Loctite 638 Thread Locker Adhesive 50mL – High Strength Retaining Compound. The Loctite 638 Thread Locker Adhesive 50mL is a high-performance retaining compound designed for bonding cylindrical fitting parts such as bearings, gears, pulleys, and shafts. It provides superior holding power and prevents loosening caused by vibration, shock, or heavy loads.

Key Features of Loctite 638 Thread Locker

Type: High-strength retaining compound
Size: 50 mL bottle
Color: Green
Viscosity: Medium to high
Temperature Range: Up to +180°C
Cure Type: Anaerobic (cures in the absence of air)

Why Choose Loctite 638?

Loctite 638 offers excellent gap-filling capability and is designed for close-fitting cylindrical assemblies. It provides strong bonding between metal parts, even on slightly oily surfaces. Once cured, it delivers maximum torque resistance and prevents corrosion between tightly fitted components.

Applications

Securing bearings and bushings into housings and shafts
Fixing gears and pulleys to prevent slippage
Locking threaded parts in motors, pumps, and heavy machinery
Industrial and automotive repair and maintenance

Benefits of Loctite 638 Thread Locker

Prevents loosening and leakage from vibration
High shear strength for demanding environments
Resistant to heat, oil, and common industrial fluids
Reduces the need for mechanical fasteners
Increases assembly reliability and lifespan

How to Use

Clean the mating surfaces thoroughly.
Apply 638 Thread Locker Adhesive to both parts.
Assemble immediately and allow curing at room temperature.
For faster results, use a Loctite activator if required.

Buy Loctite 638 in Bangladesh

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Loctite 638 Thread locker Adhesive 50mL