Loctite 404 Quick Set Instant Adhesive 9.3g

Loctite 404 Quick Set Instant Adhesive 9.3g is a fast fixturing, low viscosity, neutral/straw ethyl cyanoacrylate adhesive engineered for maximum efficacy in plastic and rubber bonding. This industrial-grade adhesive permanently bonds components, preventing costly structural failures or operational downtime caused by weak joints or slow assembly processes. Whether you are securing intricate plastic housings or elastomeric O-rings, this premium cyanoacrylate provides a robust, leak-proof seal on all compatible substrates—including difficult-to-bond plastics and rubbers.

Why Choose Loctite 404 Quick Set Instant Adhesive?

• Ultra-Fast Fixturing: Designed for applications where very fast fixturing is required to maximize production efficiency.
• Optimized for Elastomeres: Specially formulated for high-performance bonding of plastics and elastomeric materials.
• Moisture Cure Mechanism: Initiates curing via atmospheric moisture under normal environmental conditions.
• Low Viscosity Precision: Maintains a liquid viscosity of 70 - 110 mPa.s, making it ideal for thin, tight-fitting bond gaps.
• High Shear Strength: Delivers a heavy-duty shear strength of 3500 psi on grit-blasted steel.

Technical Specifications

• Product Type: Ethyl Cyanoacrylate Adhesive
• Strength: 3500 psi (Shear Strength, Grit Blasted Steel)
• Color: Neutral, Straw
• Container Size: 9.3g
• Certifications: Qualified to Commercial Item Description A-A-3097 (Regional Approval)
• Viscosity: 70 - 110 mPa.s (cP) Brookfield
• Temperature Range: -65°F to 180°F

Simple Application Instructions

1. Clean: For optimal performance, bond surfaces should be clean and entirely free from grease or contaminants.
2. Apply: Apply a minimal amount of the liquid adhesive to the target substrate. This product performs best in thin bond gaps (0.05 mm). Thin bond lines result in the highest cure speeds.
3. Assemble: Assemble and firmly press the parts together immediately. The atmospheric and surface moisture will initiate the curing process. Leave components undisturbed until the fixture time is achieved.

Frequently Asked Questions (FAQ)

What is Loctite 404 used for?

Loctite 404 is a low viscosity, rapid-fixturing cyanoacrylate adhesive primarily designed for the permanent bonding of plastics and elastomeric materials. It is specifically formulated to prevent component separation and joint failure due to mechanical stress or quick-assembly production demands.

Can excess Loctite 404 adhesive be removed or cleaned up?

Yes. Excess uncured or cured adhesive can be dissolved and cleaned away using specialized Loctite cleanup solvents, nitromethane, or acetone.

Does Loctite 404 work on all materials?

Loctite 404 offers robust performance across a wide variety of plastics and rubbers. While it delivers excellent shear strength on grit-blasted steel (3500 psi), it is not recommended for use in pure oxygen, oxygen-rich environments, or as a sealant for chlorine and other strong oxidizing materials.

What are the storage requirements for Loctite 404?

Store the product in its unopened container in a cool, dry location. The optimal storage temperature is between 8°C and 21°C. Storing the material below 8°C or above 28°C can adversely affect its chemical and physical properties.