ASURE® PA6831 Bookbinding PUR Hot Melt Adhesive

ASURE® PA6831 PUR Bookbinding Adhesive Overview

ASURE® PA6831 is a polyurethane-based hot melt adhesive formulated for perfect binding applications. Designed for excellent lay-flat performance, it provides strong initial hold, superior flexibility, and reliable adhesion to UV-coated, clay-coated, and film-laminated stock. With high tack and a longer open time, it delivers consistent results even on hard-to-bond materials. Ideal for high-speed production lines running from 2,000 to 12,000 books per hour, PA6831 performs well in both slot nozzle and open pot systems.

PA6831 Features and Benefits

• Strong Initial Hold: Provides immediate grip for secure spine adhesion
  
• Low Melt Point: Allows for easy startup and smooth flow in PUR systems
  
• Perfect Binding Design: Tailored for high-speed bookbinding lines
  
• Excellent Adhesion: Bonds reliably to UV-cured, film-laminated, and clay-coated stocks
  
• Flexible and Lay-Flat Performance: Delivers durable, long-lasting results with exceptional page pull strength
  
• High Tack and Long Open Time: Enhances performance on difficult-to-bond materials
  
• System Compatibility: Works with slot nozzle and open pot applicators
  
• Zero VOC Formulation: Provides clean operation and low environmental impact

Specifications

• Series: PA6831
  
• Product Type: Bookbinding
  
• Applications: Perfect Binding
  
• Substrates: UV-Coated Papers, Films, Clay-Coated Stock
  
• Chemistry: Polyurethane (PUR)
  
• Color: White (Solid @ Room Temperature), Clear (Liquid @ 250°F)
  
• Viscosity: 4,500 cps ± 500 @ Application Temperature
  
• Application Temperature: 235 - 275°F
  
• Open Time: 40 Seconds
  
• Cure Time: 8 - 10 Hours
  
• Specific Weight: 9.3 lbs/gal
  
• Elongation: 950%
  
• Tensile Strength: 4,000 psi
  
• Packaging: 55 Gallon Drums
  
• VOC Content: 0 g/L
  
• Shelf Life: 1 Year