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LOCTITE 422 High-Viscosity Instant Adhesive for Plastic, Rubber and Metal Bonding
Loctite 422: Ultra-Fast Curing Adhesive for Instant Bonding and Sealing
Product Overview: Loctite 422 is a high-performance instant adhesive designed to provide rapid bonding and sealing for a wide range of materials. Its ultra-fast curing capability and strong adhesion make it an ideal choice for quick repairs and efficient assembly in various applications. Loctite 422 ensures reliable and durable bonds, enhancing productivity and performance in both industrial and everyday tasks.
Key Performance Features:
- Ultra-Fast Curing: Loctite 422 offers extremely rapid curing, achieving initial bonding in seconds to streamline repair and assembly processes.
- High Bond Strength: Delivers strong adhesion to a variety of substrates, ensuring reliable and durable connections.
- Excellent Gap-Filling: Capable of filling small gaps and irregularities between surfaces, providing a secure bond even with slight misalignments.
- Versatile Use: Suitable for bonding metals, plastics, and rubber, making it a versatile adhesive for multiple materials and applications.
- Low Odor: Features low odor during application, improving user comfort and ease of use in various environments.
Applications:
- Rapid Repairs: Ideal for quick fixes on broken or damaged parts, providing a strong bond with minimal downtime.
- Efficient Assembly: Perfect for fast assembly tasks in industrial settings, enhancing productivity and reducing assembly time.
- Versatile Bonding: Suitable for a wide range of materials including metals, plastics, and rubber, making it a go-to adhesive for diverse projects.
- Consumer Applications: Useful for household repairs and crafting projects where fast and reliable bonding is required.
Technical Specifications:
- Color: Clear
- Viscosity: 60 – 100 mPa·s (cP)
- Temperature Range: -55°C to +80°C
- Fixture Time: 10-20 seconds on most surfaces
- Full Cure Time: 24 hours
- Shear Strength: 8 – 10 N/mm²
- Gap Fill: Up to 0.1 mm
Packaging: Loctite 422 is available in various sizes, including small tubes for convenient repairs and larger bottles for industrial use, to meet different application needs.
Conclusion: Loctite 422 is a high-performance instant adhesive that excels in providing rapid bonding and sealing solutions. With its ultra-fast curing, strong adhesion, and versatility, it is ideal for both industrial and everyday applications. Whether for quick repairs, efficient assembly, or versatile bonding, Loctite 422 ensures reliable and durable results.
LOCTITE 422 Instant Adhesive Benefits
LOCTITE 422 Instant Adhesive combines rapid curing with excellent adhesion to many common industrial substrates. Henkel lists a general fixture-time range of approximately 20 to 40 seconds, helping manufacturers shorten clamping time and move bonded parts through production more efficiently.
The high-viscosity formula is especially useful for vertical surfaces, controlled dots, short beads and components with slightly uneven mating areas. Its listed gap-filling capability is up to approximately 0.15 mm, although Henkel recommends thin bond lines near 0.05 mm for the fastest curing and best overall performance.
The one-part formulation eliminates resin-to-hardener measurement and mixing errors. Its ultra-clear appearance also supports visible joints where a dark or colored adhesive line would be undesirable. For difficult-to-bond, low-surface-energy plastics, LOCTITE SF 770 Primer can be applied before bonding to improve adhesion.
Applications for LOCTITE 422 Instant Adhesive
LOCTITE 422 Instant Adhesive can bond compatible plastics, elastomers and metallic components used in industrial manufacturing, maintenance, appliance assembly and general repair. Typical applications include plastic housings, rubber seals, gaskets, small metal fittings, electronic enclosures, molded components, automotive trim, appliance parts and precision assemblies.
Published substrate data include ABS, rigid PVC, polycarbonate, phenolic materials, neoprene rubber, nitrile rubber, steel, aluminum and zinc-dichromate surfaces. Because plastic formulations, coatings, release agents and surface treatments vary, manufacturers should validate adhesion using the actual production components before commercial use.
LOCTITE 422 Instant Adhesive Technical Properties
The uncured product is a transparent ethyl-cyanoacrylate liquid with a typical specific gravity of approximately 1.05 at 25°C. Henkel publishes a viscosity range of approximately 1,700 to 3,000 mPa·s using a cone-and-plate test method and approximately 2,000 to 2,500 mPa·s using the specified Brookfield method.
Fixture time depends on substrate type, temperature, humidity and bond gap. Representative results include approximately 10 to 30 seconds on aluminum, 20 to 50 seconds on degreased steel, 15 to 40 seconds on ABS and less than five seconds on neoprene or nitrile rubber under the stated laboratory conditions.
After 24 hours at 22°C, published lap-shear strength ranges include approximately 18 to 26 N/mm² on grit-blasted steel, 12 to 19 N/mm² on grit-blasted aluminum and 6 to 20 N/mm² on ABS or PVC. The cured adhesive also provides electrical insulation, including a dielectric breakdown strength of approximately 25 kV/mm.
How to Apply LOCTITE 422 Instant Adhesive
Clean and degrease all bonding surfaces and allow them to dry completely. Apply a small quantity of adhesive to one surface, assemble the parts immediately and hold them accurately in position until fixture strength develops. Excessive adhesive can slow curing and may create white blooming around the bonded area.
Apply LOCTITE SF 770 Primer to difficult-to-bond plastics and allow it to dry before dispensing the adhesive. When large gaps or environmental conditions make curing too slow, LOCTITE SF 7452 or SF 7455 Activator may be evaluated. Activators can reduce ultimate bond strength, so production testing is recommended.
Why Choose LOCTITE 422 Instant Adhesive?
LOCTITE 422 Instant Adhesive offers high-viscosity application control, rapid fixturing, clear appearance and dependable adhesion to plastics, rubber and metals. It is a practical solution for manufacturers and maintenance teams requiring fast bonding with less dripping and improved gap-filling capability.
Store unopened containers in a dry refrigerated location between 2°C and 8°C. Review the official Henkel LOCTITE 422 Technical Data Sheet and current Safety Data Sheet before qualification or production use. Explore our high-viscosity instant adhesives for additional plastic, rubber and metal bonding solutions.
