Loctite 409 Instant Adhesive Gel 20g

Loctite 409 Instant Adhesive Gel 20g is a general purpose, ultra-clear ethyl-based instant gel adhesive engineered for maximum efficacy in high-precision bonding. This industrial-grade adhesive permanently bonds components, preventing costly structural failures caused by high-stress operational demands. Whether you are securing vertical surfaces or intricate assemblies, this premium cyanoacrylate adhesive provides a robust, impact-resistant seal on all key substrates—including plastics, rubbers, and metals.

Why Choose Loctite 409 Instant Adhesive Gel?

• Non-Drip Gel Formula: The gel consistency prevents adhesive flow and running, making it ideal for vertical or overhead surfaces.
• Broad Substrate Compatibility: Exceptional performance on metals, rubbers, and plastics.
• Polyolefin Optimization: Perfectly suited for difficult-to-bond plastics and polyolefins when paired with Primer LOCTITE SF 770 or LOCTITE SF 7239.
• Rapid Fixturing: Achieves a reliable fixture time in just 20 to 60 seconds, minimizing downtime.
• Solvent-Free Composition: A 100% reactive, solvent-free formulation safe for a wide range of industrial environments.

Technical Specifications

• Product Type: Ethyl Cyanoacrylate Gel Adhesive
• Strength: High (3,200 psi Shear Strength on Grit-Blasted Steel)
• Color: Ultra Clear
• Container Size: 20g
• Viscosity: 27,500 mPa·s (cP) Brookfield
• Temperature Range: -65°F to 180°F (-54°C to 82°C)

Simple Application Instructions

1. Clean: For optimal results, clean all bond surfaces with a Loctite cleaning solvent to ensure they are clean and free from grease, then let dry.
2. Apply: Apply the gel formula to your mating surfaces. This product performs best in thin bond gaps (0.05 mm).
3. Assemble: Assemble and hold the parts together firmly. Atmospheric moisture initiates the curing process, creating a fixture within 20–60 seconds. Full functional strength and chemical resistance develop over 24 hours.

Frequently Asked Questions (FAQ)

What is Loctite 409 Instant Adhesive Gel used for?

Loctite 409 is a general-purpose cyanoacrylate gel designed for heavy-duty bonding applications. It is specifically formulated to prevent component separation and loosening due to mechanical stress, making it excellent for plastics, rubbers, and metals.

How can excess Loctite 409 be removed or disassembled?

Uncured or excess adhesive can be dissolved and wiped away using Loctite cleanup solvents, nitromethane, or acetone.

Does Loctite 409 work on hard-to-bond plastics?

Yes. While it adheres naturally to standard plastics, it can achieve strong bonds on difficult polyolefins when used in combination with Primer LOCTITE SF 770 or LOCTITE SF 7239.

Is Loctite 409 safe for oxygen or chemical piping?

No. This product is not recommended for use in pure oxygen and/or oxygen-rich systems, and it should not be selected as a sealant for chlorine or other strong oxidizing materials.