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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🔗 Lock it down with Loctite – strength that won’t let go!

PRECISION APPLICATION - Compact 50ml size with easy-to-use packaging for controlled dispensing.
WATERPROOF DURABILITY - Seals and bonds with confidence, even in wet or humid environments.
UNMATCHED HOLDING POWER - Engineered for maximum strength to secure your toughest assemblies.
TRUSTED BRAND RELIABILITY - From Loctite, a leader in industrial adhesives trusted by professionals worldwide.
VERSATILE MATERIAL COMPATIBILITY - Formulated with acrylic and polyurethane for reliable adhesion on diverse surfaces.

Loctite 442-21448 is a 50ml high-strength retaining compound featuring a waterproof acrylic-polyurethane formula. Designed for professional-grade bonding, it offers durable, reliable adhesion in demanding conditions, making it ideal for securing mechanical parts and assemblies with confidence.

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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.

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Great experience from order to delivery. Highly recommended!

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Manufacturer	Loctite
Part number	21448
Item Weight	81.6 g
Product Dimensions	2.54 x 2.54 x 30.48 cm; 81.65 g
Item model number	21448
Colour	Green
Material	Acrylic, Polyurethane
Item Package Quantity	1
Special Features	Waterproof
Batteries included?	No
Batteries Required?	No

Loctite 442-21448 50Ml Retaining Compound638 Maximum Strength

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