Whats the operating temp of loctite 638 tm.....we have hair crack or say void in the mig-welded metal part....resulting into water sippage...

Upto 180 deg Celsius after full cure. But shouldn't be used to fill hair crack. Use Loctite 290 instead for hair cracks.

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Loctite 638 Retaining Compound 50ml | High-Strength Retainer | High Temperature & Oil Resistant | Fast Fixture Time | High Viscosity | Bonds Shafts, Gears & Pulleys

Product ID: 227407182

Details

Brand
Loctite
Item Form
Liquid
Material
Methacrylate
Special Feature
durable
Specific Uses For Product
durable

🔥High-temp resistant

⏱️Fast fixture time

🛠️High viscosity for strong bonds

€ 10.08

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Description

🔧 Lock it down with Loctite 638 — where strength meets speed!

RAPID FIXATION POWER - Secures shafts, gears, and pulleys in record time—no downtime, just uptime.
OIL WATER RESISTANT - Maintains strength and durability even in oily or wet industrial environments.
UNMATCHED HEAT ENDURANCE - Withstands extreme temperatures to keep your assemblies intact under pressure.
TRUSTED INDUSTRIAL STANDARD - Ranked top 200 in universal adhesives, backed by Henkel’s proven quality.
PREMIUM HIGH VISCOSITY FORMULA - Ensures a robust, gap-filling bond that lasts through heavy use and vibration.

Loctite 638 Retaining Compound is a high-strength, high-viscosity adhesive designed for bonding metal shafts, gears, and pulleys. It offers fast fixture times, exceptional resistance to high temperatures, oil, and water, ensuring durable, long-lasting industrial-grade retention. Trusted globally and manufactured by Henkel, this 50ml bottle delivers professional-grade performance for demanding mechanical assemblies.

Specifications

Asin	B0074NAX8A
Best Sellers Rank	#6,650 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #158 in Universal Adhesives
Brand Name	Loctite
Colour	Red
Compatible Material	Metal
Container Type	Bottle
Country Of Publication	India
Customer Reviews	4.2 4.2 out of 5 stars (83) 4.2 out of 5 stars
Importer Contact Information	Henkel Adhesives Technologies India Private Limited Plot No. D4/1, Kurkumbh Daundh MIDC Pune - 413 802 Maharashtra, India
Included Components	1
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Adhesive
Item Weight	80 Grams
Manufacturer	Henkel Adhesives Technologies India Private Limited Plot No. D4/1, Kurkumbh Daundh MIDC Pune - 413 802 Maharashtra, India, Loctite
Manufacturer Contact Information	Henkel Adhesives Technologies India Private Limited Plot No. D4/1, Kurkumbh Daundh MIDC Pune - 413 802 Maharashtra, India
Manufacturer Part Number	LOCTITE 638-50ml
Material Type	Methacrylate Ester
Model	LOCTITE 638-50ml
Number Of Pieces	1
Other Special Features Of The Product	durable
Packer Contact Information	Henkel Adhesives Technologies India Private Limited Plot No. D4/1, Kurkumbh Daundh MIDC Pune - 413 802 Maharashtra, India
Specific Uses For Product	durable
Unit Count	50 Milliliters
Upc	079340214484
Viscosity Level	High
Volume	50 Millilitres
Water Resistance Level	Waterproof

Reviews

User

Good

Excellent product

23.04.2026

User

Loctite 638

Good

2.02.2026

User

Excellent product

This does it work perfectly. I wanted it to seal the bottom bracket of my carbon frame cycle and it worked..

2.02.2025

User

Loctile 638

It's a excellent bearing retainer

28.12.2020

User

Good Product

31.07.2022

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€ 10.08

Duties & taxes included

In stock

Sold byAmazon IrelandDelivered 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 Ireland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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