---
product_id: 338720014
title: "Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability"
brand: "smartseal"
price: "¥16744"
currency: JPY
in_stock: true
reviews_count: 8
category: "Smart Seal"
url: https://www.desertcart.jp/products/338720014-smartseal-grout-magic-mid-grey-and-pre-treatment-professional-reviver
store_origin: JP
region: Japan
---

# 10 colour options easy application & coverage 15-year durability Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability

**Brand:** smartseal
**Price:** ¥16744
**Availability:** ✅ In Stock

## Summary

> 🎯 Seal the deal with grout that lasts a decade and a half!

## Quick Answers

- **What is this?** Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability by smartseal
- **How much does it cost?** ¥16744 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/338720014-smartseal-grout-magic-mid-grey-and-pre-treatment-professional-reviver)

## Best For

- smartseal enthusiasts

## Why This Product

- Trusted smartseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Colour Range:** Choose from 10 popular shades to perfectly match or upgrade your grout aesthetic.
- • **Unmatched 15-Year Durability:** Long-lasting protection that outperforms grout pens and paints by years.
- • **Mould & Mildew Resistant Seal:** Keeps grout cleaner and fresher in high-moisture areas like kitchens and bathrooms.
- • **Professional-Grade Restoration:** Rejuvenate and recolour grout with a single, seamless application.
- • **Effortless Application & Coverage:** Covers up to 15 m² per 237ml bottle with simple prep and smooth finish.

## Overview

Smartseal Grout Magic Mid Grey is a professional silicone-based grout restorer and sealer that recolours, protects, and revitalizes grout lines with a durable finish lasting up to 15 years. Superior to traditional grout pens and paints, it resists fading, mould, and mildew, offering easy application and coverage of approximately 15 m² per 237ml bottle. Available in 10 popular colours, it’s ideal for bathrooms, kitchens, and floors seeking a fresh, long-lasting grout upgrade.

## Description

Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability : desertcart.co.uk: DIY & Tools

Review: Glad to have found this - Very happy with the product on using it. Goes on easily, and goes a long way. I bought the sample version until I found the right shade as my floor tiles are tricky to match. The job itself needs a brush a touch smaller than your grout line, eg artist type brush, small damp cotton wool balls to wipe away excess paint on tile edges as you go, and calm careful work. Two coats worked; looks great again. Mines was a reasonably small job. For big jobs I would split up the work into stages. The product is good but the care and attention is absolutely needed to get it looking well done. Will now see how it lasts.
Review: Easy to use and very effective. - So easy to use. Made the grout come up like new. Had a friend try and tell me it wouldn't work that well, and they were amazed how good it looked and how easy it was. Did the kitchen first 2 years ago and still looks brilliant. I did dark grey straight over white. No pretreatment. Just a quick clean, let it dry and then painted on, not perfect, wiped off and it looks like it has been newly re-grouted. Full kitchen took less than half a day!!

## Features

- Restore, Recolour and Protect Your Grout - Grout Magic is a professional-grade grout restorer designed to rejuvenate discoloured or stained grout lines. This advanced formula recolours, seals and protects in one easy application, offering far better performance than basic grout pens or thin grout paint.
- Transform Tired Grout with a Durable Finish - Specially formulated to bond effectively with existing grout, Grout Magic gives a clean, fresh and uniform appearance to wall and floor grout. It covers stains, discolouration and imperfections, helping to improve the overall look of bathroom tiles, kitchen tiles and shower grout.
- Superior to Traditional Grout Pens - Unlike grout pens, which often fade or wash out quickly, Grout Magic provides deep, lasting colour that resists wear. The protective sealing action helps reduce mould and mildew growth, keeping tile grout cleaner for longer in areas such as bathrooms, kitchens and showers.
- Available in 10 Popular Colours for Internal Use - With a choice of 10 popular grout colours, including our best-selling white grout paint shade, Grout Magic provides a high-quality finish suitable for any internal tile grout. Ideal for bathroom grout, kitchen grout, floor grout and ceramic tiles where a long-lasting colour upgrade is desired.
- Easy Application with Excellent Coverage - Preparation is simple using a suitable grout cleaner, followed by a smooth application of Grout Magic. Each 237ml bottle offers coverage of approximately 15 m² depending on tile size and grout width. Once dry, the tough, durable finish provides long-lasting protection and renewed visual appeal.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08LL9FWGP |
| Best Sellers Rank | 10,334 in DIY & Tools ( See Top 100 in DIY & Tools ) 48 in Tile Grout |
| Colour | Mid Grey |
| Customer Reviews | 3.9 3.9 out of 5 stars (1,520) |
| Date First Available | 19 Aug. 2022 |
| Included components | Product only |
| Manufacturer | Smartseal UK Ltd |
| Manufacturer reference | SM-GRMAG-MGR-PRE |
| Material | Silicone |
| Part number | SM-GRMAG-MGR-PRE |
| Style | Mid Grey - 1 x 237ml & 500ml Pre-treatment |

