DEWALT Pure50+ Epoxy Adhesive Anchor System Evaluation Report
ICC-ES Evaluation Report ESR-3576
Reissued July 2025
Report Holder Information
Report Holder: DEWALT
Contact: 701 EAST JOPPA ROAD, TOWSON, MARYLAND 21286
Phone: (800) 524-3244
Website: www.DEWALT.com
Email: anchors@DEWALT.com
Evaluation Subject
PURE50+™ EPOXY ADHESIVE ANCHOR SYSTEM IN CRACKED AND UNCRACKED CONCRETE (DEWALT)
1.0 Evaluation Scope
This report evaluates the Pure50+ Epoxy Adhesive Anchor System for compliance with the following codes:
- 2024, 2021, 2018 and 2015 International Building Code® (IBC)
- 2024, 2021, 2018 and 2015 International Residential Code® (IRC)
The primary property evaluated is structural integrity.
2.0 Uses
The Pure50+ epoxy adhesive anchors are designed to resist static, wind, or earthquake loads in cracked and uncracked normal-weight or lightweight concrete with a specified compressive strength (f'c) of 2,500 psi to 8,500 psi (17.2 MPa to 58.6 MPa).
The anchor system complies with anchors described in Section 1901.3 of the 2024 IBC and may be used where an engineered design is submitted in accordance with Section R301.1.3 of the IRC.
3.0 Description
3.1 General
The Pure50+ Epoxy Adhesive Anchor System consists of a two-component epoxy adhesive in cartridges, static mixing nozzles, dispensing tools, hole cleaning equipment, and adhesive injection accessories. It can be used with continuously threaded steel rods or deformed steel reinforcing bars.
The adhesive and steel anchor elements are installed in pre-drilled holes into concrete. Key components include the epoxy adhesive cartridge, static mixing nozzle, nozzle extension tube, dispensing tool, and typical steel anchor elements.
3.2 Materials
3.2.1 Pure50+ Epoxy Adhesive
An injectable two-component epoxy available in 9-ounce (265 mL), 9.5-ounce (280 mL), 20.5-ounce (610 mL), and 50.5-ounce (1500 mL) cartridges. Each cartridge is marked with the adhesive expiration date and shelf life.
3.2.2 Hole Cleaning Equipment
Standard hole cleaning equipment and dust extraction systems are available. This includes steel wire brushes and compressed air nozzles for standard cleaning, and the DustX+™™ extraction system for automatic hole cleaning during drilling.
3.2.3 Steel Anchor Elements
- Threaded Steel Rods: Must be clean and continuously threaded, with specifications detailed in Table 4 and Figure 3. They must be free of coatings that impair the bond with the adhesive. Various grades and materials (carbon steel, stainless steel) are specified, with requirements for nuts and washers.
- Steel Reinforcing Bars: Deformed reinforcing bars (rebars) as described in Table 3 and Figure 3. They must be clean, straight, and free of coatings that impair the bond.
- Ductility: Steel anchor elements must meet ACI 318-19 Section 2.3 requirements for elongation (at least 14%) and reduction of area (at least 30%) to be considered ductile.
3.3 Concrete
Normal-weight and lightweight concrete must comply with IBC Sections 1903 and 1905. The specified compressive strength (f'c) must be between 2,500 psi and 8,500 psi (17.2 MPa to 58.6 MPa).
4.0 Design and Installation
4.1 Strength Design
Anchor design strengths must be determined in accordance with ACI 318-19 and this report, considering load combinations from Section 1605.1 of the 2024 IBC and ACI 318-19 Section 5.3.
4.1.1 Static Steel Strength in Tension
Nominal static steel strength (Nsa) and strength reduction factors (φ) are provided in Tables 4 and 5.
4.1.2 Static Concrete Breakout Strength in Tension
Calculated per ACI 318-19 Section 17.6.2, with specific factors (kc,cr, kc,uncr) provided in this report. The value of f'c is limited to 8,000 psi (55 MPa).
4.1.3 Static Bond Strength in Tension
Nominal static bond strength (Tk) is calculated per ACI 318-19 Section 17.6.5, influenced by concrete state, drilling method, concrete strength, and installation conditions. Special inspection is typically periodic.
