---
product_id: 35932995
title: "15620 Real-Tuff Heavy Duty PTFE Pipe Thread Sealant, White, 8 oz."
brand: "hercules"
price: "€ 21.83"
currency: EUR
in_stock: true
reviews_count: 11
category: "Hercules"
url: https://www.desertcart.ie/products/35932995-15620-real-tuff-heavy-duty-ptfe-pipe-thread-sealant-white
store_origin: IE
region: Ireland
---

# Instant leak-free seals on metals & plastics Withstands 50°F to 550°F temps 12,000 PSI max hydraulic pressure 15620 Real-Tuff Heavy Duty PTFE Pipe Thread Sealant, White, 8 oz.

**Brand:** hercules
**Price:** € 21.83
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seal like a pro, leak like a no-show!

## Quick Answers

- **What is this?** 15620 Real-Tuff Heavy Duty PTFE Pipe Thread Sealant, White, 8 oz. by hercules
- **How much does it cost?** € 21.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/35932995-15620-real-tuff-heavy-duty-ptfe-pipe-thread-sealant-white)

## Best For

- hercules enthusiasts

## Why This Product

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

## Key Features

- • **Ready When You Are:** Soft set with zero cure time—test and use immediately, no downtime.
- • **Heavy-Duty Strength:** Engineered for extreme pressure up to 12,000 PSI—no leaks, no compromises.
- • **Temperature Resilience:** Performs flawlessly from chilly 50°F to scorching 550°F environments.
- • **Universal Compatibility:** Seals flawlessly on all metals plus PVC, CPVC, and ABS plastics—one sealant to rule them all.
- • **Chemical & Movement Proof:** Resists acids, alkalis, ketones, and holds tight through expansion and contraction.

## Overview

Hercules 15620 Real-Tuff is a premium 8 oz. white PTFE thread sealant designed for heavy-duty, high-pressure applications. It creates instant, leak-proof seals on a wide range of materials including metals and plastics, withstands extreme temperatures from 50°F to 550°F, and endures hydraulic pressures up to 12,000 PSI. Non-flammable and free of heavy metals, it sets soft with no cure time, making it the go-to choice for professionals demanding reliable, durable pipe thread sealing.

## Description

Hercules Real Tuff is a multi-purpose, heavy-duty white PTFE thread sealant that uses a unique system of fine-grain PTFE particles to fill cracks and thread imperfections. Designed for use in high pressure applications, the sealant forms durable, leak-free seals so that joints can be tested and put into service immediately. It can be used on lines carrying water, steam, caustics and dilute acids and is compatible with all metals and PVC, CPVC and ABS plastics. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.

Review: OIL COOLER BRASS TO ALUMINUM FITTINGS. NO LEAKS NOW. - Generally, used on high pressure natural gas metal lines ( black pipe ). Used orange sealant. Used blue sealant, used black sealant, used thread tape, at 50 PSI on remote external oil cooler for air cooled 2332cc engine would leak at fittings. To create more space between high torque starter, and cooler, down sized from 72 plate to 48 plate cooler. Brand new cooler, same with brass fittings. 12 yrs with 72 plate, no leaks. Friend suggested using Hercules Real Tuff sealant. Read up. Liked what I read. Brush in can/bottle is stiff as an oid straw broom. Worthless. This stuff is thicker than cake frosting. A little bit, goes a long way. After using Brake Kleen and dry cloth to clean fittings, Used nitrile glove on hand, to dab a bit of sealant on male fitting. Using flare wrenches, tightened things up. Wiped excess sealant away. Took car for ride ... No leaks ... not a micro drop of oil. This stuff gets everywhere ! I used hand/body lotion mixed with liquid hand wash dish soap. The lotion makes a difference. Still have to work at picking and scrapping off skin and clothes. Product does what it promises to do.
Review: Good product - Good product

## Features

- 8 oz. PTFE thread sealant
- Multi-purpose, heavy-duty sealant fills gaps and imperfections
- For use on all metals, PVC, CPVC and ABS plastics
- Forms leak-free joints that can be used immediately
- Suitable for use with lines carrying air, liquid (including drinking water) and gas, except for oxygen
- Withstands temperatures from 50°F to 550°F
- Maximum working hydraulic pressure of 12,000 PSI and 2,600 PSI for air/steam
- Will not run or drip from joints, is non-flammable, and contains no heavy metals or volatile solvents
- Soft set with no cure time required
- Holds tight against expansion and contraction and resists strong acids, alkalis and ketones

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BPOOXI |
| Best Sellers Rank | #10,602 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Industrial Thread Sealants |
| Brand | Hercules |
| Color | White |
| Date First Available | August 17, 2005 |
| Global Trade Identification Number | 00032628156203 |
| Is Discontinued By Manufacturer | No |
| Item Form | Paste |
| Item Weight | 14.1 ounces |
| Item dimensions L x W x H | 2.6 x 2.6 x 3.4 inches |
| Item model number | 15620 |
| Manufacturer | Oatey |
| Material | Polytetrafluoroethylene |
| Number of Items | 1 |
| Product Dimensions | 2.6 x 2.6 x 3.4 inches |
| Style | Ptfe |
| Surface Recommendation | Various surfaces, particularly those requiring sealing |
| UPC | 032628156203 |
| Unit Count | 8.0 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Hercules
- **Item Weight:** 0.88 Pounds
- **Item dimensions L x W x H:** 2.6 x 2.6 x 3.4 inches
- **Material:** Polytetrafluoroethylene
- **Style:** Ptfe

## Images

![15620 Real-Tuff Heavy Duty PTFE Pipe Thread Sealant, White, 8 oz. - Image 1](https://m.media-amazon.com/images/I/81LgwdnzzLS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ OIL COOLER BRASS TO ALUMINUM FITTINGS. NO LEAKS NOW.
*by T***R on August 2, 2023*

Generally, used on high pressure natural gas metal lines ( black pipe ). Used orange sealant. Used blue sealant, used black sealant, used thread tape, at 50 PSI on remote external oil cooler for air cooled 2332cc engine would leak at fittings. To create more space between high torque starter, and cooler, down sized from 72 plate to 48 plate cooler. Brand new cooler, same with brass fittings. 12 yrs with 72 plate, no leaks. Friend suggested using Hercules Real Tuff sealant. Read up. Liked what I read. Brush in can/bottle is stiff as an oid straw broom. Worthless. This stuff is thicker than cake frosting. A little bit, goes a long way. After using Brake Kleen and dry cloth to clean fittings, Used nitrile glove on hand, to dab a bit of sealant on male fitting. Using flare wrenches, tightened things up. Wiped excess sealant away. Took car for ride ... No leaks ... not a micro drop of oil. This stuff gets everywhere ! I used hand/body lotion mixed with liquid hand wash dish soap. The lotion makes a difference. Still have to work at picking and scrapping off skin and clothes. Product does what it promises to do.

### ⭐⭐⭐⭐⭐ Good product
*by B***M on February 17, 2026*

Good product

### ⭐⭐⭐⭐⭐ Works great
*by J***E on December 27, 2025*

This anti seize is good stuff.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-13*