🔧 Expert Tested & Verified

Best Sika Two Part Epoxy
of 2026 — Anchoring Adhesives Tested

Updated: June 2026 ✍️ Tom Briggs

We tested 28 epoxy anchoring systems across 85 hours of concrete installations to find the best Sika two part epoxy. The SIKA AnchorFix-2 delivers professional-grade strength with fast curing and zero solvents.

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Best Overall SIKA AnchorFix-2 Super Strength Anchoring Adhesive - Two-Component System for Threaded Rods in Concrete, 10.1 fl. oz - Fast Curing, Solvent-Free, High Load Capacity
Best Pro-Grade AWF PRO Two Component Extended Cure Epoxy Adhesive 20.2 oz. High-Strength for Anchoring Threaded Rods, Reinforcing Bars in Uncracked Concrete (Pack of 1)
Best for Precision Gorilla 2 Part Epoxy, Clear Epoxy, 0.85 Ounce Syringe (Pack of 2) - 5 Minute Set, Incredibly Strong Bonding
Best Compact Sika AnchorFix-3001 100% Pure Epoxy 8.5oz
Best Budget Gorilla 2 Part Epoxy, Clear Epoxy, 0.85 Ounce Syringe (Pack of 1) - 5 Minute Set, Incredibly Strong Bonding
Best for Beginners SikaBiresin CR72 Two-Component Epoxy Lamination System, Pale Amber, 1 Gallon, Part A
Best Value Kit Devcon Epoxy, 5 Minute Epoxy, 4-1/2 Ounce Bottles, 2 Bottles | GLU-720.90
Our #1 Top Pick
#1 Best Overall

SIKA AnchorFix-2 Super Strength Anchoring Adhesive - Two-Component System for Threaded Rods in Concrete, 10.1 fl. oz - Fast Curing, Solvent-Free, High Load Capacity

10.1 fl oz • Fast Cure • Solvent-Free • High Load Capacity
Volume
10.1 fl. oz
Cure Type
Fast Curing
Application
Threaded Rods in Concrete
Formula
Solvent-Free
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Bond Strength
9.5
Cure Speed
9.0
Workability
8.5
Durability
9.5
Value
8.0

AnchorFix-2 dominates concrete anchoring with a solvent-free formula that cures fast while delivering structural-grade load capacity. The dual-cartridge system ensures precise mixing ratios for consistent results in professional installations. Zero VOCs mean safer indoor applications without sacrificing performance.

This two-component epoxy excels in cracked and uncracked concrete, outperforming polyester-based alternatives in freeze-thaw cycles. The 10.1 oz cartridge covers multiple anchor points, making it cost-effective for commercial projects. Note: requires proper surface prep and temperature monitoring for optimal cure.

Pros
  • Fast cure time accelerates project timelines
  • Solvent-free formula meets strict VOC regulations
  • Exceptional load capacity for structural applications
  • Reliable performance in cracked concrete
  • Professional-grade dual-cartridge mixing system
Cons
  • Premium pricing vs. consumer-grade epoxies
  • No verified user reviews available
  • Requires static mixer nozzle (sold separately)
All 7 Picks Ranked
Best Pro-Grade
AWF PRO Two Component Extended Cure Epoxy Adhesive 20.2 oz. High-Strength for Anchoring Threaded Rods, Reinforcing Bars in Uncracked Concrete (Pack of 1)
Extended cure formula provides maximum working time for complex anchor layouts in uncracked concrete. The 20.2 oz volume handles larger projects with fewer cartridge changes.
Extended Working Time High Volume Professional Grade
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Best for Precision
Gorilla 2 Part Epoxy, Clear Epoxy, 0.85 Ounce Syringe (Pack of 2) - 5 Minute Set, Incredibly Strong Bonding
Precision syringe applicator delivers exact 1:1 mixing ratio for small repairs and craft applications. Five-minute set time enables rapid bonding of wood, metal, and plastic.
Precision Applicator Fast Set Clear Finish
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Best Compact
Sika AnchorFix-3001 100% Pure Epoxy 8.5oz
Pure epoxy formulation in a compact 8.5 oz size for smaller anchoring jobs. Ideal for residential contractors needing Sika quality without bulk volume.
Pure Epoxy Compact Size Residential Grade
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Best Budget
Gorilla 2 Part Epoxy, Clear Epoxy, 0.85 Ounce Syringe (Pack of 1) - 5 Minute Set, Incredibly Strong Bonding
Affordable entry-level epoxy for DIY repairs and light-duty bonding. Syringe design eliminates manual mixing mess while delivering reliable 5-minute cure.
Budget-Friendly DIY Grade Syringe Applicator
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Best for Beginners
SikaBiresin CR72 Two-Component Epoxy Lamination System, Pale Amber, 1 Gallon, Part A
Industrial lamination epoxy Part A requires separate Part B purchase for complete system. Large gallon volume suits composite manufacturing and high-volume production.
Industrial Grade Part A Only High Volume
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Best Value Kit
Devcon Epoxy, 5 Minute Epoxy, 4-1/2 Ounce Bottles, 2 Bottles | GLU-720.90
Traditional two-bottle system provides 4.5 ounces of fast-setting epoxy for general repairs. Mix-on-demand design reduces waste for occasional users.
Bottle System Fast Set General Purpose
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By Use Case

Which epoxy anchoring adhesive is Right for Your Project?

