Loctite 840073 Cyanoacrylate Adhesive 20g Black

Product Description

The LOCTITE 840073 is a black cyanoacrylate adhesive packaged in a 20 g bottle, part of the Loctite Prism 438 series. Cyanoacrylate formulas cure rapidly on contact with surface moisture, making them well-suited for bonding close-fitting parts where fast fixture time matters. This product is intended for professional and industrial use where a black-colored bond line is required for aesthetic or identification purposes. Installers in HVAC, electrical, plumbing, and general mechanical service environments rely on cyanoacrylate adhesives for securing sensors, gaskets, wire routing clips, and small structural components where a thin, rigid bond is needed.

This adhesive is suited for trade professionals working in residential and light commercial maintenance, repair, and assembly operations. It performs well on metals, plastics, rubber, and similar substrates commonly encountered in mechanical and electrical service work. The black color makes it appropriate for applications where a clear or translucent bond line is unacceptable. The 20 g bottle provides a controlled-dispensing format for small-volume repair and assembly tasks on the job or at the bench.

Key Features

• Cyanoacrylate chemistry delivers rapid cure on contact with surface moisture
• Black color suitable for applications requiring a non-visible or color-matched bond line
• 20 g bottle format supports controlled dispensing for small repair and assembly tasks
• Prism 438 series formulation designed for close-fitting or passive-fit joint assemblies
• Single-component formula requires no mixing prior to application

Compatibility

Designed as an OEM-style cyanoacrylate adhesive for use on metals, plastics, and rubber substrates in general mechanical, HVAC, plumbing, and electrical service applications.

Installation Notes

Cyanoacrylate adhesives are typically applied by maintenance technicians and assemblers following standard adhesive bonding procedures. Surfaces should be clean, dry, and free of oil or contaminants before application. Avoid skin and eye contact and work in a well-ventilated area, as cyanoacrylate vapors can cause irritation. Apply sparingly to one surface only, as excess adhesive can slow cure and reduce bond strength.