How much should a new bottle weigh? Mine feels kind of empty.

The bottle should be half empty. The air is required to prevent it from hardening in the bottle.

Would this work on O.D. Rubber seal surface to metal housing? (or only metal to metal?

It's only designed for metal to metal

Does well does "638" provide sealing properties? Thank you

Real non counterfeit loctite has a QR verification code on the bottle I returned mine

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

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

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

Product ID: 17520483

Details

Brand
Loctite
Item Form
Liquid
Material
[Loctite 638
Special Feature
Green
Specific Uses For Product
Repair

🕒5 min full cure time

🧪Medium viscosity for precision

🛠️High strength alloy steel bonding

€ 33.90

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Description

🛠️ Lock it down fast, stay strong forever!

RAPID 5 MINUTE CURE - Get back to work faster with industry-leading quick bonding.
COMPACT 50 M L BOTTLE - Perfect size for professional use—portable and ready when you are.
HIGH STRENGTH RETENTION - Engineered for alloy steel to ensure durable, long-lasting bonds.
TRUSTED INDUSTRY LEADER - Loctite’s #3 ranked retaining compound with 4.7-star reliability.
PRECISION MEDIUM VISCOSITY - Apply smoothly without mess or waste for flawless repairs.

Loctite 21448 Green 638 is a high-strength retaining compound designed for alloy steel applications. It cures fully in just 5 minutes, offering medium viscosity for precise application. Packaged in a convenient 50 mL bottle, this trusted formula ranks #3 in retaining compounds and boasts a 4.7-star rating from 688 users, making it the go-to choice for professionals seeking durable, reliable repairs.

Specifications

ASIN	B000O01EV0
Best Sellers Rank	#11,825 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Retaining Compounds
Brand Name	Loctite
Color	Green
Compatible Material	Alloy Steel
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (688)
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 Type	[Loctite 638 Compound]
Model	21448
Other Special Features of the Product	Green
Part Number	21448
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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 33.90

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews