LOCTITE THREAD LOCKER (100% ORIGINAL) (290 ~ 50ML)

Reference: GLT-29050

Condition: New

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More info

Loctite 290 is a medium-to-high strength threadlocker known as the "wicking grade."¹ Unlike traditional threadlockers that must be applied before assembly, 290 is a very thin liquid designed to be applied after the parts are already screwed together.²

The 50ml bottle is the standard professional size for industrial maintenance and precision instrumentation.

Key Specifications & Features

Strength: Medium to High (considered permanent on small diameters).³
Color: Green (liquid).⁴
Wicking Action: Uses capillary action to "wick" into the threads of pre-assembled fasteners.⁵
Thread Size: Optimized for small fasteners up to M6 (⁶ $1/4"$ ).⁷
Temperature Range: ⁸ $-55$ °C to ⁹ $+150$ °C.¹⁰
Cure Time: Fixture in 20 minutes; full cure in 24 hours.¹¹
Bonus Use: Excellent for sealing porosities in welds, castings, and powdered metal parts.¹²

How to Verify "100% Original" (Authenticity Check)

Because Loctite 290 is used in critical pre-assembled electronics and instrumentation, ensuring authenticity is vital:

Micro-Engraved Bottle: Authentic Henkel bottles have textured "shoulders" with the Loctite logo embossed into the plastic.¹³ If the bottle is smooth, it is likely a counterfeit.
IDH Number: For a 50ml bottle of Loctite 290, the IDH (Item Number) is typically 232085.¹⁴ Verify this on the label.
The "Air" Gap: The 50ml bottle is intentionally designed to be half-full. The air in the bottle prevents the anaerobic liquid from curing inside the container.
QR Code: Modern packaging includes a unique QR code.¹⁵ Scan it with the Henkel authentication app to confirm the bottle's unique serial number.

Comparison: Wicking (290) vs. Standard (243/263)

Feature	Loctite 290 (Green)	Loctite 243/263
Application	After assembly (post-applied)	Before assembly
Viscosity	Very Low (like water)	Medium (like syrup)
Strength	Medium-High	Medium (243) / High (263)
Primary Use	Pre-set screws, instrumentation	General bolts/studs