---
product_id: 11308367
title: "Oatey 30115 Hercules Boiler Liquid Stop Leak, 1-Quart"
brand: "oatey"
price: "€ 46.28"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.it/products/11308367-oatey-30115-hercules-boiler-liquid-stop-leak-1-quart
store_origin: IT
region: Italy
---

# 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:** € 46.28
**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?** € 46.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/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) {
    P.when('A').execute(function(A){
    A.on('a:truncate:po-attribute-truncate-2:updated', function(data) {
    var isTruncated = !data.truncateInstance.getIfTextFits();
    var seeMoreElement = document.getElementById('po-attribute-see-more-id-2');
    if(seeMoreElement) {
    seeMoreElement.style.display = isTruncated ?  ''  :  'none';
    }
    })
    });
}));  Seals and repairs cracks and leaks in steam and hot water systems, safe for systems with plastic or rubber components, no odors, priming, or foamingSeals and repairs cracks and leaks in steam and hot water systems, safe…    See more
- **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

---

## 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.it/products/11308367-oatey-30115-hercules-boiler-liquid-stop-leak-1-quart](https://www.desertcart.it/products/11308367-oatey-30115-hercules-boiler-liquid-stop-leak-1-quart)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-05-08*