---
product_id: 49905811
title: "577, Medium Strength Industrial Adhesive for Thread Sealing, Universal Liquid Adhesive for Pipes and Metal Threads, Chemically Resistant Thread Sealant, 50ml"
brand: "loctite"
price: "HK$466"
currency: HKD
in_stock: true
reviews_count: 13
category: "Loctite"
url: https://www.desertcart.hk/products/49905811-577-medium-strength-industrial-adhesive-for-thread-sealing-universal-liquid
store_origin: HK
region: Hong Kong
---

# Thixotropic non-run formula Heat & chemical resistant Medium strength for secure joints 577, Medium Strength Industrial Adhesive for Thread Sealing, Universal Liquid Adhesive for Pipes and Metal Threads, Chemically Resistant Thread Sealant, 50ml

**Brand:** loctite
**Price:** HK$466
**Availability:** ✅ In Stock

## Summary

> 🛠️ Lock it down with LOCTITE 577 — the ultimate seal for the modern metal pro!

## Quick Answers

- **What is this?** 577, Medium Strength Industrial Adhesive for Thread Sealing, Universal Liquid Adhesive for Pipes and Metal Threads, Chemically Resistant Thread Sealant, 50ml by loctite
- **How much does it cost?** HK$466 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/49905811-577-medium-strength-industrial-adhesive-for-thread-sealing-universal-liquid)

## Best For

- loctite enthusiasts

## Why This Product

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

## Key Features

- • **Precision Application:** Thixotropic formula prevents run-off for mess-free, 360° thread coverage
- • **Heat & Chemical Warrior:** Withstands high temps and harsh chemicals without breaking down
- • **Seal & Secure in One Go:** Instantly fills thread gaps for leak-proof pipe connections
- • **Trusted Industrial Strength:** 50ml of Henkel’s proven acrylate adhesive, rated 4.6 stars by pros
- • **Universal Metal Compatibility:** Works flawlessly on stainless steel, brass, copper & more

## Overview

LOCTITE 577 is a 50ml medium-strength acrylate adhesive designed for sealing and securing cylindrical and tapered metal threads. Its thixotropic, non-run formula ensures easy, precise application while providing immediate sealing against low pressures. Compatible with both passive and active metals like stainless steel and copper, it resists heat and chemical stress, making it a reliable choice for professional-grade pipe and fitting connections.

## Description

Product Description LOCTITE 577 - Universal thread sealantLOCTITE's thread sealant is medium strength and can be used universally for conical and cylindrical threaded connections. The heat resistant metal adhesive seals and secures at the same time: gaps are filled and an immediate sealing effect against low pressures is achieved for metal pipe connections. Although the thread sealant is liquid, the thixotropic properties prevent the adhesive from running off for easy application. As a universally applicable sealant, the metal adhesive is heat resistant and withstands both chemical and thermal stresses. The plumbing sealant can be used for all passive metals such as stainless steel and for active metals such as copper.To use, clean all surfaces with a solvent-based cleaner and allow to dry. In case of inactive metal surfaces or a too slow curing speed, spray with an activator (LOCTITE SF 7471 or SF 7649). Apply the adhesive 360° in a ring on the end of the male thread, leaving the first thread free. Spread adhesive down to the top of the thread to fill the gaps. For larger threads, adjust the quantity accordingly and also apply the product 360° in a ring on the internal thread. Screw-in pipe threads as usual and tighten with a tool until alignment is correct. With properly tightened connections, an immediate sealing effect against low pressures is achieved. For maximum pressure and solvent resistance, allow the product to cure for at least 24 hours.The Product Benefits at a Glance:For securing and sealing threadsFor active and passive metalsEasy application and immediate sealing effectBased on acrylateColour: YellowFormat: 50ml Legal Disclaimer packaging may vary

Review: Lock tight - Very good quality Works well no air leaks
Review: Brilliant stuff - Absolutely brilliant, expensive but does the job so worth the expense

