---
product_id: 97736199
title: "Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat"
brand: "polar specialist coatings"
price: "¥8724"
currency: JPY
in_stock: true
reviews_count: 13
category: "Polar Specialist Coatings"
url: https://www.desertcart.jp/products/97736199-polar-leak-seal-waterproof-roof-paint-500ml-black-one-coat
store_origin: JP
region: Japan
---

# Touch dry in 3-4 hours 500ml covers 0.5㎡ in one coat UV resistant & weatherproof membrane Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat

**Brand:** polar specialist coatings
**Price:** ¥8724
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal leaks fast, stay dry longer—because your roof deserves the best!

## Quick Answers

- **What is this?** Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat by polar specialist coatings
- **How much does it cost?** ¥8724 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/97736199-polar-leak-seal-waterproof-roof-paint-500ml-black-one-coat)

## Best For

- polar specialist coatings enthusiasts

## Why This Product

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

## Key Features

- • **One-Coat Wonder:** Achieve a durable, waterproof seal with just a single application—no primer needed.
- • **DIY-Ready Formula:** Designed for both pros and weekend warriors—easy to apply with no special tools required.
- • **Rapid Drying Power:** Get back to your day fast with a touch-dry finish in under 4 hours, minimizing downtime.
- • **Weatherproof Warrior:** Built to withstand harsh weather and UV exposure, ensuring long-lasting protection.
- • **Versatile Surface Shield:** Perfect for metal, wood, concrete, fiberglass, and more—your all-in-one leak defense.

## Overview

Polar Leak Seal Waterproof Roof Paint is a 500ml solvent-based acrylic sealant that provides a tough, UV-resistant waterproof membrane in just one coat. It dries to touch within 3-4 hours and is compatible with multiple surfaces including metal, wood, concrete, and fiberglass. Ideal for quick, durable repairs on roofs, gutters, and drainpipes, it offers professional-grade protection for both residential and commercial use.

## Description

Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat | One-Coat Waterproof Roof Sealant, Leak and Crack Repair, Roofs, Gutters and Drainpipes, UV Resistant, No Primer Needed : desertcart.co.uk: DIY & Tools

Review: Very impressed. Performed exactly as stated and sorted my leaky roof. - Used this to repair/seal a lead lined bay window roof and I am very impressed. The tin arrived in perfect condition, the lid was securely sealed with metal clips and the contents were complete. Tips: mix/stir very well before use to make sure the fibreglass strands are mixed back into the paint (only the black and grey paints I think). Wear a good quality face mask as the paint gives off very strong vapours. The instructions warn you of this. Apply a couple of coats depending on the nature of and damage to the surface being painted. I applied 3 coats to be sure, but the 3rd was overkill to be honest. Very pleased and impressed with the product. It's sorted the problem for me.
Review: So Far So Good! - I read all the reviews on this and decided to give it a go. I established where the leak on my shed roof was and discovered it was probably where there was a join/ seam. Got out the ladders and once I felt save painted this seal all along the seam. As we had 2 days of dry weather and a bit of sun I also coated again on the second day. Very easy to use its rather like funny honey. I also coated the ceiling of the roof inside where I had detected the leak . I put my potting tray under where I had put it to catch water and after 3 days of very heave rain NO LEAK. It wound have cost a great deal more if I had got a man in to do it! Not bad for a 70 year old granny I am very happy. Oh yes as stated in several reviews just throw out the brush and wear rubber gloves and tale great care up the ladder! Mm all

## Features

- Flammable liquid and vapour.
- May cause harm to breast-fed children.
- Toxic to aquatic life with long lasting effects.
- Water Leak Sealant: Polar LeakSeal addresses leaks or cracks, forms a protective membrane to keep water out and safeguards against damage from severe weather
- Easy to Apply: No primer needed before applying the leak fix. This sealant becomes touch dry within 3-4 hours. Designed for DIY enthusiasts and trade use to stop leaks and create a durable seal
- Multi-Purpose Use: Water sealant for felt shed roofs, asphalt, gutters, concrete, brick, fiberglass, and metal roofing. Available in Clear, Grey, and Black. Ensures versatility across applications for strong protection. Note: The product is not compatible with copper surfaces
- One Coat Repair: This leak repair spray provides quick repair on flat or pitched roofs. With 500ml covering up to 0.5㎡, its quick-drying formula minimises downtime. Suitable for residential and commercial waterproofing needs
- Instant Protection: Formulated for tough, hard-wearing protection. This leak sealer is suitable for emergency repairs on drain pipes, gutters, and roofs. It provides lasting protection to cracked surfaces and performs well in all weather conditions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L6PRNHG |
| Best Sellers Rank | 4,003 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Roof Coatings & Paints |
| Brand | Polar Specialist Coatings |
| Colour | Black |
| Compatible Material | Metal, Wood |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 4,175 Reviews |
| Included Components | Paint |
| Item Dimensions | 11 x 10 x 11 centimetres |
| Item Form | Liquid |
| Item Highlight | One-Coat Waterproof Roof Sealant, Leak and Crack Repair, Roofs, Gutters and Drainpipes, UV Resistant, No Primer Needed |
| Item Weight | 600 Grams |
| Item dimensions L x W x H | 11 x 10 x 11 centimetres |
| Item weight | 600 Grams |
| Manufacturer | Polar Protective Products |
| Manufacturer Part Number | 3000331 |
| Material | Solvent-Based Acrylic |
| Model Number | 3000331 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Metal, Wood, Plastics & Ceramics |
| Unit Count | 500.0 millilitre |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |

