SikaFast 3131 S Flexible Methacrylate Adhesive Drum

SikaFast 3131 S Pails

This SikaFast 3131 S Part A component comes in a pail for bulk needs. It is part of a two-component, fast-curing methyl methacrylate (MMA) adhesive. Available in both 45-gallon drums and 4.5-gallon pails, this adhesive is designed for high-strength bonding applications with a 10:1 mix ratio when combined with SikaFast 3081 N Activator (Part B).

With an open time of 7 minutes, SikaFast 3131 S Part A provides excellent adhesion to various substrates, including metals and fiber-reinforced polymers. Its rapid strength development and high flexibility make it ideal for demanding bonding applications where durability and impact resistance are essential.

SikaFast 3131 S Part A Pails Are Compatible With

• SikaFast 3081 N Activator (Part B) 4.5 Gallon Pail

Features and Benefits

• Part A Component: To be mixed with SikaFast 3081 N Activator (Part B)
  
• Available in Bulk: Supplied in 45-gallon drums or 4.5-gallon pails, ideal for large-scale applications
• Fast Curing: Strength develops within minutes for quick fixturing
  
• Excellent Adhesion: Bonds effectively to metals and polymers with limited surface preparation
  
• High Flexibility: Superior flexibility for enhanced durability and impact resistance

Specifications

• Series: SikaFast 3131 S
  
• Type: Acrylic Structural Adhesive - Part A
  
• Chemistry: Methyl Methacrylate
  
• Application: Bonding (Using SikaFast 3081 N Activator)
  
• Substrates: A Variety of Substrates, Including Aluminum, Stainless or Galvanized Steel, and Fiber Reinforced Polymers
  
• Color (Mixed): Straw
  
• Cure Mechanism: Radical Polymerization
  
• Package Size: 45 Gallon Drum or 4.5 Gallon Pail
  
• Density (Mixed): 8.3 lb/gal (0.99 kg/l)
  
• Mix Ratio: 10:1 (With SikaFast 3081 N Activator)
  
• Consistency: Thixotropic Paste
  
• Application Temperature: 50°F to 95°F (10°C to 35°C)
  
• Open Time: 7 Minutes
  
• Peak Exotherm Time / Temperature: 17 Minutes / 194°F (90°C)
  
• Shore D Hardness: 65
  
• Tensile Strength: 1,300 psi (9 MPa)
  
• Elongation at Break: 50%
  
• E-Modulus: 14,500 psi (100 MPa)
  
• Tensile Lap-Shear Strength: 1,500 psi (10.5 MPa)
  
• Service Temperature: -22°F to 176°F (-30°C to 80°C)
  
• Shelf Life: 9 Months
  
• Storage Temperature: Below 72°F (22°C) - Protect from Direct Sun Light
  

Applications

SikaFast 3131 S Part A pails are designed for high-strength and high-volume bonding applications. This adhesive replaces mechanical fasteners and is ideal for applications requiring quick fixturing and high durability. It is commonly used in the automotive, industrial, and construction settings.

Other Sizes Available

• SikaFast 3131 S 490 mL Cartridges