AT-3G is a hybrid, acrylic-based adhesive for anchoring threaded rod and rebar into cracked and uncracked concrete. Ideal for cold weather and wet concrete applications, AT-3G dispenses easily and offers a fast curing time for same-day bolt up. It can be specified for a wide range of in-service temperatures, and maintains its strong bond strength in extreme environments for ultimate design and jobsite flexibility. Tested and code compliant with the IBC and IRC, AT-3G hybrid adhesive is easy to install with the conventional blow-brush-blow hole cleaning method.

Key Features

• Excellent for use in cold weather conditions or applications where fast cure is required
  
• Recognized per ICC-ES AC308 for threaded rod and rebar anchoring, along with post-installed rebar development and splice length design provisions
  
• Conventional blow-brush-blow hole cleaning technique using a wire brush — no power brushing required
  
• Base material installation temperatures down to 0°F (-18°C)
  
• Use in grout-filled CMU construction
  
• Use of a vacuum in lieu of compressed air for hole cleaning
  
• Installation into oversized holes
  
• Installation in holes drilled with diamond core bits

Applications

• Threaded rod anchor and rebar dowel installations in cracked and uncracked concrete under a wide variety of environmental installation and use conditions
  
• Installation in downward, horizontal and upwardly inclined (including overhead) orientations
  
• Installation down to 0 F (-18 C)
  
• Qualified for use in structures assigned to Seismic Design Categories A through F
  

Installation

• Surfaces to receive adhesive must be clean per approved hole cleaning method.
  
• Base-material temperatures must be 23°F (-5°C) or above at the time of installation.
  
• To warm cold adhesive, store cartridges in a warm, uniformly heated area or storage container. Do not immerse cartridges in water or use microwave to facilitate warming.
  
• Mixed material in nozzle can harden in 2-3 minutes at temperatures of 70°F (21°C) and above.
  
• Use only Simpson Strong-Tie mixing nozzles in accordance with Simpson Strong-Tie instructions. Modification or improper use of mixing nozzle may impair AT-3G adhesive performance.
  
• For full instructions, see Adhesive Anchoring Installation Instructions.
  

Clean Up

• Uncured material — Wipe up with cotton cloths.
  
• Cured material — Chip or grind off surface.

Test Criteria

• AT-3G has been tested in accordance with ICC-ES 308, ACI 355.4 and applicable ASTM test methods.