---
product_id: 17520483
title: "21448 Green 638 High Strength Retaining Compound, 50 mL Bottle"
brand: "loctite"
price: "€ 28.87"
currency: EUR
in_stock: true
reviews_count: 13
category: "Loctite"
url: https://www.desertcart.de/products/17520483-21448-green-638-high-strength-retaining-compound-50-ml-bottle
store_origin: DE
region: Germany
---

# High-strength green formula Full cure in 5 minutes Optimized for alloy steel bonding 21448 Green 638 High Strength Retaining Compound, 50 mL Bottle

**Brand:** loctite
**Price:** € 28.87
**Availability:** ✅ In Stock

## Summary

> 🛠️ Lock it down fast with Loctite 21448 – where strength meets speed!

## Quick Answers

- **What is this?** 21448 Green 638 High Strength Retaining Compound, 50 mL Bottle by loctite
- **How much does it cost?** € 28.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/17520483-21448-green-638-high-strength-retaining-compound-50-ml-bottle)

## 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

- • **Rapid 5-Minute Cure:** Get back to work faster with a quick-setting formula that locks components securely in just minutes.
- • **Precision 50 mL Bottle:** Compact and efficient packaging designed for professional use without waste or mess.
- • **Authentic Green Formula:** Distinctive green liquid with a vinegar scent guarantees genuine, high-quality performance every time.
- • **Trusted Industry Leader:** Loctite’s #3 ranked retaining compound trusted by thousands of professionals worldwide.
- • **Unmatched Bond Strength:** Engineered for high-performance retention on alloy steel, ensuring your repairs hold under pressure.

## Overview

Loctite 21448 Green 638 is a high-strength retaining compound specially formulated for alloy steel applications. Packaged in a 50 mL bottle, it cures fully in 5 minutes, providing rapid, durable bonding ideal for professional repairs. Recognized globally and ranked #3 in retaining compounds, this medium-viscosity green liquid ensures reliable performance with a distinctive formula trusted by industry experts.

## Description

Loctite 21448 Green 638 High Strength Retaining Compound, 50 mL Bottle

Review: Works like it should. Made for India market so the label looks odd. - Worked like it should
Review: Its the real deal! - Best price, and availability of 638 loctite i could find! Properly half filled green liquid just like its suppose to be. Smells like vinegar as should. The bottles come half full because, as long as there is air in the bottle, the liquid won't cure. This stuff has an expiration date, and my bottle is good for 2 years!

## Features

- Approvals: Canadian Food Inspection Agency (CFIA)
- Item Package Length: 5.99999999388"
- Item Package Width: 1.99999999796"
- Item Package Height: 1.099999998878"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000O01EV0 |
| Best Sellers Rank | #10,184 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Retaining Compounds |
| Brand | Loctite |
| Brand Name | Loctite |
| Color | Green |
| Compatible Material | Alloy Steel |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 700 Reviews |
| Full Cure Time | 5 minutes |
| Global Trade Identification Number | 00079340006393, 00079340214484 |
| Included Components | Item |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 2.88 ounces |
| Manufacturer | Loctite |
| Material | [Loctite 638 Compound] |
| Material Type | [Loctite 638 Compound] |
| Model | 21448 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Green |
| Part Number | 21448 |
| Special Feature | Green |
| Specific Uses For Product | Repair |
| UPC | 079340214484 079340006393 |
| Unit Count | 1.69 Fluid Ounces |
| Viscosity Level | Medium |
| Volume | 50 ml |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Loctite
- **Item Form:** Liquid
- **Material:** [Loctite 638 Compound]
- **Special Feature:** Green
- **Specific Uses For Product:** Repair

## Images

![21448 Green 638 High Strength Retaining Compound, 50 mL Bottle - 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

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

Worked like it should

### ⭐⭐⭐⭐⭐ Its the real deal!
*by R***D on September 4, 2026*

Best price, and availability of 638 loctite i could find! Properly half filled green liquid just like its suppose to be. Smells like vinegar as should. The bottles come half full because, as long as there is air in the bottle, the liquid won't cure. This stuff has an expiration date, and my bottle is good for 2 years!

### ⭐⭐⭐⭐⭐ Strong stuff
*by R***L on November 13, 2025*

Looks like the real deal. Although when you peel the sticker back it reads "For India Only". My 242 bottle had the same and it is working like it should. This 638 is strong stuff.

## 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 Germany*
*Store origin: DE*
*Last updated: 2026-09-20*