---
product_id: 660278115
title: "UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating"
brand: "unionsky"
price: "$26.37"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/660278115-unionsky300g-invisible-waterproof-agent-waterproof-insulating-sealant-and-leak-repair
store_origin: US
region: United States of America
---

# 300g capacity Heat-resistant Quick-drying UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating

**Brand:** unionsky
**Price:** $26.37
**Availability:** ✅ In Stock

## Summary

> 💪 Seal it, don’t leak it! Your ultimate waterproofing solution.

## Quick Answers

- **What is this?** UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating by unionsky
- **How much does it cost?** $26.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/660278115-unionsky300g-invisible-waterproof-agent-waterproof-insulating-sealant-and-leak-repair)

## Best For

- unionsky enthusiasts

## Why This Product

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

## Key Features

- • **Seal the Deal:** Advanced waterproofing formula penetrates and protects.
- • **Time is Money:** Quick-drying for fast application and long-lasting results.
- • **Weather Warrior:** Withstands extreme temperatures without sagging or cracking.
- • **Economical Choice:** Long-term leak prevention saves you time and money.
- • **Versatile Protector:** Ideal for a variety of surfaces and applications.

## Overview

The UNIONSKY 300g Invisible Waterproof Agent is a cutting-edge sealant designed to provide a transparent, durable, and heat-resistant waterproof coating. Its advanced formula effectively seals joints, cracks, and leaks, ensuring comprehensive protection for various surfaces, including roofs, walls, and more. Quick-drying and versatile, this sealant is perfect for both professional and DIY applications, making it an economical choice for long-term leak prevention.

## Description

UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating

## Features

- Transparent Waterproof Sealant: Advanced leak prevention formula is water- and rubber-based, designed to penetrate joints, cracks, and leaks, effectively sealing any damaged surfaces. It forms a waterproof and protective coating around the treated area for comprehensive protection.
- Durable Waterproofing Solution: Featuring quick-drying ingredients, this waterproof sealant ensures easy application and long-lasting results. A durable waterproof layer forms within 24-48 hours and strengthens over time for maximum protection.
- Heat-Resistant Performance: Designed to withstand extreme conditions, this anti-leakage agent won’t sag or drip in the summer heat, nor will it crack or flake in the cold winter.
- Economical Leak Prevention: Save time, money, and energy with this reliable sealant. It offers long-term protection for cracks, window sills, toilets, walls, and external pipelines, sealing leaks efficiently.
- Versatile Usage: Perfect for use on flat or sloped roofs, exterior walls, foundations, sheds, basements, metal, wood, concrete, gutters, skylights, chimneys, PVC joints, windows, RVs, swimming pools, bathrooms, and more.

## Product Details

- **Material:** Rubber
- **Brand:** UNIONSKY
- **Style:** 300g
- **Compatible material:** Rubber
- **Water resistance level:** Waterproof

## Images

![UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating - Image 1](https://m.media-amazon.com/images/I/61vCy--ZqGL.jpg)
![UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating - Image 2](https://m.media-amazon.com/images/I/71bI5fRl+UL.jpg)
![UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating - Image 3](https://m.media-amazon.com/images/I/815p8I+uNIL.jpg)
![UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating - Image 4](https://m.media-amazon.com/images/I/71n6cMZesZL.jpg)
![UNIONSKY300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating - Image 5](https://m.media-amazon.com/images/I/81BkZvcgBIL.jpg)

## Available Options

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

## Frequently Bought Together

- UNIONSKY 300g Invisible Waterproof Agent, Waterproof Insulating Sealant & Leak Repair Adhesive – Transparent, Insulating, Anti-Leak Coating
- Polar Specialist Coatings Premium Leak Seal Grey Paint - 500ml - Instant Waterproof Roof Sealant - Ideal for Leaks, Cracks & Roof Repair - Concrete, Brick, Metal, Drainpipes & Gutters - Easy to Apply
- Gorilla Glue - Waterproof Patch & Seal Tape 101.6mm x 3.04m

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/660278115-unionsky300g-invisible-waterproof-agent-waterproof-insulating-sealant-and-leak-repair](https://www.desertcart.us/products/660278115-unionsky300g-invisible-waterproof-agent-waterproof-insulating-sealant-and-leak-repair)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-17*