## Product Details

- **Brand:** Polar Specialist Coatings
- **Item dimensions L x W x H:** 11 x 10 x 11 centimetres
- **Item weight:** 600 Grams
- **Material:** Solvent-Based Acrylic
- **Style:** Compact

## Images

![Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat - Image 1](https://m.media-amazon.com/images/I/71WiXC6H92L.jpg)
![Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat - Image 2](https://m.media-amazon.com/images/I/81gK-fqAfzL.jpg)
![Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat - Image 3](https://m.media-amazon.com/images/I/81FKqXWokWL.jpg)
![Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat - Image 4](https://m.media-amazon.com/images/I/81v-IClCplL.jpg)
![Polar Leak Seal Waterproof Roof Paint, 500ml, Black, One Coat - Image 5](https://m.media-amazon.com/images/I/81mDL7-V4GL.jpg)

## Available Options

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

## Questions & Answers

**Q: What surfaces can Polar LeakFix Paint be applied to?**
A: Polar LeakFix Paint is versatile and can be applied to various surfaces, including metal roofs, gutters, bitumen, concrete, lead, fiberglass, and asphalt.

**Q: Does Polar LeakFix Paint withstand extreme weather conditions?**
A: Yes, Polar LeakFix Paint is designed to endure extreme temperatures and heavy rainfall, ensuring long-lasting protection against leaks and water damage in challenging conditions.

**Q: How long does Polar LeakFix Paint take to dry?**
A: The drying time for Polar LeakFix Paint varies based on temperature and coating thickness. Typically, it completes drying within 6-7 days after application, ensuring a seamless and durable finish.

**Q: What is the coverage rate of Polar LeakFix Paint?**
A: One liter of Polar LeakFix Paint covers up to 1 square meter when applied in a single coat, depending on the surface texture and porosity.

**Q: Is Polar LeakFix Paint suitable for indoor applications?**
A: Polar LeakFix Paint is primarily designed for exterior surfaces such as roofs, gutters, and walls.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very impressed. Performed exactly as stated and sorted my leaky roof.
*by T***F on 8 November 2025*

Used this to repair/seal a lead lined bay window roof and I am very impressed. The tin arrived in perfect condition, the lid was securely sealed with metal clips and the contents were complete. Tips: mix/stir very well before use to make sure the fibreglass strands are mixed back into the paint (only the black and grey paints I think). Wear a good quality face mask as the paint gives off very strong vapours. The instructions warn you of this. Apply a couple of coats depending on the nature of and damage to the surface being painted. I applied 3 coats to be sure, but the 3rd was overkill to be honest. Very pleased and impressed with the product. It's sorted the problem for me.

### ⭐⭐⭐⭐ So Far So Good!
*by A***3 on 8 November 2021*

I read all the reviews on this and decided to give it a go. I established where the leak on my shed roof was and discovered it was probably where there was a join/ seam. Got out the ladders and once I felt save painted this seal all along the seam. As we had 2 days of dry weather and a bit of sun I also coated again on the second day. Very easy to use its rather like funny honey. I also coated the ceiling of the roof inside where I had detected the leak . I put my potting tray under where I had put it to catch water and after 3 days of very heave rain NO LEAK. It wound have cost a great deal more if I had got a man in to do it! Not bad for a 70 year old granny I am very happy. Oh yes as stated in several reviews just throw out the brush and wear rubber gloves and tale great care up the ladder! Mm all

### ⭐⭐⭐⭐⭐ Excellent product. Does exactly what it promises to do on the tin.
*by T***. on 30 June 2026*

Excellent product. Does exactly what it promises to do on the tin.

## Frequently Bought Together

- Polar Premium Leak Seal Black Paint - 500ml - Instant Waterproof Roof Sealant - Ideal for Leaks, Cracks & Roof Repair - Concrete, Brick, Metal, Drainpipes & Gutters - Easy to Apply
- Faithfull Tar Brush Short Handle FAIBRTARSH
- fowong Waterproof Tape Aluminium Foil Butyl Tape, Waterproof Tape for Leaks and Outdoor Use, 50mm(W) x 5M(L) Flashing Tape for Roof Sealant Tape for Repairing Crack, Gutter, RV Repair

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**Shop now:** [https://www.desertcart.jp/products/97736199-polar-leak-seal-waterproof-roof-paint-500ml-black-one-coat](https://www.desertcart.jp/products/97736199-polar-leak-seal-waterproof-roof-paint-500ml-black-one-coat)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-23*