AT is a two-component, high-solids, 10:1 ratio, acrylic-based adhesive for use as a high strength, anchor-grouting material. Formulated for use in all types of weather, AT is designed to dispense easily and cure at temperatures down to 0°F. Resin and initiator are dispensed and mixed simultaneously through the mixing nozzle. AT meets the physical requirements of ASTM C881, Type I & IV, Grade 3, Classes A, B & C, except AT is a non-epoxy product formulated for fast cure time.
GALLERY: roll over images below to see larger image
- Threaded rod anchoring
- Rebar doweling
- Pick-proof sealant around doors, windows and fixtures
- ICC-ES ESR-1958* (URM)
- Florida FL 14832.1*
- NSF/ANSI Standard 61 (11in2/5000 gal) (PDF)
- Multiple DOT listings
*Applies to all AT products.
The Load Tables list values based upon results from the most recent testing and may not reflect those in current code reports. Where code jurisdictions apply, consult the current reports for applicable load values.
Surfaces to receive adhesive must be clean and free of frost. The base material temperature must be 0°F or above at the time of installation. For information on installations below 0°F contact Simpson Strong-Tie. Mixed material in nozzle can harden in 5–7 minutes. For installations in or through standing water, see Supplemental Topics - Adhesive Anchors for details.
When the concrete temperature is at or below freezing, ensure any holes drilled in advance are free of frost or ice.
INSTALLATIONIMPORTANT For installation instructions, click here.
Anchors installed with AT adhesive have been tested in accordance with ICC-ES's Acceptance Criteria for Adhesive Anchors (AC58).
In addition, anchors installed with AT adhesive have been tested in accordance with ICC-ES's Acceptance Criteria for Unreinforced Masonry Anchors (AC60) and NSF/ANSI Standard 61, Drinking Water System Components - Health Effects.
|Consistency (77°F)||ASTM C 881||Non-sag/thixotropic paste|
|Heat deflection||ASTM D 648||149°F (65°C)|
|Bond strength (moist cure)||ASTM C 882||2,900 psi (2 days) 2,970 psi (14 days)|
|Water absorption||ASTM D 570||0.23% (24 hours)|
|Compressive yield strength||ASTM D 695||10,210 psi (7 days)|
|Compressive modulus||ASTM D 695||571,000 psi (7 days)|
|Gel time (77°F)||ASTM C 881||9 min – Thin film|
ACCESSORIES / RELATED PRODUCTS
- Dispensing Tools
- Mixing Nozzles
- Plastic Anchoring Screens
- Stainless Steel Anchoring Screens
- Hole Cleaning Brushes
12 months from date of manufacture in unopened cartridge.
For best results store between 32°F – 80°F. Partially used cartridges can be stored for a limited time by leaving nozzle in place. To re-use, attach new nozzle.
Resin — white, initiator — black When properly mixed, adhesive will be a uniform gray color.
Uncured material — Wipe up with cotton cloths. If desired scrub area with abrasive, water-based cleaner and flush with water. If approved, solvents such as ketones (MEK, acetone, etc.), lacquer thinner, or adhesive remover can be used. DO NOT USE SOLVENTS TO CLEAN ADHESIVE FROM SKIN. Take appropriate precautions when handling flammable solvents. Solvents may damage surfaces to which they are applied. Cured material – Chip or grind off surface.
Very good to excellent against distilled water and inorganic acids. Fair to good against organic acids and alkalis, inorganic alkalis, and many organic solvents. Poor against ketones. For more detailed information, contact Simpson or see Technical Bulletin T-SAS-CHEMRES.
The performance of this product results from its unique formulation which is proprietary to Simpson Strong-Tie. The product may also be protected by one or more of U.S. Pats. 5,643,994; 5,965,635; 6,228,207, licensed from ITW.
Anchoring adhesive shall be a two-component acrylic based system supplied in manufacturer's standard side-by-side or coaxial cartridge and dispensed through a static-mixing nozzle supplied by the manufacturer. Adhesive shall meet the physical requirements of ASTM C-881 for Type I and IV, Grade 3, Class A, B and C and must develop a minimum 10,210 psi compressive yield strength after 7 day cure. Adhesive must have a heat deflection temperature of a minimum 149°F (65°C). Adhesive shall be AT adhesive from Simpson Strong-Tie, Pleasanton, CA. Anchors shall be installed per Simpson Strong-Tie instructions for AT adhesive.
AT Cartridge Systems
- Cartridge Estimation Guides are available here.
- Detailed information on dispensing tools, mixing nozzles and other adhesive accessories is available here.
- Use only appropriate Simpson Strong-Tie® mixing nozzle in accordance with Simpson Strong-Tie instructions. Modification or improper use of mixing nozzle may impair AT adhesive performance.
In-Service Temperature Sensitivity
- Refer to in-service temperature sensitivity chart for allowable bond strength reduction for in-service temperature. See Supplemental Topics - Adhesive Anchors for more information.
- Tinst is the base material temperature during installation and curing of the adhesive.
- Percent allowable load for Tinst = 0°F (-18°C) is to be used for Tinst between 0°F (-18°C) and 70°F (21°C).
- Percent allowable load may be linearly interpolated for intermediate base material in-service temperatures.
- °C = (°F - 32) / 1.8