Sika SikaFlow-678

Sika SikaFlow-678 delivers precision-grade, three-component epoxy grout technology that engineers specifically design for deep-pour applications. Furthermore, this advanced grouting solution excels where high structural performance and precise thermal control become essential. Additionally, the innovative low-exotherm formulation actively minimizes internal heat buildup during the curing process, consequently making it perfect for thick placements reaching up to 18 inches in a single lift.

Outstanding Performance Features That Set SikaFlow-678 Apart

This premium epoxy grout consistently provides exceptional compressive strength while simultaneously offering excellent creep resistance under both dynamic and static loads. Moreover, it delivers superior bond strength to concrete and steel substrates, therefore ensuring long-lasting structural integrity. The extended working time and smooth, low-dusting consistency also allow contractors to achieve reliable placement even in the most demanding industrial environments.

Specifically, facilities such as refineries, power plants, paper mills, and manufacturing operations regularly choose SikaFlow-678 for critical applications. Whether contractors install it beneath compressors, motors, pump bases, or anchor bolts, this grout consistently delivers long-term durability and dimensional stability in high-load, high-temperature, or chemically aggressive conditions.

Key Technical Advantages of SikaFlow-678 Epoxy Grout

Deep Pour Capability for Large-Scale Applications

Engineers can place SikaFlow-678 in lifts up to 18″ thick without requiring reinforcement, which makes it ideal for large baseplates and foundation work. Consequently, contractors save time and reduce material costs on major industrial projects.

Low Exotherm Technology for Controlled Curing

The advanced formulation generates minimal heat, which allows for safer and more controlled curing processes in thick applications. Therefore, installers can work with confidence on deep pours without worrying about thermal cracking.

Superior Strength Development

This high-performance grout achieves impressive 8,000 psi strength in just 1 day, then continues developing to reach up to 14,000 psi at 28 days (ASTM C579). As a result, equipment can return to service faster while maintaining long-term structural integrity.

Exceptional Creep Resistance Under Load

SikaFlow-678 maintains dimensional stability under sustained loads and elevated temperatures. Furthermore, this characteristic proves crucial for heavy machinery installations that experience constant vibration and thermal cycling.

Outstanding Adhesion Properties

The grout bonds securely to both concrete and steel substrates, with tested strengths reaching 2,000 psi and 4,000 psi respectively (Michigan DOT). Additionally, this reliable adhesion ensures that anchor bolts and machinery remain firmly positioned over time.

Extended Working Time for Complex Installations

Contractors benefit from 90–120 minutes of working time at 70°F, which provides ample placement flexibility for complex installations. Moreover, cooler temperatures extend the working time even further, allowing for precise application in challenging conditions.

Primary Applications for SikaFlow-678 Industrial Grout

Engineers purpose-built SikaFlow 678 specifically for installations where strength, flow characteristics, and temperature stability become critical factors. Additionally, it proves particularly valuable in high-load environments or applications requiring thermal cycling resistance with deep grouting capabilities.

Heavy Industrial Equipment Applications:

• Heavy machinery baseplates that require exceptional load transfer
• Drive motors and pumps experiencing constant vibration
• Wind turbines and industrial generators with high dynamic loads
• Anchor bolts, dowels, and structural columns requiring permanent stability
• Concrete repair and rebuilds in demanding industrial environments

Frequently Asked Questions About SikaFlow-678 Epoxy Grout

Understanding the technical specifications and application methods of SikaFlow-678 helps contractors achieve optimal installation results. Therefore, we’ve compiled answers to the most common questions about this high-performance epoxy grout.

What Makes SikaFlow-678 Suitable for Deep Pour Applications?

SikaFlow-678 features an innovative low-exotherm formula that specifically allows for thick lifts up to 18″ without requiring reinforcement. Furthermore, this advanced formulation prevents thermal cracking risks that commonly occur with standard grouts. Consequently, contractors can complete large-scale grouting projects more efficiently while maintaining superior quality standards.

Can Contractors Pump SikaFlow-678 for Large Installations?

Yes, SikaFlow-678 works seamlessly with both peristaltic and piston pump systems. Moreover, professionals can convey it up to 50 feet using 1.5″ diameter lines. Additionally, engineers recommend using a headbox for large or obstructed placements to ensure optimal flow characteristics and consistent placement quality.

How Long Does SikaFlow-678 Remain Workable During Installation?

At standard 70°F temperatures, it provides 90 to 120 minutes of working time. However, cooler ambient temperatures extend this working period even further. Therefore, contractors gain additional flexibility for complex installations, particularly in challenging environmental conditions or when precise placement becomes critical.

Is SikaFlow-678 Resistant to Chemically Aggressive Environments?

Absolutely. SikaFlow-678 exhibits excellent chemical resistance properties, making it highly suitable for facilities exposed to oils, solvents, and various corrosive agents. Furthermore, this resistance ensures long-term performance in industrial environments where chemical exposure regularly occurs. Consequently, it performs reliably in refineries, chemical plants, and manufacturing facilities with aggressive chemical conditions.

What Surface Preparation Methods Work Best?

Contractors must roughen concrete surfaces to achieve a CSP 5–9 profile while ensuring complete removal of dust, oil, and moisture contamination. Additionally, professionals should chamfer all edges to minimize potential cracking during the curing process. Moreover, proper surface preparation directly impacts the adhesion strength, which can reach up to 2,000 psi on concrete and 4,000 psi on steel substrates when applied correctly.

How Quickly Does SikaFlow-678 Develop Strength?

SikaFlow-678 achieves impressive early strength development, reaching 8,000 psi in just 24 hours. Subsequently, it continues strengthening to reach up to 14,000 psi at 28 days (ASTM C579). Therefore, equipment can return to service faster while maintaining exceptional long-term structural integrity under demanding load conditions.