---
product_id: 10800428
title: "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)"
brand: "rainbow chalk markers limited"
price: "₩24932"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/10800428-grout-pen-dark-grey-tile-grout-paint-marker-waterproof-tile
store_origin: KR
region: South Korea
---

# Covers up to 150ft grout Waterproof & durable 5mm precision tip 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)

**Brand:** rainbow chalk markers limited
**Price:** ₩24932
**Availability:** ✅ In Stock

## Summary

> ✨ Transform your tiles, skip the hassle! 🖊️

## Quick Answers

- **What is this?** 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) by rainbow chalk markers limited
- **How much does it cost?** ₩24932 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/10800428-grout-pen-dark-grey-tile-grout-paint-marker-waterproof-tile)

## 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 Renewal:** Narrow 5mm tip for flawless grout touch-ups
- • **Effortless Makeover:** Skip scrubbing—instantly brighten grout with a smooth paint pen
- • **Safe & Smart Formula:** Non-toxic, water-based ink that’s safe for home and environment
- • **Long-Lasting Coverage:** One pen covers up to 150 feet of grout lines, perfect for any project size
- • **Versatile Application:** Ideal for bathroom, kitchen, patio, and any tiled surface needing a fresh look

## Overview

The Grout Pen Dark Grey is a waterproof, non-toxic grout paint marker featuring a precise 5mm tip that covers up to 150 feet of grout lines. Designed for easy, mess-free application, it renews and brightens grout on tiles across kitchens, bathrooms, patios, and more—offering a quick, durable solution to tired, stained grout without scrubbing.

## Description

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)

## 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
- SEALED GROUT: Grout Pen may not bond to recently sealed grout. Test the grout with a few drops of water. If the grout does not absorb the water within a few minutes then the grout was 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 gently pump the tip (20-30 times) until fully saturated

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Grout Paint Pen |
| Brand | Rainbow Chalk Markers Limited |
| Style | Modern |
| Item Weight | 25 Grams |
| Item dimensions L x W x H | 0.7 x 0.7 x 5.5 inches |
| Water Resistance Level | Waterproof |
| Item Form | Grout Paint Pen |
| UPC | 722480211164 072248021116 |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Color | Dark Grey |
| Surface Recommendation | Tile , Floor, Tub, Shower, Countertop, Backsplash, Sink, Wall, Patio |
| Manufacturer | Rainbow Chalk Markers Ltd |
| Part Number | GP81116 |
| Item Weight | 0.882 ounces |
| Product Dimensions | 0.7 x 0.7 x 5.5 inches |
| Item model number | GP81116 |
| Is Discontinued By Manufacturer | No |
| Size | Narrow Tip |
| Pattern | GROUT PEN |
| Thickness | 5 Millimeters |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Certification | Astm-d4236 |
| Special Features | GROUT PEN |
| Included Components | Grout Pen |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 100% satisfaction guaranteed |

## Product Details

- **Material:** Grout Paint Pen
- **Brand:** Rainbow Chalk Markers Limited
- **Style:** Modern
- **Item Weight:** 25 Grams
- **Item dimensions L x W x H:** 0.7 x 0.7 x 5.5 inches

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/71bMDirAABL.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

## 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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**Shop now:** [https://www.desertcart.kr/products/10800428-grout-pen-dark-grey-tile-grout-paint-marker-waterproof-tile](https://www.desertcart.kr/products/10800428-grout-pen-dark-grey-tile-grout-paint-marker-waterproof-tile)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-30*