---
product_id: 489244211
title: "Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength"
brand: "loctite"
price: "S$92"
currency: SGD
in_stock: true
reviews_count: 5
category: "Loctite"
url: https://www.desertcart.sg/products/489244211-loctite-442-21448-50ml-retaining-compound638-maximum-strength
store_origin: SG
region: Singapore
---

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

**Brand:** loctite
**Price:** S$92
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock it down with Loctite’s Maximum Strength Retaining Compound!

## Quick Answers

- **What is this?** Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength by loctite
- **How much does it cost?** S$92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/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

- • **Precision Application:** Compact 50ml bottle designed for easy, mess-free use on all metal surfaces.
- • **Waterproof Resilience:** Built to withstand moisture, ensuring long-lasting performance in any environment.
- • **Unmatched Holding Power:** Experience industrial-grade strength that locks metal parts securely.
- • **Trusted by Professionals:** Rated 4.8/5 by over 600 users who demand reliability and quality.
- • **Versatile Acrylic-Polyurethane Blend:** Advanced formula delivers superior adhesion and chemical resistance.

## Overview

Loctite 442-21448 50ml Retaining Compound 638 offers a powerful, waterproof adhesive solution specifically formulated for metal bonding. Its industrial-strength acrylic-polyurethane formula ensures durable, long-lasting hold, trusted by professionals worldwide. Compact and easy to apply, this green liquid adhesive is perfect for precision repairs and assembly tasks requiring maximum strength and moisture resistance.

## Description

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

Review: Seems authentic and great bonding. - Yes - from India. Worked perfect for bonding an old dirt bike (KDX200) flywheel to an abused shaft. Bike has been driven enough to instill confidence in the repair. probably used 2% on this repair.
Review: Works like it should. Made for India market so the label looks odd. - Worked like it should

## 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 | 4.8 out of 5 stars 631 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 |
| 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

### ⭐⭐⭐⭐⭐ Seems authentic and great bonding.
*by P***R on 9 November 2025*

Yes - from India. Worked perfect for bonding an old dirt bike (KDX200) flywheel to an abused shaft. Bike has been driven enough to instill confidence in the repair. probably used 2% on this repair.

### ⭐⭐⭐⭐⭐ Works like it should. Made for India market so the label looks odd.
*by X***X on 10 April 2026*

Worked like it should

### ⭐⭐⭐⭐⭐ This is a gap filling loctite product and is permanent
*by L***E on 20 May 2026*

Arrived in perfect condition.

## 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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**Shop now:** [https://www.desertcart.sg/products/489244211-loctite-442-21448-50ml-retaining-compound638-maximum-strength](https://www.desertcart.sg/products/489244211-loctite-442-21448-50ml-retaining-compound638-maximum-strength)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-06-18*