LOCTITE 425 Assure Instant Adhesive is a low-strength, fast-curing cyanoacrylate designed specifically for locking and tamperproofing plastic and plated metal fasteners.

​Product Overview & Key Features

• ​Substrate Compatibility: Formulated specifically to bond and lock plastic fasteners (nylon, polyester, PC, ABS) and plated metal fasteners without causing stress cracking or plastic degradation.
• ​Pre- or Post-Assembly Application: Liquid formulation wicks into already-assembled screw heads or threads, allowing post-assembly application.
• ​Tamperproofing & Locking: Commonly applied to screw heads, potentiometers, and adjustment set-screws as a visual inspection and tamper-evident locking agent.
• ​Removable: Low-strength formulation ensures components can be disassembled using standard hand tools without damaging delicate plastic threads.