---
product_id: 489244211
title: "Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength"
brand: "loctite"
price: "€ 64.64"
currency: EUR
in_stock: true
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.ie/products/489244211-loctite-442-21448-50ml-retaining-compound638-maximum-strength
store_origin: IE
region: Ireland
---

# Waterproof durability Maximum strength bonding Metal-compatible formula Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength

**Brand:** loctite
**Price:** € 64.64
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with Loctite’s ultimate retaining compound!

## Quick Answers

- **What is this?** Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength by loctite
- **How much does it cost?** € 64.64 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/489244211-loctite-442-21448-50ml-retaining-compound638-maximum-strength)

## 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

- • **Trusted by Pros:** Rated 4.8/5 by 650+ users who rely on it for permanent fixes.
- • **Precision Application:** 50ml bottle designed for controlled, mess-free use on critical repairs.
- • **Unmatched Holding Power:** Locks metal parts with industrial-grade strength for lasting reliability.
- • **Versatile Compatibility:** Formulated with acrylic and polyurethane to bond seamlessly with metal.
- • **Waterproof & Weatherproof:** Seals and protects joints against moisture and harsh conditions.

## Overview

Loctite 442-21448 is a 50ml maximum strength retaining compound designed for permanent, waterproof bonding of metal parts. Trusted by professionals and DIYers alike, it offers industrial-grade durability and precision application, making it ideal for critical repairs such as wheel bearings and hubs.

## Description

Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength : desertcart.co.uk: DIY & Tools

Review: Crazy low price for amazing product - Absolutely amazing product and legit the real deal. This is like Loctite 609 s bigger stronger brother. Made as a retaining compound NOT glue like some dipsticks mentioned below. This also works amazing for installing sights on firearms and rifle rails. Even the screws but know heavy heat will be needed if you ever have to remove it. Also note the bottle are largest because the product needs 50% air in bottle to NOT solidify, so those dummy's saying it's half empty Clearly have zero experience with these products
Review: Bushings - I tried Loctite 242 on an Oilite bushing and it did not hold when I went to machine it in place. I reworked with this and it held just fine. This is the stuff to use.

## Features

- Causes serious eye damage.
- Causes skin irritation.
- May cause an allergic skin reaction.
- Suspected of causing cancer.
- Waterproof

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000O01EV0 |
| Brand | Loctite |
| Colour | Green |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 663 Reviews |
| Global Trade Identification Number | 00079340006393, 00079340214484 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 50 Millilitres |
| Item Weight | 82 g |
| Item form | Liquid |
| Item package quantity | 1 |
| Manufacturer | Loctite |
| Manufacturer Part Number | 21448 |
| Material | Acrylic , Polyurethane |
| Model Number | 21448 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Waterproof |
| Special feature | Waterproof |
| UPC | 079340214484 079340006393 |
| Unit Count | 50.0 millilitre |

## Product Details

- **Brand:** Loctite
- **Colour:** Green
- **Item form:** Liquid
- **Material:** Acrylic, Polyurethane
- **Special feature:** Waterproof

## Images

![Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength - Image 1](https://m.media-amazon.com/images/I/412NF8GNOhL.jpg)

## Questions & Answers

**Q: How much should a new bottle weigh? Mine feels kind of empty.**
A: The bottle should be half empty. The air is required to prevent it from hardening in the bottle.

**Q: What Country is this product make in ?**
A: India

**Q: Would this work on O.D. Rubber seal surface to metal housing? (or only metal to metal?**
A: It's only designed for metal to metal

**Q: Does well does "638" provide sealing properties?  Thank you**
A: Real non counterfeit loctite has a QR verification code on the bottle I returned mine

## Customer Reviews

### ⭐⭐⭐⭐⭐ Crazy low price for amazing product
*by T***R on 1 October 2026*

Absolutely amazing product and legit the real deal. This is like Loctite 609 s bigger stronger brother. Made as a retaining compound NOT glue like some dipsticks mentioned below. This also works amazing for installing sights on firearms and rifle rails. Even the screws but know heavy heat will be needed if you ever have to remove it. Also note the bottle are largest because the product needs 50% air in bottle to NOT solidify, so those dummy's saying it's half empty Clearly have zero experience with these products

### ⭐⭐⭐⭐⭐ Bushings
*by R***S on 19 September 2026*

I tried Loctite 242 on an Oilite bushing and it did not hold when I went to machine it in place. I reworked with this and it held just fine. This is the stuff to use.

### ⭐⭐⭐⭐⭐ This stuff makes a permanent bond.
*by D***E on 4 May 2026*

This version of Loctite is a permanent metal sealant. To remove the nut or bolt you must heat. Great for applications that require a permanent solution (such as rivet nuts).

## Frequently Bought Together

- Loctite 21448 Green 638 High Strength Retaining Compound, 50 mL Bottle
- Loctite 620 442-62040 50ml Retaining Compound, High Temperature, Green Color
- 21347 Loctite Primer N 7649, Aerosol Can, 25g, Green

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-10-19*