## Product Details

- **Brand:** SmartSeal
- **Item form:** Liquid
- **Material:** Silicone
- **Style:** Mid Grey - 1 x 237ml & 500ml Pre-treatment
- **Water resistance level:** Waterproof

## Images

![Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability - Image 1](https://m.media-amazon.com/images/I/31FJdtNhDEL.jpg)
![Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability - Image 2](https://m.media-amazon.com/images/I/31OgiPL64iL.jpg)
![Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability - Image 3](https://m.media-amazon.com/images/I/413VKMYy6hL.jpg)
![Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability - Image 4](https://m.media-amazon.com/images/I/41FspZF-o-L.jpg)
![Smartseal Grout Magic – Mid Grey & Pre-Treatment – Professional Reviver & Colour Restorer – Long-Lasting Sealer Superior to Grout Pens & Paint – 15-Year Durability - Image 5](https://m.media-amazon.com/images/I/41gYvzmYLFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Glad to have found this
*by D***P on 11 August 2025*

Very happy with the product on using it. Goes on easily, and goes a long way. I bought the sample version until I found the right shade as my floor tiles are tricky to match. The job itself needs a brush a touch smaller than your grout line, eg artist type brush, small damp cotton wool balls to wipe away excess paint on tile edges as you go, and calm careful work. Two coats worked; looks great again. Mines was a reasonably small job. For big jobs I would split up the work into stages. The product is good but the care and attention is absolutely needed to get it looking well done. Will now see how it lasts.

### ⭐⭐⭐⭐⭐ Easy to use and very effective.
*by A***R on 8 August 2025*

So easy to use. Made the grout come up like new. Had a friend try and tell me it wouldn't work that well, and they were amazed how good it looked and how easy it was. Did the kitchen first 2 years ago and still looks brilliant. I did dark grey straight over white. No pretreatment. Just a quick clean, let it dry and then painted on, not perfect, wiped off and it looks like it has been newly re-grouted. Full kitchen took less than half a day!!

### ⭐⭐⭐⭐ CLEAN FIRST!
*by A***. on 9 January 2022*

The product absolutely works and you can get a good finish, but how it comes out is completely down to your preparation, method, and how good the grout has been done in the first place. Firstly, you need to clean the grout thoroughly, if there's any grease on the kitchen grout or slime on the bathroom grout then it will not penetrate and will come off when you rub off the excess. As someone else in the reviews has said, a wire brush (I used a firm toothbrush) is a good idea, a scourer at least. Secondly, the instructions say that you can remove the excess immediately but I haven't found that to be the case. It needs a good 45 minutes to an hour to soak into the grout, and at least two coats. Lastly, and this likely only relates to darker colours; if your grout is poorly done (as mine was) then making the colour darker show up the poor workmanship. Excess grout on the tiles will show way more and uneven tiles will become more apparent. If you're doing white on white then you should be fine. A decent product, but needs to come with MUCH better instructions and support - a guide video would do the trick.

## Frequently Bought Together

- Smartseal Grout Magic - Professional Grade Reviver - 10 Popular Colours - Superior to Paint & Pen - 15 Year Lifespan - Mid Grey & Pre-Treatment
- Harris Seriously Good Fitch Paint Brushes Pack Of 3 Cutting In & Control Hobby & Craft 0.5", 0.75", 1, Brown

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-11*