Permabond 735 Instant Adhesive-Black Magic Toughened & Flexible Slow-Set-Gap Filling

Product Name

Permabond 735 Instant Adhesive-Black Magic Toughened & Flexible Slow-Set-Gap Filling

Brief Description

Permabond 735 is a high-performance, toughened, and flexible black ethyl cyanoacrylate (instant adhesive) designed for demanding applications. It offers significantly improved impact and peel strength compared to conventional superglues. This slow-setting, gap-filling adhesive cures rapidly at room temperature without the need for mixing or heat, providing an extended alignment time for accurate component placement.

Popular Applications & Uses

• Bonding dissimilar materials, such as rubber to metal, where flexibility and toughness are required.
• Applications requiring excellent impact, peel, and shear resistance.
• General industrial and professional bonding where an extended alignment time is beneficial.
• Bonding components with dark surfaces due to its black color, providing a discreet bond line.
• Used in processes like paint baking and wave soldering, as it can withstand higher temperatures for brief periods.

Industries that Commonly Use It

• General Manufacturing: For a wide range of industrial and professional bonding tasks.
• Metal Fabrication: Bonds steel, aluminum, and galvanized steel effectively.
• Plastic Fabrication: Suitable for various plastics including ABS, PVC, and PC.
• Automotive Service/Repair & Transportation/Specialty Vehicle: For durable and flexible bonds in vehicle components.
• Aerospace/Defense: Where high-performance and reliable adhesive solutions are critical.
• LED/Electronics: Due to its ability to withstand processes like wave soldering.
• Construction/Building Services: For various bonding and sealing applications.
• Medical Device/Prosthetics: For precision bonding requiring strength and flexibility.
• Distributers & Resellers: As a product sold through industrial suppliers.

Special and Unique Features

• Toughened and Flexible: Provides enhanced resistance to shock, vibration, and flexing, outperforming standard cyanoacrylates.
• Extended Alignment Time: A slightly longer fixture time (up to 50 seconds on steel/aluminum) allows for more accurate component alignment.
• Black Color: Ideal for bonding dark-colored components, ensuring a discreet bond line.
• Ease of Use: Requires no mixing or heat cure, making it user-friendly.
• 100% Reactive, No Solvents: Ensures a strong, consistent bond without solvent evaporation.
• Stable Viscosity: Maintains consistent performance over its shelf life.

Key Properties

• Chemical Composition: Ethyl cyanoacrylate.
• Appearance: Black liquid.
• Viscosity @ 25°C: 100-200 mPa.s (cP).
• Maximum Gap Fill: 0.15mm (0.006 inches).
• Fixture/Handling Time: Varies by substrate (e.g., 30-50 seconds on steel, 10-15 seconds on Buna N Rubber).
• Full Strength: Achieved in 24 hours.
• Temperature Range: -55°C to 120°C (-65°F to 250°F).
• Specific Gravity: 1.1.
• Hardness: 85 Shore D.

Surface Compatibility

Permabond 735 adheres to a wide variety of materials, including:

• Metals: Steel, aluminum, galvanized steel.
• Plastics: ABS, PVC, PC, and other general plastics.
• Elastomers/Rubbers: Buna N Rubber and other types of rubber.
• Other Materials: Wood, leather, paper, cork.

For difficult-to-bond or porous surfaces, Permabond CSA Activator can improve adhesion. For polyolefins like PTFE, polyethylene, or polypropylene, Permabond POP Primer is recommended.

Known backups / known substitutes

• Permabond 731: A clear, toughened cyanoacrylate with similar impact and peel resistance.
• Permabond 737: Another black, toughened cyanoacrylate offering good impact resistance, peel strength, and gap-filling capabilities.
• Other Permabond cyanoacrylates like Permabond 910 (methyl cyanoacrylate for metal bonding) or Permabond 102 (fast-setting) may be considered depending on specific application needs, though they may not offer the same toughened and flexible properties.

Comparison Note

Permabond 735 significantly outperforms conventional cyanoacrylates in terms of impact and peel strength, making it suitable for more demanding applications where standard superglues would fail. Its slower set time provides a crucial advantage by allowing for extended alignment and precise positioning of components, which is not typically possible with faster-curing instant adhesives.