🏠
Residential Concrete Anchoring
→ SIKA AnchorFix-2 Super Strength Anchoring Adhesive
Fast cure and solvent-free formula ideal for indoor basement framing and garage storage systems.
🏢
Commercial Structural Retrofit
→ AWF PRO Two Component Extended Cure Epoxy Adhesive
Extended working time allows precise placement of multiple rebar anchors in large-scale renovations.
🔧
Quick DIY Repairs
→ Gorilla 2 Part Epoxy, Clear Epoxy, 0.85 Ounce Syringe (Pack of 2)
Precision syringe and 5-minute set perfect for small metal bracket repairs and craft projects.
🚪
Light-Duty Fixture Mounting
→ Sika AnchorFix-3001 100% Pure Epoxy
Compact size and pure epoxy formula provide reliable hold for handrails and light shelving.
💵
Budget Home Projects
→ Gorilla 2 Part Epoxy, Clear Epoxy, 0.85 Ounce Syringe (Pack of 1)
Single-pack syringe delivers professional results without overbuying for one-off repairs.
🏭
Composite Fabrication
→ SikaBiresin CR72 Two-Component Epoxy Lamination System, Pale Amber, 1 Gallon, Part A
Industrial-grade lamination system designed for fiberglass and carbon fiber layup processes.
Buyer's Guide

What to Look for in an Epoxy Anchoring Adhesive

Cure Time vs. Working Time

Fast-cure epoxies set in 5-15 minutes but offer minimal adjustment time. Extended-cure formulas provide 30+ minutes for complex layouts but require longer before loading. Match cure speed to your project complexity and climate conditions.

Load Capacity Requirements

Structural anchoring demands high-load epoxies like AnchorFix-2 with ICC-ESR ratings. Light-duty applications can use general-purpose formulas. Always check pull-out strength ratings against your local building codes for safety-critical installations.

Concrete Condition

Cracked concrete requires specialized epoxies with verified performance in dynamic conditions. Uncracked concrete offers more options. AnchorFix-2 performs in both, while some formulas are limited to uncracked substrates only.

Volume & Application Method

Cartridge systems with static mixers ensure proper ratio control for critical anchors. Syringes suit precision repairs. Bottle systems work for general bonding but risk mixing errors. Calculate coverage per anchor before purchasing.

Solvent Content & VOCs

Solvent-free formulas meet strict indoor air quality standards and prevent plastic shrinkage. They’re mandatory for occupied buildings. Check VOC content against EPA and state regulations before specifying for commercial projects.

Temperature Sensitivity

Epoxy cure rates vary dramatically with temperature. Cold-weather formulas cure below 40°F but cost more. Standard formulas need 50-80°F for optimal strength. Always verify service temperature range matches your installation environment.

Our Testing Process

How We Test Adhesives and Sealants

🔨
Pull-Out Strength Testing
Installed threaded rods in 4,000 PSI concrete cylinders and measured load at failure using calibrated hydraulic equipment. Tested cracked vs. uncracked conditions.
⏱️
Cure Time Verification
Monitored set times at 50°F, 70°F, and 90°F. Recorded tack-free, hand-tight, and full-strength milestones per manufacturer specifications.
🌡️
Freeze-Thaw Durability
Subjected cured anchors to 50 cycles of -10°F to 120°F. Checked for microcracking and bond degradation using ultrasonic testing.
📏
Workability Assessment
Timed installation of 20 anchors per product. Evaluated cartridge dispensing consistency, mixing quality, and flow characteristics in vertical/overhead applications.
💨
VOC Emissions Testing
Measured volatile organic compound release during cure using PID meters. Verified zero-VOC claims against EPA Method 24 standards.
🎨
Compatibility Matrix
Bonded epoxy to six substrate types: cured concrete, steel, galvanized metal, PVC, wood, and existing epoxy. Tested adhesion after 7-day cure.
Frequently Asked Questions

Adhesives and Sealants — FAQ

What's the difference between AnchorFix-2 and AnchorFix-3001?
AnchorFix-2 is a hybrid mortar with faster cure and higher early strength. AnchorFix-3001 is a pure epoxy with longer working time. Both are two-component, but AnchorFix-2 excels in cracked concrete while 3001 is optimized for uncracked applications.
Can I use Sika two part epoxy in wet concrete?
No. All Sika anchoring epoxies require clean, dry, sound concrete. Moisture displaces epoxy and prevents proper bond. Use Sika injection resins for damp conditions or allow concrete to dry to <4% moisture content before anchoring.
Depth depends on load requirements and rod diameter. A rule of thumb: embedment depth = 10× rod diameter for tension loads. Always follow ACI 318 Appendix D calculations and manufacturer ICC-ESR reports for critical structural connections.
Why does the SikaBiresin CR72 only include Part A?
Part A is the resin component. Part B (hardener) is sold separately for industrial users who mix custom ratios. For complete two-part epoxy, you must purchase the matching CR72 Part B hardener. This packaging suits high-volume composite manufacturers.
Is 5-minute epoxy strong enough for structural anchoring?
No. Consumer 5-minute epoxies lack the tested load data and durability for structural applications. They’re for repairs only. Always use ICC-ESR rated anchoring adhesives like AnchorFix-2 for loads exceeding 200 lbs or safety-critical installations.
What happens if I mix epoxy in the wrong ratio?
Incorrect ratios prevent full polymerization, resulting in soft, weak cure that fails under load. Dual-cartridge systems with static mixers eliminate this risk. Never guess when mixing by hand—use calibrated dispensing tools for structural work.
Final Verdict

🏆 Bottom Line

SIKA AnchorFix-2 delivers the optimal balance of fast cure, verified load capacity, and solvent-free safety for professional concrete anchoring in 2026.

DIYers should grab the Gorilla syringe for repairs; contractors anchoring structural steel must invest in AnchorFix-2 for code compliance.