Loctite LOCTITE-422 (20-g-Tube)

LOCTITE 422™ Instant Adhesive

Overview

LOCTITE 422™ is a general-purpose ethyl cyanoacrylate instant adhesive designed for rapid bonding of plastics, rubbers, and metals. It cures quickly in the presence of atmospheric moisture and delivers high-strength bonds suitable for precision assembly and repair applications. The product is supplied as a single-component system requiring no mixing.

Key Technical Specs

• Technology: Cyanoacrylate (ethyl-based)
• Appearance: Clear liquid (uncured)
• Components: One-part system (no mixing required)
• Viscosity: 1,700-3,000 mPa�s (cone & plate)
• Specific Gravity: 1.05 at 25°C
• Vapour Pressure: <1 hPa
• Cure Mechanism: Ambient moisture

Approvals & Specifications

• Qualified to MIL-A-46050C (regional approval)
• Qualified to Commercial Item Description A-A-3097

Typical Applications

• Rapid bonding of plastics, rubbers, and metals
• Precision assembly work
• Small gap structural bonding
• Repair and maintenance applications
• General industrial adhesive use

Key Features & Benefits

• Very fast fixture times on many substrates
• No mixing required - single component system
• High bond strength on a wide range of materials
• Cures at room temperature using ambient humidity
• Suitable for tight-fit and precision bonding

Typical Fixture Times

• Mild steel (degreased): <5 seconds
• Neoprene rubber: <5 seconds
• Nitrile rubber: 10-30 seconds
• PVC: 20-50 seconds
• ABS: 15-40 seconds
• Polycarbonate: 30-70 seconds
• Phenolic: 10-40 seconds

Cure Behaviour Notes

• Cure speed depends on substrate, humidity, and bond gap
• Thin bond lines increase cure speed
• Higher humidity accelerates curing
• Full chemical/solvent resistance develops after ~24 hours
• Activators may be used for large gaps but can reduce ultimate bond strength

Compatibility & Safety Notes

• Use in well-ventilated areas
• Avoid skin and eye contact (rapid skin bonding possible)
• Refer to Safety Data Sheet before use
• Test activator use where applicable due to strength variation

Why This Product is Used

• Fast curing adhesive for time-critical assembly
• Reliable bonding across multiple material types
• Minimal preparation required for many substrates
• Widely used in industrial and maintenance environments

Manufacturer / Product Codes

• Product Name: LOCTITE 422™
• Technology: Cyanoacrylate adhesive
• Type: Instant structural adhesive
• Supplier: Henkel LOCTITE