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Contains isocyanates. May produce an allergic reaction.
- May cause an allergic skin reaction.
- May cause respiratory irritation.
- Suspected of causing cancer.
- Medium strength joints - The adhesive glue is medium strength and ideal for sealing cylindrical and tapered thread pairings commonly found on pipes and fittings
- Securing and sealing - The thread sealant secures and seals at the same time: The gaps in the thread are filled and the sealing effect is quickly achieved
- For metal - The sealant is suitable for threaded connections made of passive metals, especially stainless steel, as well as active metals such as brass or copper
- Chemical resistance - The application is very easy, as the metal adhesive does not runoff. LOCTITE also made the thread sealant high temp and chemical stress-resistant
- Package contents - LOCTITE 577, medium strength adhesive solution for thread sealing, based on acrylate, for securing and sealing pipes and threads. Easy to use, yellow, 50ml

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002T8WZ8G |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 8,499 in DIY & Tools ( See Top 100 in DIY & Tools ) 197 in Sealers |
| Colour | Yellow |
| Customer Reviews | 4.6 4.6 out of 5 stars (468) |
| Date First Available | 13 Mar. 2017 |
| Included Components | 1 |
| Item Package Quantity | 1 |
| Item Weight | 90 g |
| Item model number | 577 |
| Manufacturer | Henkel |
| Material | Acrylate |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | 2068186 |
| Product Dimensions | 4.7 x 4.9 x 14.1 cm; 90 g |
| Size | 50 ml |
| Special Features | Heat Resistant |
| Style | Industrial |
| Volume | 50 Millilitres |

## Product Details

- **Brand:** Loctite
- **Colour:** Yellow
- **Item form:** Liquid
- **Material:** Acrylate
- **Special feature:** Heat Resistant

## Images

![577, Medium Strength Industrial Adhesive for Thread Sealing, Universal Liquid Adhesive for Pipes and Metal Threads, Chemically Resistant Thread Sealant, 50ml - Image 1](https://m.media-amazon.com/images/I/71Lajf9fkOL.jpg)

## Questions & Answers

**Q: Is it ok for central heating jobs**
A: Should be no problem for central heating

**Q: Is this suitable for drinking water systems?**
A: Yes LOCTITE 577 is suitable for use with domestic water systems and is approved for use with drinking water by WRAS when used with LOCTITE SF 7649 activator.

**Q: Is there a shelf life for this product I.e a use by date?**
A: I have used this at over 5yrs old and still works well, sealing water and vacuum pipes and compressed air pipes at 11bar pressure, have used this in my job for the last 20 years and can’t find anything to beat it

**Q: How long would be the recommended cure time before filling up a heating system with 1 bar water pressure please**
A: I used this on an oil sump differential. I used the catalyst spray to speed up the setting of the gel.
If warm (room temp) it will start to gel within minutes. 
Leave for 30mins minimum. Leave longer (overnight) if you want to be sure.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Lock tight
*by J***S on 27 April 2025*

Very good quality Works well no air leaks

### ⭐⭐⭐⭐⭐ Brilliant stuff
*by A***R on 28 June 2025*

Absolutely brilliant, expensive but does the job so worth the expense

### ⭐⭐⭐⭐⭐ perfect stuff....wont use anything else
*by A***R on 11 July 2022*

so i work on steam heated industrial washers and dryers and got fed up with ptfe tape being a pain to apply or it failing on the first week.. this stuff is easy to apply and sets almost right away ,can handle the high temps from steam and holds the joint perfectly.. and u can still remove the threaded joint and easy to clean off.. great on any compression olive fittings... its a little expensive but then so would having to restart the whole job a week later. its never failed to do the job..

## Frequently Bought Together

- LOCTITE 577, Medium Strength Industrial Adhesive for Thread Sealing, Universal Liquid Adhesive for Pipes and Metal Threads, Chemically Resistant Thread Sealant, 50ml
- LOCTITE 55 Pipe Thread Sealant, Non Curing Plumbers Tape for Plumbing Pipes and Fittings, Reliable Fast Action Cord for Metal and Plastic, 160m
- LOCTITE 55 Pipe Thread Sealant, Non Curing Thread Sealant for Plumbing Pipes and Fittings, Reliable Fast Action Pipe Sealant for Metal and Plastic, 50m

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-24*