Bostik Pliogrip 7779 Polyurethane Structural Adhesive - 8 - 10 Minute Working Time

Bostik Pliogrip™ 7779 Two-Part Polyurethane Adhesive for Precise Bonding

Bostik Pliogrip 7779 is a two-part polyurethane adhesive designed for structural bonding with an 8–10 minute working time and handling strength in about 30 minutes. This working window provides ample time for positioning and adjustment, making it well-suited for larger composite assemblies and applications requiring precision. Supplied in 215 ml and 630 ml cartridges, Pliogrip 7779 delivers reliable adhesion, gap-filling performance, and durability for automotive, marine, and industrial applications.

Performance Highlights of Bostik Pliogrip 7779 Structural Adhesive

• Balanced Working Window: 8–10 minute open time with handling strength in about 30 minutes allows precise positioning of parts.
  
• Versatile Bonding: Adheres to composites, engineered plastics, coated metals, wood, and more.
  
• Non-Sag Formula: Maintains bead shape in vertical or overhead applications.
  
• Excellent Gap Filling: Fills irregular joints and surface variations to ensure strong structural bonds.
  
• Proven Durability: Reliable mechanical performance with long-term impact and fatigue resistance.
  

Specifications

• Model: Pliogrip 7779 (Made with 7400 & 7655)
  
• Chemistry: Two-Part Polyurethane
  
• Mix Ratio: 1:1
  
• Open Time: 8–10 Minutes
  
• Handling Time: 30 Minutes
  
• Sanding Time: 60 Minutes
  
• Tensile Strength: 4,200 psi (29 MPa)
  
• Elongation: 63%
  
• Water Absorption: <1.5%
  
• Shore Hardness, D: 69
  
• Shrinkage: <1.0%
  
• Cure: Ambient or heat accelerated cure – Max. 250°F (120°C)
  
• Optimum Bondline Thickness: 0.020–0.060 in (0.5–1.5 mm)
  
• Paint Bake: Max. 300°F (150°C)
  
• Compatible Substrates: Plastics, fiber-reinforced plastics (FRP), wood, coated or primed metals
  
• Available Sizes: 215 ml cartridge, 630 ml cartridge
  
• Colors: Green, Black, Tan
  
• Cartridge Shelf Life: 24 Months
  

Note: All data given was measured at 73°F (23°C).

• Automotive: Bonding large composite panels, structural plastics, and reinforced parts
  
• Marine: Assembly and repair of FRP and carbon fiber structures requiring precise alignment
  
• Industrial Composites: Manufacturing equipment housings, enclosures, and composite structures
  
• General Fabrication: Applications where an extended open time is needed for accurate part placement