Simpson AT3G10 AT-3G 9.5-oz. High-Strength Hybrid Acrylic Anchoring Adhesive by Simpson Strong-Tie is a hybrid, acrylic-based adhesive engineered for anchoring threaded rod and rebar into cracked and uncracked concrete. Designed to perform where conditions are most demanding, AT-3G delivers fast cure times for same-day bolt up and handles base material installation temperatures down to 0 deg. Fahrenheit (-18 deg. Celsius), making it a dependable choice for cold weather pours, wet concrete environments, and a wide range of in-service temperature conditions. Recognized under ICC-ES AC308 and tested in accordance with ACI 355.4 and applicable ASTM test methods, this adhesive meets IBC and IRC code compliance requirements and supports applications from post-installed rebar development to seismic retrofit work. The included AMN19Q mixing nozzle and compatibility with the Simpson Strong-Tie CDT10S dispensing tool ensure straightforward, consistent installation on the jobsite.

Key Features

• Fast cure time for same-day bolt up - reduces project downtime and keeps schedules on track, even in cold weather or time-sensitive applications where other adhesives fall short.
• Installation temperatures down to 0 deg. Fahrenheit (-18 deg. Celsius) - allows work to continue in freezing conditions without compromising bond strength or requiring special accommodations.
• Conventional blow-brush-blow hole cleaning with a standard wire brush - no power brushing equipment required, simplifying prep work and reducing the tools needed on site.
• Vacuum-compatible hole cleaning - a vacuum may be used in lieu of compressed air, giving crews flexibility when compressed air equipment is unavailable or impractical.
• Recognized per ICC-ES AC308 for threaded rod and rebar anchoring - includes post-installed rebar development and splice length design provisions, supporting a broad range of structural anchoring specifications.
• Approved for use in grout-filled CMU construction and diamond core-drilled holes - expands the range of eligible substrates and drilling methods without requiring a separate adhesive product.
• Compatible with installation into oversized holes - provides design flexibility when field conditions or tolerances require larger openings than standard.
• Tested in accordance with ICC-ES AC308, ACI 355.4, and applicable ASTM test methods - confirms the adhesive meets rigorous independent performance and safety standards for structural anchoring applications.

Why This Product

• Built for harsh jobsite conditions - AT-3G is specifically formulated to perform in cold weather and wet concrete applications, with a cure rate fast enough for same-day bolt up, so crews are not left waiting regardless of temperature or moisture on site.
• Broad code recognition for structural anchoring - compliance with IBC, IRC, and recognition per ICC-ES AC308 means this hybrid acrylic adhesive can be specified with confidence for demanding applications including seismic new construction, seismic retrofit, and water or wastewater facility work.
• Simplified installation with no specialized cleaning equipment - the conventional blow-brush-blow method using a standard wire brush, combined with vacuum-compatible hole cleaning, keeps the prep process straightforward and reduces the equipment burden for crews working in the field.
• Versatile substrate and application coverage in a single cartridge - support for cracked and uncracked concrete, grouted CMU block, oversized holes, and diamond core-drilled holes means one adhesive handles a wide variety of anchoring scenarios without switching products mid-job.

Specifications

• MPN: AT3G10
• Brand: Simpson Strong-Tie
• Capacity: 9.5 oz. (16.9 cubic in.)
• Cartridge Type: 9.5-oz. coaxial cartridge
• Minimum Installation Temperature: 0 deg. Fahrenheit (-18 deg. Celsius)
• Compatible Dispensing Tool: Simpson Strong-Tie CDT10S
• Mixing Nozzle: AMN19Q
• Country of Origin: Germany

Approved Applications

• Concrete: Cracked and Uncracked
• Concrete Block: Grouted (Grout-Filled CMU Construction)
• Mass Timber / Cross-Laminated Timber
• Seismic (New Construction)
• Seismic Retrofit
• Water / Wastewater Facilities

What's Included

Each pack contains (1) AT3G10 High-Strength Hybrid Acrylic Adhesive, AMN19Q mixing nozzle.

Frequently Asked Questions

What is the lowest temperature at which AT-3G can be installed?

AT-3G supports base material installation temperatures down to 0 deg. Fahrenheit (-18 deg. Celsius), making it well suited for cold weather jobsite conditions where other adhesives may not perform adequately.

What hole cleaning method is required for AT-3G?

AT-3G uses the conventional blow-brush-blow hole cleaning technique with a wire brush - no power brushing is required. A vacuum may also be used in lieu of compressed air for hole cleaning.

What dispensing tool and mixing nozzle should be used with AT-3G?

AT-3G should be installed using the Simpson Strong-Tie CDT10S dispensing tool. Use only Simpson Strong-Tie mixing nozzles - the included AMN19Q mixing nozzle - in accordance with Simpson Strong-Tie instructions. Modification or improper use of the mixing nozzle may impair AT-3G adhesive performance.

What code standards is AT-3G recognized under?

AT-3G is recognized per ICC-ES AC308 for threaded rod and rebar anchoring, along with post-installed rebar development and splice length design provisions. It has also been tested in accordance with ICC-ES 308, ACI 355.4, and applicable ASTM test methods, and is code compliant with the IBC and IRC.

Downloads and Resources

• AT-3G (Direct Replacement for the discontinued AT-XP) 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.
• Safety Data Sheets for AT-3G
• AT-3G (Direct Replacement for the discontinued AT-XP) is a hybrid, acrylic-based adhesive for anchoring threaded rod and rebar into cracked and u

Related Products

• CDT10S - Manual Dispensing Tool for AT-3G Adhesive