---
product_id: 10800429
title: "Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Wide 15mm Tip (20ml) | Waterproof Grout Line Refresher for Kitchen & Bathroom, Colorant and Sealer Pens for Cleaner Looking Grout Lines - Dark Grey"
brand: "rainbow chalk markers limited"
price: "R513"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Rainbow Chalk Markers Limited"
url: https://www.desertcart.co.za/products/10800429-grout-pen-dark-grey-tile-grout-paint-marker-restorer-wide
store_origin: ZA
region: South Africa
---

# Water-based, waterproof ink for durability 15mm wide tip for bold, even coverage Covers up to 100 feet of grout lines Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Wide 15mm Tip (20ml) | Waterproof Grout Line Refresher for Kitchen & Bathroom, Colorant and Sealer Pens for Cleaner Looking Grout Lines - Dark Grey

**Brand:** rainbow chalk markers limited
**Price:** R513
**Availability:** ✅ In Stock

## Summary

> 🖌️ Refresh your grout, refresh your space—because first impressions matter!

## Quick Answers

- **What is this?** Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Wide 15mm Tip (20ml) | Waterproof Grout Line Refresher for Kitchen & Bathroom, Colorant and Sealer Pens for Cleaner Looking Grout Lines - Dark Grey by rainbow chalk markers limited
- **How much does it cost?** R513 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/10800429-grout-pen-dark-grey-tile-grout-paint-marker-restorer-wide)

## Best For

- rainbow chalk markers limited enthusiasts

## Why This Product

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

## Key Features

- • **Precision Bold Tip:** Wide 15mm cotton tip delivers smooth, consistent coverage every time
- • **Eco-Friendly & Safe:** Non-toxic, water-based ink keeps your home and family safe
- • **Versatile Application:** Perfect for kitchen, bathroom, and any tiled space
- • **Effortless Grout Revival:** Skip scrubbing—paint on a fresh, clean look in minutes
- • **Long-Lasting Performance:** Waterproof formula stands up to heavy foot traffic and scrubbing

## Overview

The Grout Pen Dark Grey is a 20ml paint marker featuring a bold 15mm tip designed to restore and recolor grout lines with a waterproof, non-toxic, water-based ink. Ideal for unsealed grout in kitchens, bathrooms, and tiled areas, it covers up to 100 feet of grout lines, delivering a durable, clean finish that resists scrubbing and heavy use.

## Description

Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Wide 15mm Tip (20ml) | Waterproof Grout Line Refresher for Kitchen & Bathroom, Colorant and Sealer Pens for Cleaner Looking Grout Lines - Dark Grey - Tile Grout Cleaners - desertcart.com

Review: Easy to use, great results, and surprisingly durable - Results were better than I expected, and applying it was easier than I expected. I bought this item four years ago, and applied it at that time, and now four years later I am returning to get the same item again to touch it up. I used it on my kitchen floor which gets heavy use, and it held up surprisingly well. I would not have even touched it up except for the fact that I am currently cleaning and sealing the tile, so I figured I might as well touch up the grout while I'm at it. Great product, highly recommend.
Review: Would purchase again if I need it. - Simple to use, fast results and permanent. It enhances the tile work and makes the floor look cleaner. It is some very tough material and stands up to scrubbing floors well. I recommend using it to cover old grout to refresh color or to change it.

## Features

- LOOK BRAND NEW: Skip scrubbing tiles and use GROUT PEN to paint and recolor your grout for a bright clean appearance
- USE ANYWHERE: Ideal for the bathroom, kitchen, and any other room that has floor or ceiling tiles
- LONG LASTING INK: Tackle small or large DIY projects with a pen that covers up to 100 feet of wide grout lines
- ADVANCED FORMULA: Non-toxic, water-based colorant that covers grubby grout stains making it look brand new again
- CAP COLOR: Use the color chart (see images) for most accurate color depiction. Pen cap represents each pen's color but is not expected to be the exact shade, do a small test area first
- USE ON UNSEALED GROUT ONLY: GROUT PEN may not bond to sealed grout. Test grout with a few drops of water. If the grout does not absorb the water within a minute this means the grout is likely sealed.
- TIP MAY WEAR DOWN: Tip is made of cotton, pressing too hard will damage tip. Contact seller for replacement tips if needed
- SHAKE ONLY WITH CAP ON: Tip is removable and may fall out if shaken hard, only shake pen with cap on (note - Pen does not need to be shaken at all, instead gently pump tip to activate)
- DRY TIP: Pen needs to be primed before use, all new GROUT PENs come with a dry white tip. To activate rapidly pump the tip (30+ times) until fully saturated

