3M™ Scotch-Weld™ Control Joint Sealants DP5106

A gray, two-component self-leveling polyurethane sealant packaged in a 1:1 mix ratio Duo-Pak. Designed for rapid-setting, it cures chemically, not by moisture—ideal for depth-rich joint applications

Key Features

• Rapid chemical cure: Self-levels and delivers a bubble-free finish 
  

• Short work-life: ~44 min mix time, tack-free surface in ~30 min 
  

• Fully cures quickly: Achieves full cure in ~24 h @ 72 °F (22 °C) 
  

• Low-temperature flexibility: Remains resilient in cold climates 
  

• Self-leveling: Allows clean horizontal joint applications 
  

• Low VOC: ~1 g/L meets environmental requirements

Applications

Specifically formulated to seal and stress-relieve horizontal concrete joints—ideal for large walkways, decks, patio slabs, bridge segments, pool decks and expansion joints that undergo seasonal movement 

• Mix Ratio  :   1:1 (Part A : Part B)
  

• Work-Life  :   ~44 min 
  

• Tack-Free Time  :   ~30 min
  

• Full Cure  :   ~24 h @ 72 °F (22 °C)
  

• Specific Gravity  :   Part A ~1.04; Part B ~1.06
  

• Flash Point   :   ~290 °F
  

• VOC Content   :    ~1 g/L
  

• Flammability   :    Rating 1 (low)
  

• Color   :    Gray (liquid and cured)
  

• Chemical hazards: Contains isocyanates—see SDS for health and safety guidelines 
  
• PPE recommended: Use gloves, protective eyewear, and ensure adequate ventilation during mixing and dispensing.
  
• Use spark-free tools due to the moderate flash point 
  
• Storage: Keep tightly sealed; dispose of residues per local hazardous-waste rules.