---
product_id: 10800428
title: "Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Narrow 5mm Tip (7mL)"
brand: "rainbow chalk markers limited"
price: "R383"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Rainbow Chalk Markers Limited"
url: https://www.desertcart.co.za/products/10800428-grout-pen-dark-grey-tile-grout-paint-marker-restorer-narrow
store_origin: ZA
region: South Africa
---

# Water-based, non-toxic, waterproof ink Covers up to 150 feet of 2mm grout 5mm precision tip for flawless grout lines Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Narrow 5mm Tip (7mL)

**Brand:** rainbow chalk markers limited
**Price:** R383
**Availability:** ✅ In Stock

## Summary

> ✨ Transform your grout, transform your space 🏡

## Quick Answers

- **What is this?** Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Narrow 5mm Tip (7mL) by rainbow chalk markers limited
- **How much does it cost?** R383 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/10800428-grout-pen-dark-grey-tile-grout-paint-marker-restorer-narrow)

## 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

- • **Foolproof Application:** 5mm narrow tip delivers clean lines; excess wipes off easily for a professional finish.
- • **Long-Lasting Coverage:** One pen covers extensive grout lines, perfect for large kitchen backsplashes or shower walls.
- • **Effortless Grout Revival:** Skip scrubbing—instantly refresh grout with smooth, paint-marker precision.
- • **Safe & Eco-Friendly Formula:** Non-toxic, water-based ink ensures a safe, odor-free DIY upgrade.
- • **Universal Tile Compatibility:** Ideal for bathroom, kitchen, and any tiled surface needing a sleek grout makeover.

## Overview

The Grout Pen Dark Grey is a 7mL waterproof paint marker with a 5mm tip designed to restore and recolor unsealed grout lines up to 150 feet. Featuring a non-toxic, water-based formula, it offers an easy, long-lasting solution for refreshing grout in kitchens, bathrooms, and tiled areas without scrubbing. Its precision tip and quick-dry ink ensure a clean, professional finish that resists stains and discoloration.

## Description

desertcart.com: Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Narrow 5mm Tip (7mL) | Waterproof Grout Line Refresher for Kitchen & Bathroom, Colorant and Sealer Pens for Cleaner Looking Grout Lines - Dark Grey : Arts, Crafts & Sewing

Review: Awesome! - 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.
Review: Quick, easy and cheap - Best and cheapest way to totally transform tile. I bought a table at a thrift shop with tile in the center. The grout wouldn’t come clean so I bought this to cover it. Took me a total of 20min to do two coats. It glides on so smooth and effortless. Dries super fast. I recommend having a piece of paper nearby to prime the pen occasionally to make sure it stays wet. Highly recommend this product!

## 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 150 feet of thin 2mm grout
- 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 | B0077LMF9Y |
| Additional Features | GROUT PEN |
| Best Sellers Rank | #25,092 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #30 in Tile Grout |
| Brand | Rainbow Chalk Markers Limited |
| Brand Name | Rainbow Chalk Markers Limited |
| Color | Dark Grey |
| Customer Reviews | 4.3 out of 5 stars 4,030 Reviews |
| Included Components | Grout Pen |
| Ink Base | Water |
| Ink Color | Dark Grey |
| Is Waterproof | TRUE |
| Item Diameter | 5 millimeters |
| Item Dimensions | 0.7 x 0.7 x 5.5 inches |
| Item Type Name | Grout Paint Pen |
| Item Weight | 27.22 g |
| Line Size | 5 |
| Manufacturer | Rainbow Chalk Markers Ltd |
| Manufacturer Part Number | GP81116 |
| Marker Type | Paint Marker |
| Material Type | Grout Paint |
| Model Number | GP81116 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Pattern | GROUT PEN |
| Point Type | 5mm |
| Recommended Uses For Product | Tile Grout |
| Style | Modern |
| Surface Recommendation | Tile , Floor, Tub, Shower, Countertop, Backsplash, Sink, Wall, Patio |
| Target Audience | Adult |
| UPC | 722480211164 072248021116 |
| Warranty Description | 100% satisfaction guaranteed |
| Water Resistance Level | Waterproof |
| Writing Instrument Form | Marker Pen |
| Writing Technique | Painting |

## Product Details

- **Brand:** Rainbow Chalk Markers Limited
- **Ink Color:** Dark Grey
- **Number of Items:** 1
- **Point Type:** 5mm
- **Recommended Uses For Product:** Tile Grout

## Images

![Grout Pen Dark Grey Tile Grout Paint Marker Restorer - Narrow 5mm Tip (7mL) - Image 1](https://m.media-amazon.com/images/I/71TEUe9rSEL.jpg)

## Available Options

This product comes in different **Size** options.

## 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

### ⭐⭐⭐⭐⭐ Awesome!
*by C***J on March 24, 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.

### ⭐⭐⭐⭐⭐ Quick, easy and cheap
*by M***A on March 16, 2026*

Best and cheapest way to totally transform tile. I bought a table at a thrift shop with tile in the center. The grout wouldn’t come clean so I bought this to cover it. Took me a total of 20min to do two coats. It glides on so smooth and effortless. Dries super fast. I recommend having a piece of paper nearby to prime the pen occasionally to make sure it stays wet. Highly recommend this product!

### ⭐⭐⭐⭐ Get the jar instead of the pen
*by T***L on August 6, 2026*

It’s ok. The stain works, but as other reviews show the marker tip gets shredded as you use it making it difficult to stay in the lines. I actually ripped the tip off and flipped it which helped me finish the job but I’ll probably get the jar of paint to use with a brush next time. I feel like there is still product in the pen that won’t come out? Idk paint itself is good, pen design is bad.

## 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 South Africa*
*Store origin: ZA*
*Last updated: 2026-10-20*