---
product_id: 570258339
title: "Transparent Polyurethane Waterproof Coating Agent: Invisible Clear Waterproof Sealant - 300g Anti-Leaking Adhesive Agent Coating Tile Trapping Repair Wall Mending Agent Glue for Home Roof Bathroom"
brand: "alnilk"
price: "¥5396"
currency: JPY
in_stock: true
reviews_count: 10
category: "Alnilk"
url: https://www.desertcart.jp/products/570258339-transparent-polyurethane-waterproof-coating-agent-invisible-clear-waterproof-sealant-300g
store_origin: JP
region: Japan
---

# 300g ultra-clear waterproof sealant fast 3-6 hour curing time high-viscosity strong adhesion Transparent Polyurethane Waterproof Coating Agent: Invisible Clear Waterproof Sealant - 300g Anti-Leaking Adhesive Agent Coating Tile Trapping Repair Wall Mending Agent Glue for Home Roof Bathroom

**Brand:** alnilk
**Price:** ¥5396
**Availability:** ✅ In Stock

## Summary

> 💧 Seal it once, forget it forever – the invisible waterproof guardian for your home!

## Quick Answers

- **What is this?** Transparent Polyurethane Waterproof Coating Agent: Invisible Clear Waterproof Sealant - 300g Anti-Leaking Adhesive Agent Coating Tile Trapping Repair Wall Mending Agent Glue for Home Roof Bathroom by alnilk
- **How much does it cost?** ¥5396 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/570258339-transparent-polyurethane-waterproof-coating-agent-invisible-clear-waterproof-sealant-300g)

## Best For

- alnilk enthusiasts

## Why This Product

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

## Key Features

- • **Weatherproof Warrior:** Withstands extreme temperatures and harsh conditions for reliable indoor and outdoor protection.
- • **Effortless Application:** Brush-on formula with quick drying for hassle-free sealing and long-lasting leak prevention.
- • **Versatile Surface Master:** Bonds seamlessly with cement, metal, tile, wood, plastic, and more for all your home and outdoor needs.
- • **Long-Lasting Leak Defense:** Powerful polyurethane formula ensures durable protection against cracks, leaks, and water damage.
- • **Invisible Shield, Visible Results:** Crystal-clear finish that never yellows, keeping your repairs discreet and professional.

## Overview

This 300g transparent polyurethane waterproof coating agent offers a high-viscosity, fast-curing sealant that provides durable, invisible protection against leaks and cracks. Suitable for multiple surfaces including cement, metal, tile, and wood, it withstands extreme temperatures and is ideal for both indoor and outdoor repairs. Easy to apply with a brush, it dries within 3-6 hours, ensuring a long-lasting, crystal-clear waterproof barrier.

## Description

Transparent Polyurethane Waterproof Coating Agent: Invisible Clear Waterproof Sealant - 300g Anti-Leaking Adhesive Agent Coating Tile Trapping Repair Wall Mending Agent Glue for Home Roof Bathroom : desertcart.co.uk: DIY & Tools

Review: Recommend - Good price
Review: Good product - Doesn't look much to start with but very effective to seal small holes in plastic roof sheets

## Features

- Powerful and Long-lasting Protection - Our invisible waterproof sealant utilizes a strong adhesive and sealing effect that immediately provides long-lasting protection against leaks, cracks, and damage. Its transparent finish remains crystal clear without yellowing over time.
- Excellent Quality - Invisible Waterproof Agent helps you to easily fix water leaks. Clean the foundation surfaces before applying the waterproof sealant to ensure that the foundation surfaces are dry.After applying, wait 3-6 hours for it to set completely.
- Versatile and Reliable - Suitable for various surfaces including cement, metal, ceramic tile, marble, wood, plastic, and more, this waterproof sealant offers exceptional adhesion and effectiveness. It can be used in a wide range of applications such as toilet gaps, ceramic tile gaps, windowsills, balconies, exterior walls, and more.
- Enhanced Waterproof Formula - Featuring an upgraded formula with higher viscosity and stronger adhesion, this sealant ensures remarkable waterproof and leak-proof performance. It can withstand high and low temperatures, making it suitable for both indoor and outdoor use.
- Easy Application and Quick Drying - Our waterproof sealant is designed for effortless application. Simply use a brush to evenly apply the sealant on the surface of leaks or cracks. With its quick-drying ingredients, it facilitates easy plastering, repairing, and sealing while providing long-lasting results.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CG95NNR7 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 42,748 in DIY & Tools ( See Top 100 in DIY & Tools ) 685 in Sealers |
| Colour | clear |
| Customer Reviews | 4.1 4.1 out of 5 stars (136) |
| Date First Available | 22 Aug. 2023 |
| Included components | NO |
| Item Weight | 300 g |
| Manufacturer | Shantou Cross-border Premium Products E-commerce Co |
| Manufacturer reference | 98LOX |
| Material | Polyurethane |
| Package Dimensions | 9.3 x 7.8 x 7.6 cm; 300 g |
| Part number | 98LOX |
| Style | Compact |

## Product Details

- **Brand:** ALNILK
- **Item weight:** 300 Grams
- **Material:** Polyurethane
- **Style:** Compact
- **Water resistance level:** Waterproof

## Images

![Transparent Polyurethane Waterproof Coating Agent: Invisible Clear Waterproof Sealant - 300g Anti-Leaking Adhesive Agent Coating Tile Trapping Repair Wall Mending Agent Glue for Home Roof Bathroom - Image 1](https://m.media-amazon.com/images/I/61qhNqqhiKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Recommend
*by J***S on 17 September 2025*

Good price

### ⭐⭐⭐⭐ Good product
*by K***R on 26 October 2024*

Doesn't look much to start with but very effective to seal small holes in plastic roof sheets

### ⭐⭐⭐⭐⭐ 100% waterproof
*by A***R on 2 August 2025*

Very good product definitely does what it says on the tin and a good price

## Frequently Bought Together

- Transparent Polyurethane Waterproof Coating Agent: Invisible Clear Waterproof Sealant - 300g Anti-Leaking Adhesive Agent Coating Tile Trapping Repair Wall Mending Agent Glue for Home Roof Bathroom
- Harris Essentials Walls & Ceilings Paint Brushes, 3 Brush Pack, 1", 1.5", 2",Grey

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**Shop now:** [https://www.desertcart.jp/products/570258339-transparent-polyurethane-waterproof-coating-agent-invisible-clear-waterproof-sealant-300g](https://www.desertcart.jp/products/570258339-transparent-polyurethane-waterproof-coating-agent-invisible-clear-waterproof-sealant-300g)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-02*