Loctite 406 Instant Adhesive 20g

Loctite 406 Instant Adhesive (20g) is an ultra-low viscosity clear super glue engineered for maximum efficacy in rapid component bonding. This industrial-grade adhesive permanently bonds parts in seconds, preventing costly assembly delays or structural failures caused by weak joints. Whether you are securing automotive interior trims or executing precision electronic component assembly, this premium instant adhesive provides a robust, leak-proof seal on all plastics and rubbers—including difficult-to-bond materials.

Why Choose Loctite 406 Ultra-Low Viscosity Super Glue?

• Fixture Time in Seconds: Achieves rapid bonding for high-speed assembly and fast-paced manufacturing or repair operations.
• Difficult Substrate Compatibility: Specially formulated for exceptional adhesion on plastics, rubbers, and difficult elastomers like EPDM.
• Ultra-Low Viscosity (20 cP): Ideal for tight tolerance parts, tight-fitting assemblies, and capillary action in fine gaps.
• High Shear Strength: Delivers 3,200 psi on grit-blasted steel for heavy-duty, reliable holds.
• Wide Temperature Resistance: Maintains a clear, colorless, and invisible bond across temperatures from -65°F to 250°F (-54°C to 120°C).

Technical Specifications

• Product Type: Cyanoacrylate Instant Adhesive
• Strength: High Shear Strength (3,200 psi)
• Color: Ultra Clear / Colorless
• Container Size: 20g
• Certifications: Qualified to Commercial Item Description A-A-3097 (Regional approval)

Simple Application Instructions

1. Clean: For optimal results, clean all bond areas and surfaces with a Loctite cleaning solvent and allow to dry completely to ensure they are free from grease.
2. Apply: To improve bonding on low-energy plastics, a Loctite Primer (like Loctite 770 or 7239) may be applied first and allowed to dry. Apply several drops of the liquid adhesive to only one of the bond surfaces. Do not use a tissue or brush to spread it.
3. Assemble: Assemble the parts within a few seconds and locate them accurately, as the short fixture time leaves little room for adjustment. Hold fixed or clamped until the adhesive has fixtured. The formula cures via humidity activation.

Frequently Asked Questions (FAQ)

What is Loctite 406 used for?

Loctite 406 is a high-performance instant adhesive designed for the fast bonding of plastics and elastomeric materials. It is specifically formulated to prevent parts from shifting or failing due to mechanical stress, making it ideal for rubber sealing, gasket bonding, and O-ring assembly.

Can Loctite 406 be disassembled?

No, it creates a permanent bond. Because cyanoacrylates form a rigid, highly secure polymer matrix, full functional strength is developed rapidly. Bonds should be allowed to fully cure for 24 to 72 hours before being subjected to service loads.

Does Loctite 406 work on difficult plastics?

Yes. Loctite 406 offers robust performance across a wide variety of plastics and rubbers. When combined with Loctite 770 or Loctite 7239 primers, it becomes highly effective on difficult-to-bond, low-energy polyolefin surfaces like polyethylene and polypropylene.

Is Loctite 406 safe for oxygen-rich environments?

This product is not recommended for use in pure oxygen and/or oxygen-rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials. For comprehensive safe handling guidelines, please consult the Safety Data Sheet (SDS).