Product Name
Permabond 798 Cyanoacrylate high viscosity, fast curing, surface insensitive adhesive
Brief Description
Permabond 798 is a one-component, high-viscosity, fast-curing, surface-insensitive ethyl cyanoacrylate adhesive. It is designed for rapid bonding of a wide variety of materials, including porous substrates and those with larger gaps, and is ideal for high-speed production lines.
Popular Applications & Uses
- Bonding metals, ceramics, plastics, elastomers, wood, fabric, and leather- High-speed production lines- Model assembly- Jewelry assembly- Medical device and electronic component assembly- Automotive and aerospace manufacturing- O-ring manufacture and repair- Filling voids and cracks in woodworking- Securing controls or plates in machinery construction
Industries that Commonly Use It
- Aerospace/Defense- Artist, Artisan- Automotive Service/Repair- Cabinet & Woodworking- Electrical Services or Products- Fabrication- Furniture- General Manufacturing- Government & Military- LED/Electronics- Medical Device/ Prosthetics- Metal Fabrication- Plastic Fabrication- Tarp, Fabric, Awning Manufacturing- Transportation/ Specialty Vehicle
Special and Unique Features
- Surface insensitive, allowing rapid cure on most surfaces- High viscosity, ideal for large gaps up to 0.43 mm (0.017 in) and porous substrates, preventing excessive wicking- Fast curing, achieving handling strength in approximately 6 seconds on various substrates- Minimizes fogging and frosting- 100% reactive with no solvents, making it eco-friendly with no VOCs- Approved to MIL-A-46050C Type II Class 3, ensuring compliance for military, aerospace, and industrial applications- Single-part adhesive, requiring no mixing or heat cure, simplifying application
Key Properties
- Chemical composition: Ethyl cyanoacrylate- Appearance: Colourless (Clear)- Viscosity @ 25°C: 2000 mPa.s (cP) (High viscosity)- Specific gravity: 1.1- Maximum gap fill: 0.43 mm (0.017 in)- Fixture / Handling Time: 6 seconds (Steel, Buna N Rubber, Phenolic)- Full Cure Time: 24 hours- Shear Strength (ASTM D-1002): Steel 20-22 N/mm² (2900-3200 psi)- Impact Strength (ASTM D-950): 3-5 kJ/m² (1.4-2.4 ft-lb/in²)- Temperature Range: -55°C to 82°C (-65°F to 180°F)- Hardness: 85 Shore D
Surface Compatibility
- Metals- Ceramics- Plastics- Elastomers (Rubbers like Buna N)- Wood- Fabric- Leather- Other porous substrates- For difficult or porous surfaces, Permabond C Surface Activator (CSA-NF) or Permabond QFS 16 is recommended- For polypropylene, polyethylene, PTFE, or silicone, priming with Permabond Polyolefin Primer is recommended
Known backups / known substitutes
- Loctite® 380- 3M™ Scotch-Weld™ CA100- Permatex® Black Super Glue- ASI 1500, ASI 2000, ASI FS1000 (from Adhesive Systems Inc.)- Procure PC16- Other Permabond cyanoacrylates like Permabond 108, 795, 170, 947 may be considered depending on specific requirements
Comparison Note
Permabond 798 stands out as a high-viscosity cyanoacrylate adhesive specifically formulated to address the challenges of bonding porous substrates and filling larger gaps, where lower viscosity CAs might wick away or fail to bridge the gap effectively. Its rapid cure speed and surface insensitivity make it highly efficient for high-speed industrial production lines, offering a robust and reliable bond on a diverse range of materials.
