SikaFast 3551 Long Open Time Methacrylate Structural Adhesive

Overview of the SikaFast 3551 Adhesive

SikaFast 3551 is a two-component structural acrylic adhesive utilizing methyl methacrylate (MMA) chemistry. It has a long open time of 45 minutes with a 1:1 mix ratio and is supplied in a 400 mL (13.5 fl. oz) cartridge. 

The SikaFast 3551 MMA is ideal for larger bonding applications that require extended handling and precise positioning. Its thixotropic, non-sagging formulation also makes it great for application on vertical surfaces. SikaFast 3551 provides strong adhesion on various substrates including metals, top coats, and plastics, with minimal surface preparation. This adhesive is perfect for high-strength bonding applications where flexibility and long working time are imperative.

Key Features of SikaFast 3551 Glue

• Mix Ratio 1:1: Ensures consistent and reliable application
  
• 400 mL Cartridge: Ideal for high-strength bonding applications requiring extra handling time
• Long Working Time: Provides extended open time for larger applications or complex assemblies
  
• Impact and Peel Resistance: Provides excellent resistance to impact and peel forces
• Excellent Adhesion: Bonds to top coats, metals, and plastics with minimal surface preparation
• Non-Sagging Formula: Thixotropic paste ensures precise application, even on vertical surfaces

Specifications

• Series: SikaFast 3551
  
• Type: Acrylic Structural Adhesive
  
• Chemistry: Methyl Methacrylate
  
• Application: Bonding
  
• Substrates: A Variety of Substrates, Including Top Coats, Metals, and Plastics with No or Limited Surface Preparation
  
• Color (Mixed): Light Yellow
  
• Cure Mechanism: Radical Polymerization
  
• Cartridge Size: 400 mL (13.5 fl. oz)
  
• Density (Mixed): 8.1 lb/gal (0.97 kg/l)
  
• Mix Ratio: 1:1
  
• Consistency: Thixotropic Paste
  
• Application Temperature: 50°F to 95°F (10°C to 35°C)
  
• Open Time: 45 Minutes
  
• Peak Exotherm Time / Temperature: 200 Minutes / 104°F (40°C)
  
• Shore D Hardness: 70
  
• Tensile Strength: 2,300 psi (16 MPa)
  
• E-Modulus: 110 ksi (780 MPa)
  
• Tensile Lap-Shear Strength: 3,350 psi (23 MPa)
  
• Service Temperature: -40°F to 176°F (-40°C to 80°C)
  
• Shelf Life: 9 Months
  
• Storage Temperature: Below 77°F (25°C) - Protect from Direct Sun Light
  

Uses

Providing excellent adhesion to a variety of substrates, SikaFast 3551 has a diverse number of potential applications. The SikaFast 3551structural adhesive is ideal for bonding applications that require a long open time. Its non-sagging formula ensures precise application on vertical surfaces, making it perfect for larger assemblies requiring extra handling and positioning time.