Bostik Pliogrip 7770 Polyurethane Structural Adhesive - 35 - 40 Minute Working Time

Bostik Pliogrip™ 7770 Structural Polyurethane Adhesive for Large-Scale Bonding

Bostik Pliogrip 7770 is a two-part polyurethane adhesive with a long 35–40 minute working time, providing ample time for large assemblies and precise positioning. It develops handling strength in 1.5–2 hours and is well-suited for bonding large composite panels, structural plastics, and coated metals. This non-sag adhesive delivers excellent gap filling performance, ensuring reliable bonds even on vertical or uneven surfaces. Available in 220 ml cartridges, Pliogrip 7770 offers strong adhesion, durability, and versatile use in automotive, marine, and industrial applications.

Benefits of Using Bostik Pliogrip 7770 Polyurethane Adhesive

• Long Open Time: 35–40 minute working window allows precise positioning and bonding of large assemblies.
  
• Reliable Strength: Reaches handling strength in 1.5–2 hours, supporting complex builds and extended setups.
  
• Versatile Bonding: Strong adhesion to composites, engineered plastics, coated metals, wood, and more.
  
• Non-Sag Application: Maintains bead shape for vertical or overhead joints.
  
• Excellent Gap Filling: Ensures strong bonds even on irregular or uneven surfaces.

Specifications

• Model: Pliogrip 7770 (Made with 7400 & 7654)
  
• Chemistry: Two-Part Polyurethane
  
• Mix Ratio: 1:1
  
• Open Time: 35–40 Minutes
  
• Handling Time: 1.5–2 Hours
  
• Sanding Time: 2.5–3 Hours
  
• 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: 220 ml cartridge
  
• Colors: Green, Black, Tan
  
• Cartridge Shelf Life: 24 Months
  

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

Applications & Industries for Bostik Pliogrip 7770

• Automotive: Bonding large composite panels, hoods, and structural assemblies
  
• Marine: Assembly and repair of large FRP and carbon fiber components
  
• Industrial Manufacturing: Fabrication of enclosures, housings, and structural composites
  
• General Fabrication: Applications requiring extended open time for precise placement and adjustment