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007D0J0CY |
| Additional Features | GROUT PEN |
| Best Sellers Rank | #118,200 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #113 in Tile Grout |
| Body Shape | Round |
| Brand | Rainbow Chalk Markers Limited |
| Brand Name | Rainbow Chalk Markers Limited |
| Color | Dark Grey |
| Customer Reviews | 4.2 out of 5 stars 1,140 Reviews |
| Hand Orientation | Ambidextrous |
| Included Components | GROUT PEN |
| Ink Base | Water |
| Ink Color | Dark Grey |
| Is Waterproof | True |
| Item Dimensions | 1.25 x 1.25 x 6.25 inches |
| Item Type Name | Grout Paint Pen |
| Item Weight | 79 g |
| Line Size | 15 millimeters |
| Manufacturer | Rainbow Chalk Markers Ltd |
| Manufacturer Part Number | GP81216 |
| Marker Type | Paint Marker |
| Material Type | Grout Paint |
| Model Number | GP81216 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Pattern | GROUT PEN |
| Point Type | Bold |
| Recommended Uses For Product | Tile Grout , Floor, Tub, Shower, Countertop, Backsplash, Sink, Wall, Patio |
| Style | Modern |
| Surface Recommendation | Tile , Floor, Tub, Shower, Countertop, Backsplash, Sink, Wall, Patio |
| Target Audience | Adult |
| UPC | 722480212161 |
| Unit Count | 1 Count |
| Water Resistance Level | Waterproof |
| Writing Instrument Form | Marker Pen |
| Writing Technique | Pumping action |

## Product Details

- **Brand:** Rainbow Chalk Markers Limited
- **Ink Color:** Dark Grey
- **Number of Items:** 1
- **Point Type:** Bold
- **Recommended Uses For Product:** Tile Grout , Floor, Tub, Shower, Countertop, Backsplash, Sink, Wall, Patio

## Images

![Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Wide 15mm Tip (20ml) | Waterproof Grout Line Refresher for Kitchen & Bathroom, Colorant and Sealer Pens for Cleaner Looking Grout Lines - Dark Grey - Image 1](https://m.media-amazon.com/images/I/71F6uMyemxL.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

### ⭐⭐⭐⭐⭐ Easy to use, great results, and surprisingly durable
*by S***K on May 30, 2026*

Results were better than I expected, and applying it was easier than I expected. I bought this item four years ago, and applied it at that time, and now four years later I am returning to get the same item again to touch it up. I used it on my kitchen floor which gets heavy use, and it held up surprisingly well. I would not have even touched it up except for the fact that I am currently cleaning and sealing the tile, so I figured I might as well touch up the grout while I'm at it. Great product, highly recommend.

### ⭐⭐⭐⭐⭐ Would purchase again if I need it.
*by C***R on March 31, 2026*

Simple to use, fast results and permanent. It enhances the tile work and makes the floor look cleaner. It is some very tough material and stands up to scrubbing floors well. I recommend using it to cover old grout to refresh color or to change it.

### ⭐⭐⭐⭐ Easy and quick for big impact
*by A***S on February 28, 2018*

I love the color and was of use. The foam tip comes out easily so be careful with that but my grout looks great and it is a job well done (even with my limited skillset)!

## Frequently Bought Together

- Grout Pen Dark Grey Tile Grout Paint Marker: Waterproof Tile Grout Paint Pen Colorant, Grout Shine Touch Up & Renew - Dark Grey, Wide 15mm Tip (20mL)
- Grout Pen Dark Grey Tile Paint Marker: Waterproof Grout Paint, Tile Grout Colorant and Sealer Pen - Narrow 5mm, 2 Pack with Extra Tips (7mL) - Dark Grey
- Grout Pen White Tile Grout Paint Marker Replacement Tips: 5 Pack of Wide Tip 15mm Large - Waterproof Grout Paint Pen, Grout Colorant and Sealer Pen to Renew and Refresh Tile Grout

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**Shop now:** [https://www.desertcart.co.za/products/10800429-grout-pen-dark-grey-tile-grout-paint-marker-restorer-wide](https://www.desertcart.co.za/products/10800429-grout-pen-dark-grey-tile-grout-paint-marker-restorer-wide)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-12*