A table summarizes requirements for bond stress, concrete strength, permissible installation conditions, and associated strength reduction factors.
4.1.4 Interaction of Tensile and Shear Forces
Interaction must be calculated per ACI 318-19 Section 17.8.
4.1.5 Minimum Member Thickness, Anchor Spacing, Edge Distance
Values for hmin, smin, and cmin described in this report must be observed. Maximum torque (Tmax) is subject to edge distance and spacing requirements.
4.1.6 Critical Edge Distance
The modification factor (ψcp,Na) is determined per ACI 318-19 Section 17.6.5.5, with specific equations provided.
4.1.7 Design Strength in Seismic Design Categories C, D, E, and F
Anchors must be designed per ACI 318-19 Section 17.10, with adjustments for seismic shear (av, seis) provided in Tables 4 and 5.
4.2 Allowable Stress Design (ASD)
For load combinations per Section 1605.1 of the 2024 IBC, allowable loads are calculated using Tallowable,ASD = φNn/α and Vallowable,ASD = φVn/α.
4.3 Installation
Installation parameters are in Table 8. Installation must follow ACI 318-19 Section 26.7.2 and the manufacturer's printed installation instructions (MPII).
The system can be used for upwardly inclined and horizontal orientations, with specific requirements for piston plugs and hole depths. Anchors must be restrained from movement during curing.
4.4 Special Inspection
Periodic special inspection is required per Section 1705.1.1 and Table 1705.3 of the 2024 IBC. The special inspector verifies anchor type, dimensions, concrete properties, installation procedures, and adherence to MPII.
4.5 Compliance with NSF/ANSI Standard 61
The Pure50+ Epoxy Adhesive Anchor System complies with NSF/ANSI Standard 61 for use in water distribution systems, with a maximum exposed surface area to volume ratio of 216 sq. in. per 1000 gallons.
5.0 Conditions of Use
The Pure50+ Epoxy Adhesive Anchor System is suitable as an alternative to specifications in the codes listed in Section 1.0, subject to the following conditions:
- Installation must be per this report and the manufacturer's MPII.
- Anchors must be installed in cracked or uncracked normal-weight or lightweight concrete with f'c from 2,500 psi to 8,500 psi (17.2 MPa to 58.6 MPa).
- f'c values for calculation must not exceed 8,000 psi (55 MPa).
- Anchors must be installed in holes predrilled per MPII.
- Loads must be adjusted per Section 1605.1 of the 2024 IBC.
- Recognized for short- and long-term loads, including wind and earthquake.
- For Seismic Design Categories C, D, E, and F, anchor strength must be adjusted per Section 4.1.11.
- Permitted in concrete that is cracked or may be expected to crack.
- Strength design values per Section 4.1; allowable stress design values per Section 4.2.
- Minimum spacing, edge distance, and member thickness must comply with this report.
- Calculations and details must be submitted to the code official by a registered design professional.
- Anchors are not permitted to support fire-resistive construction unless specific conditions are met.
- Use under fatigue or shock loading is beyond the scope of this report.
- Zinc-plated carbon steel threaded rods or steel reinforcing bars are limited to dry, interior locations.
- Hot-dipped galvanized and stainless steel rods are permitted for exterior or damp environments.
- Steel anchoring materials in contact with preservative-treated wood must comply with ASTM A153.
- Periodic special inspection is required per Section 4.4.
- Installation in horizontal or upwardly inclined orientations requires personnel certified per ACI 318-19 Section 26.7.1(I) and 26.7.2(e).
- Pure50+ epoxy adhesive is manufactured under an approved quality control program.
6.0 Evidence Submitted
Data submitted in accordance with the ICC-ES Acceptance Criteria for Post-installed Adhesive Anchors in Concrete Elements AC308 (24), including tests for various conditions and loads.
7.0 Identification
Product labels must include the ICC-ES mark, evaluation report number (ESR-3576), and the report holder's name, trademark, or logo.
Packaging must be labeled with lot number, expiration date, and product name.
Threaded rods, nuts, washers, and reinforcing bars must conform to applicable national specifications.
Florida Building Code Supplement
This supplement indicates compliance with the 2023 Florida Building Code-Building and 2023 Florida Building Code-Residential.
For uplift connections, the connection must be designed for no less than 700 pounds (3114 N).
