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FIRMbond™ Concrete Bonding & Curbing Adhesive
High-Strength Concrete Bonding for Curbing, Traffic Control & Infrastructure Projects
A two-component epoxy polysulfide adhesive engineered for durable concrete bonding, sealing, and curbing installation.
Built for Demanding Concrete Applications
FIRMbond™ is a two-component, 100% solids epoxy polysulfide rubber adhesive designed for concrete bonding and sealing applications where long-term durability matters.
Engineered for bonding hardened concrete to hardened concrete, as well as fresh concrete to existing concrete, FIRMbond™ delivers the strength and reliability required for curbing installations, traffic control projects, and infrastructure applications.
With excellent chemical resistance, no-sag performance, and compliance with ASTM C-881 and AASHTO M235 standards, FIRMbond™ helps contractors and municipalities create secure, long-lasting bonds in demanding environments.
Why FIRMbond®
Strong, Durable Bonds
Designed to create high-strength bonds between concrete surfaces while maintaining long-term performance in outdoor environments.
Built for Infrastructure Applications
Ideal for precast and extruded curbing, traffic control systems, walkways, and roadway projects.
Bonds Multiple Substrates
Adheres to concrete, steel, aluminum, fiberglass, and wood, providing flexibility across a wide range of installation requirements.
Superior Chemical Resistance
Resists exposure to harsh environmental conditions and common chemicals that can degrade conventional bonding systems.
Easy Color-Coded Mixing
Simple 2:1 mix ratio with contrasting component colors helps ensure proper mixing and application consistency.
Industry-Compliant Performance
Certified to meet ASTM C881 and AASHTO M235 requirements for epoxy bonding systems.
Who It’s For
FIRMbond™ is designed for professionals responsible for installing and securing concrete infrastructure.
- Concrete contractors
- Curbing installers
- Transportation agencies
- Road construction contractors
- Municipal public works departments
- Parking lot and roadway contractors
Common Applications
- Precast curbing installation
- Extruded curbing installation
- Traffic lane control systems
- Turn lanes and lane separation
- Roundabout traffic control
- Walkways and pedestrian pathways
- Concrete bonding and repair
- Concrete sealing applications
How to Apply FIRMbond™
- Ensure surfaces are clean, dry, and structurally sound.
- Mix Part A and Part B at a 2:1 ratio until a consistent gray color is achieved.
- Apply adhesive to the prepared surface.
- Position components and allow the adhesive to cure.
- Develop a durable, long-lasting bond designed for demanding service conditions.
Product Details
Color:
| Part A EAS-08 A | White – 18M101 (formerly 18M001) |
| Part B EAS-08 B | Black – 212K201 (formerly 212M103) |
Product should be Gray when properly mixed and ready for use.
Key Properties
| Volume Solids | 100% |
| Weight Solids | 100% |
| Density | 10.6 lbs/gallon |
| Viscosity (cP) Brookfield @ 77 °F | Pt. A 60,000 Pt B. 40,000 |
| Pot Life (1 lb. Batch @ 70 °F) | 25 minutes |
Build with Confidence
Whether you’re installing curbing, bonding concrete structures, or securing traffic control infrastructure, FIRMbond™ delivers the strength, durability, and reliability needed for long-term performance.
FAQS
FIRMbond™ is primarily used for bonding concrete surfaces, installing precast and extruded curbing, traffic control systems, walkways, and other infrastructure applications.
Yes. FIRMbond™ bonds concrete, steel, aluminum, fiberglass, and wood.
Part A and Part B are different colors. When properly mixed, the adhesive becomes a uniform gray color.
Yes. FIRMbond™ is certified to meet ASTM C881 and AASHTO M235 requirements for epoxy bonding systems.
Yes. FIRMbond™ is designed for exterior infrastructure applications and provides excellent durability and chemical resistance in demanding environments.