---
product_id: 11308367
title: "Oatey 30115 Hercules Boiler Liquid Stop Leak, 1-Quart"
brand: "oatey"
price: "€ 56.56"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.de/products/11308367-oatey-30115-hercules-boiler-liquid-stop-leak-1-quart
store_origin: DE
region: Germany
---

# Heat-resistant & pressure-proof Safe for plastic & rubber parts Seals cracks & leaks instantly Oatey 30115 Hercules Boiler Liquid Stop Leak, 1-Quart

**Brand:** oatey
**Price:** € 56.56
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stop leaks like a pro—because your boiler deserves the best!

## Quick Answers

- **What is this?** Oatey 30115 Hercules Boiler Liquid Stop Leak, 1-Quart by oatey
- **How much does it cost?** € 56.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/11308367-oatey-30115-hercules-boiler-liquid-stop-leak-1-quart)

## Best For

- oatey enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Safe Formula:** Contains no petroleum distillates, safe for plastic and rubber components
- • **Instant Leak Repair:** Seals and repairs cracks in steam and hot water systems without delay
- • **Heat & Pressure Tough:** Expands and contracts with heat, resisting pressure and boiler cleaners
- • **Durable & Long-Lasting:** Transforms into a strong solid substance that withstands system demands
- • **Odorless & Hassle-Free:** No odors, no priming, no foaming—easy and clean application every time

## Overview

Oatey 30115 Hercules Boiler Liquid Stop Leak is a 1-quart, odorless, and easy-to-use solution designed to seal and repair cracks and leaks in steam and hot water systems. Its unique formula vaporizes upon contact with leaking water, creating a durable, heat-resistant seal that safely works with plastic and rubber components, ensuring long-lasting protection without the mess.

## Description

Oatey 30115 Hercules Boiler Liquid Stop Leak, 1-Quart

## Features

- The product is easy to use
- The product is highly durable and handle
- The product is manufactured in China
- Seals and repairs cracks and leaks in steam and hot water systems
- Seals and repairs cracks and leaks in steam and hot water systems
- No odors, no priming, no foaming
- As the water leaks through the crack, it is vaporized and the oxygen in the air transforms the boiler liquid into a strong, solid substance
- Contains no petroleum distillates and is safe to use in boilers and systems with plastic or rubber components
- Tough seal expands and contracts with heat, resists pressure and is not affected by boiler cleaners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Oatey |
| Product Dimensions | 4"W x 9"H |
| Special Feature | Seals and repairs cracks and leaks in steam and hot water systems, safe for systems with plastic or rubber components, no odors, priming, or foaming |
| Color | Purple |
| Is Electric | No |
| Manufacturer | Oatey |
| Item Depth | 9 inches |
| UPC | 787461491744 032628301153 |
| Global Trade Identification Number | 00032628301153 |
| Part Number | 30115 |
| Item Weight | 2.39 pounds |
| Item model number | 30115 |
| Is Discontinued By Manufacturer | No |
| Size | 1 qt. |
| Item Package Quantity | 1 |
| Special Features | Seals and repairs cracks and leaks in steam and hot water systems, safe for systems with plastic or rubber components, no odors, priming, or foaming |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Oatey
- **Product Dimensions:** 4"W x 9"H
- **Special Feature:** (function(f) {var _np=(window.P._namespace("DetailPageProductOverviewTemplatesJava"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) {
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- **Color:** Purple
- **Is Electric:** No

## Images

![Oatey 30115 Hercules Boiler Liquid Stop Leak, 1-Quart - Image 1](https://m.media-amazon.com/images/I/61t7SLYVsZL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    did the trick! boiler running great!
  

*by A***Z on Reviewed in the United States on July 21, 2022*

7/20/22our boiler would leak 40 gal overnight. for the last 2 weeks i only ran it when we took showers, and would shut the water feed off right after. I'd still have about 20 gal on the basement floor after a few days. the internal leaks started messing with ignition and i had to constantly reset the control. i thought I'd give this a shot to help us limp this furnace 2-3 months till the new furnace is in.poured it in, got the boiler running, let it go overnight, it stopped the leaks completely and I'm amazed. i will come back and update how long it lasts, but I'm hopeful from reading other reviews.update: 8/10/22 after 3 weeks, a small leak has reappeared today, but only about 6 gal leaked in 24hrs. going to try another quart.boiler replacement is a month away, so we're just trying to limp this. $10 got us 3 weeks leak free.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Fixed my Hardy woodstove!
  

*by K***Y on Reviewed in the United States on February 22, 2024*

I am so grateful for this stuff. I had an absolutely terrible leak from the water tank into the firebox and it wouldn't hold the hot water. I was between having to spend hundreds on having someone weld my stove and having to get another one. Someone on a facebook group recommended this and it fixed my leak almost immediately. Thank you!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Worked decent, not 100% but leak decreased
  

*by A***R on Reviewed in the United States on January 15, 2024*

Went from 1 qt a hour leaking from my boiler to just under a cup a hr.  Replacing boiler in the spring, just hope it goes till then

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-03*