Loctite 290 – Medium/High Strength Wicking Grade Threadlocker

Loctite 290 is a capillary wicking-grade threadlocker designed to penetrate pre-assembled fasteners. Its thin, low-viscosity formula allows it to seep into tight gaps, making it ideal for locking and sealing already tightened bolts, screws, and fittings without the need for disassembly.

Key Features

• Wicking Grade Formula – Flows into pre-assembled threads

• Medium/High Strength – Strong locking with removable force using heat/tools

• Excellent Vibration Resistance – Prevents loosening in moving machinery

• Seals Threads – Protects against rust, corrosion, and leakage

• Low Viscosity – Penetrates tight gaps and microcracks easily

• Temperature Resistant – Works from –55°C to +150°C

• Ideal for Hard-to-Reach Fasteners

• Oil-Tolerant – Performs even on slightly oily surfaces

Best For

• Pre-assembled bolts & screws

• Instrumentation screws

• Small motors and pumps

• Electrical components

• Fasteners in engines, machinery & equipment

• Tight or inaccessible areas where disassembly isn’t possible