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

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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

🟢Distinctive green color

🧪High strength formula

R501

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Lock it down fast, lock it down strong!

RAPID 5 MINUTE CURE - Get back to work faster with industry-leading quick bonding.
PRECISION APPLICATION - 50 mL bottle with medium viscosity for controlled, mess-free use.
TRUSTED INDUSTRY LEADER - Loctite brand reliability with top #3 rank in retaining compounds.
UNMATCHED HOLDING POWER - High strength retaining compound engineered for alloy steel durability.
DISTINCTIVE GREEN FORMULA - Easily identify your compound on the job site for seamless workflow.

Loctite 21448 Green 638 is a high strength retaining compound designed for rapid 5-minute curing and superior bonding on alloy steel parts. Packaged in a convenient 50 mL bottle with medium viscosity, it ensures precise application and reliable repair performance. Trusted by professionals, it ranks #3 in retaining compounds and features a distinctive green color for easy identification.

Specifications

ASIN	B000O01EV0
Best Sellers Rank	#9,028 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 (680)
Full Cure Time	5 Minutes
Global Trade Identification Number	00079340006393, 00079340214484
Included Components	Item
Item Form	Liquid
Item Package Quantity	1
Item Weight	0.18 Pounds
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 Milliliters
Water Resistance Level	Not Water Resistant

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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.

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3 weeks ago

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R501

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

2 days ago

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Received my product in pristine condition. Great service overall.

1 month ago

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