markers ltd
**Price:** AR$58437
**Availability:** ✅ In Stock

## Summary

> 🖌️ Refresh your grout, reclaim your space — don’t let dull tiles hold you back!

## Quick Answers

- **What is this?** Grout Pen Dark Grey - Ideal to Restore The Look of Tile Grout Lines by rainbow chalk markers ltd
- **How much does it cost?** AR$58437 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/236116476-grout-pen-dark-grey-ideal-to-restore-the-look-tile)

## Best For

- rainbow chalk markers ltd enthusiasts

## Why This Product

- Trusted rainbow chalk markers ltd brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Coverage:** Covers up to 60 meters of grout, transforming your tiles in one go
- • **Mould-Free Confidence:** Anti-bacterial formula actively prevents mould and mildew reappearance
- • **Precision Restoration:** Restore grout lines with exact 5mm nib control for a flawless finish
- • **Effortless Application:** Water-based, non-toxic ink ensures safe use even in enclosed spaces
- • **Sleek Dark Grey Finish:** Modern dark grey color instantly refreshes and elevates tile aesthetics

## Overview

The Grout Pen Dark Grey by Rainbow Chalk Markers Ltd is a water-based, anti-bacterial marker designed to restore and refresh tile grout lines with precision. Featuring a reversible 5mm nib, it covers up to 60 meters of grout, providing a water-resistant, mould-preventing finish ideal for both wall and floor tiles. Safe for enclosed areas and non-toxic, this pen offers a sleek dark grey color that revitalizes grout lines, making your tiled spaces look brand new.

## Description

This Grout ink formula is water based and covers over stained areas that are caused by everyday mould and dirt build up on grout between tiles. Not only does this product restore the grout’s look it also helps prevent further moulding with its anti-bacterial formulation. Product Specifications 5mm bullet nib reversible. Water based & non – toxic. Anti – bacterial & anti – fungal formula. Safe to use in enclosed areas. Covers 60 metres of grout area. Water resistant. Valve activated to control ink flow. For use on all types of wall & floor grout

Review: Utile - Fantastico veramente utile
Review: Pronto arreglo - Indeleble

## Features

- Restores Dark Grey Tile Grout Lines
- Your order will usually arrive around 7 - 10 days from purchase. UK supplier
- Change Colour of your Tile Grout Lines
- Anti-bacterial agents help prevent mould from re-appearing
- package included: 1 pcs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0077LMF9Y |
| Best Sellers Rank | #74,988 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #283 in Tile Grout |
| Brand | RAINBOW CHALK MARKERS LTD |
| Brand Name | RAINBOW CHALK MARKERS LTD |
| Country of Origin | USA |
| Customer Reviews | 4.2 out of 5 stars 3,931 Reviews |
| Included Components | 1 |
| Ink Base | Water |
| Ink Colour | Dark Grey |
| Is Waterproof | False |
| Item Dimensions | 18 x 18 x 140 Millimeters |
| Item Weight | 27 g |
| Line Size | 5mm millimeters |
| Manufacturer | Rainbow Chalk Markers Ltd |
| Manufacturer Part Number | GP81116 |
| Model number | GP81116 |
| Number Of Items | 1 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Special Feature | Anti-bacterial |
| Special Features | Anti-bacterial |
| Style Name | Compact |
| Surface Recommendation | Floor, Tile, Wall |
| UPC | 722480211164 072248021116 |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Marker Pen |

## Product Details

- **Material:** As shown in the image
- **Brand:** RAINBOW CHALK MARKERS LTD
- **Style:** Compact
- **Item Weight:** 25 Grams
- **Item dimensions L x W x H:** 18 x 18 x 140 Millimeters

## Images

![Grout Pen Dark Grey - Ideal to Restore The Look of Tile Grout Lines - Image 1](https://m.media-amazon.com/images/I/71TEUe9rSEL.jpg)

## Questions & Answers

**Q: Can this be used over painted/sealed grout?**
A: I used on sealed grout and it worked great

**Q: What is the difference in the pen sizes? Does one contain more product or does it have a bigger tip?**
A: The Large Pen is 15mm wide (about the size of a typical Jumbo Marker).  The 5mm pen is about the size of a regular sharpie marker.

**Q: What size room does one pen cover?**
A: Good question.  The manufacturer states "up to 60 meters coverage for narrow grout joints".  60 meters is approximately 196 linear feet, however results vary as the porosity of grouts can very greatly.

**Q: Will this pen let me change the color of grout that is currently white but discolored? I want grey grout lines on my bathroom floor.**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Utile
*by E***A on 4 March 2021*

Fantastico veramente utile

### ⭐⭐⭐⭐⭐ Pronto arreglo
*by A***A on 8 August 2019*

Indeleble

### ⭐⭐⭐⭐⭐ Awesome!
*by C***J on 24 March 2019*

I just finished my grout coloring projects today. I must say that I am very pleased with the grout pen(dark gray) so far. I purchased three pens for my kitchen backsplash and a shower wall. One wall in my shower has a dark gray grout, which in spots was beginning to discolor. I scrubbed and scrubbed, however, I could not bring the color back. I used a dark gray grout pen and colored all of the grout on that shower wall and it turned out great. It was easy to use, clean up of any excess on the tile was simple and the color looks great. See photos. Next, my kitchen backsplash. The backsplash is made up of white subway tile with white grout. The only problem is that the white grout became very dingy and yellowish over time. I used the same dark gray grout pens for the backsplash and it turned out amazing. See photos. The grout pens last a long time in my opinion. I used maybe one and a half pens for both my kitchen backsplash and shower wall. I even double coated near the kitchen sink and behind the oven for extra protection. It took me about 8 hours to do the kitchen and shower wall. My recommendation to you would be to complete your task, allow the grout to dry for an hour or so and come back to wipe down the excess color off of the tiles. With a damp cloth, the excess color wipes right off of the tiles. With a non-porous tile, you don’t need to worry about coloring outside the lines. It will not stain. Don’t wipe down after every bit of color you get on the tile, it will add so much time to your job. Wait until you’re all finished, then clean. I used microfiber towels, bundled up and damp. I worked it in circle motions through the tile wall, trying not to apply to much pressure to the grout lines. When the grout color is fresh, some may wipe off if you apply too much pressure directly to the grout. This is why I recommend waiting an hour + before wiping down. Allow it to settle into the grout. I started wiping too quickly after application and had to add some color again. After you clean up the excess color off of the tiles, examine for any touch up areas. There will likely be a few. Some reviews addressed the pen tip breaking. I never experienced this. During the color process, keep a paper plate handy to dab and prime the color into the pen tip. Do this often and you won’t need to press hard while coloring. I could see it breaking if you go all King Kong on it. I can’t speak for the durability of the product yet, but as time goes on, I will update my review. I may add a spray on tile/grout seal after a few days to help protect the color as well.

## Frequently Bought Together

- Grout Pen Dark Grey Tile Grout Paint Marker: Waterproof Tile Grout Paint Pen Colorant, Grout Shine Touch Up & Renew - Dark Grey, Narrow 5mm Tip (7mL)
- Grout Pen Black Tile Paint Marker: Waterproof Grout Paint, Tile Grout Colorant and Sealer Pen - Black, Narrow 5mm Tip (7mL)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-09-27*