Loctite 416 Instant Adhesive 20g

Loctite 416 Super Bonder Instant Adhesive 20g is a high-viscosity, ultra-clear ethyl-based instant adhesive engineered for maximum efficacy in general-purpose bonding. This industrial-grade adhesive permanently bonds components, preventing costly assembly failures caused by operational stress and vibration. Whether you are securing small joints or medium-size parts, this premium cyanoacrylate adhesive provides a robust, dependable seal on all common materials—including plastic, rubber, metal, and specific difficult substrates like polyolefins.

Why Choose Loctite 416 Super Bonder?

• Rapid Fixture Speed: Cures very quickly (within 20 to 40 seconds) when confined between two tight-fitting surfaces.
• Broad Material Versatility: Offers excellent, high-strength adhesion across a diverse range of substrates, including metals, rubbers, and plastics.
• High Viscosity Control: The 1500 mPa·s thick formula provides superior application control and minimizes run-off on vertical surfaces.
• Bonds Difficult Materials: When paired with Loctite SF 770 or Loctite SF 7239 primers, it effectively bonds low-surface-energy polyolefin plastics.
• Solvent-Free & Temperature Resilient: Maintains a dependable bond within a clean, solvent-free composition across a wide temperature range of -65°F to 180°F.

Technical Specifications

• Product Type: Cyanoacrylate (Ethyl-based Instant Adhesive)
• Strength: High (3,200 psi Shear Strength on Grit-Blasted Steel)
• Color: Ultra Clear
• Container Size: 20g
• Certifications: Tested to Military Specification Mil-A-46050C; Qualified to Commercial Item Description A-A-3097

Simple Application Instructions

1. Clean: For optimal results, clean all mating surfaces to ensure they are completely free from grease, oil, and dust.
2. Apply: Apply a minimal amount of the high-viscosity instant adhesive to one side of the joint. The formula performs best in thin bond gaps around 0.05 mm.
3. Assemble: Assemble and press the parts together firmly. Atmospheric humidity initiates the curing process; hold for 20 to 40 seconds until fixed, and allow 24 hours for full chemical and solvent resistance to develop. *Excess uncured adhesive can be dissolved with Loctite cleanup solvents, nitromethane, or acetone.*

Frequently Asked Questions (FAQ)

What is Loctite 416 used for?

Loctite 416 is a high-strength instant adhesive designed for general-purpose bonding of small to medium-size parts. It is specifically formulated to prevent assemblies from separating or failing due to mechanical stress or high-vibration environments.

Can Loctite 416 be disassembled?

Because Loctite 416 forms a permanent, high-strength bond, physical disassembly can be challenging. However, cured residues or bonded joints can be softened and dissolved using nitromethane, acetone, or dedicated Loctite cleanup solvents.

Does Loctite 416 work on plastic and rubber?

Yes. Loctite 416 offers robust performance across standard plastics, rubbers, and metals. For difficult-to-bond polyolefin surfaces, it achieves maximum adhesion when used in combination with a specialty primer like Loctite SF 770 or Loctite SF 7239.

Is Loctite 416 safe for oxygen systems?

No. Loctite 416 is not recommended for use in pure oxygen or oxygen-rich systems, and it should never be selected as a sealant for chlorine or other strong oxidizing materials.