Sika SikaFlow 649

Sika SikaFlow 648 is a precision epoxy grout formulated for industrial equipment grouting where strength, durability, and chemical resistance are critical. It offers reliable performance in high-load, high-vibration, and chemically aggressive environments.

  • High early and ultimate compressive strength
  • Excellent flow for tight or deep placements
  • Low-dusting for cleaner, safer application
  • Resists chemicals, moisture, and freeze/thaw cycles
  • Pumpable for large volume or long-distance grouting

Sika Sikaflow 649 Datasheet

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SikaFlow 649 represents a precision-grade, three-component epoxy grout solution. Furthermore, it’s specifically engineered for heavy-duty industrial equipment installations. Most importantly, this advanced formula delivers exceptional flow, strength, and thermal performance.

Advanced Formulation for Superior Results

This innovative epoxy grout combines low-viscosity resin with carefully graded aggregate. As a result, it achieves remarkably high flow rates during installation. Additionally, the material flows easily under baseplates, soleplates, and structural supports. Even in tight clearance situations, SikaFlow 649 performs exceptionally well.

Moreover, the high-flow formulation significantly reduces labor effort. At the same time, it maintains structural-grade compressive strength. In fact, it exceeds 20,000 psi under optimal curing conditions.

Versatile Applications Across Industries

SikaFlow 649 excels in both static and dynamic load transfer applications. Consequently, it performs reliably in challenging industrial environments. These include refineries, steel mills, and power generation facilities. Additionally, it works exceptionally well in marine structures.

Furthermore, this epoxy grout offers outstanding bond strength to steel and concrete. It also provides high effective bearing area and very low creep characteristics. Therefore, it ensures long-term dimensional stability under sustained mechanical stress.

Superior Chemical and Thermal Resistance

The formula demonstrates excellent resistance to chemical exposure. Similarly, it withstands thermal cycling effectively. As a result, it supports equipment subjected to intense vibration and torque. Additionally, it handles significant temperature variations with ease.

✨ The epoxy grout you need, all in one place.

Need a standard pour? Take a look at SikaFlow 648 Epoxy Grout?

SikaFlow 648

Key Performance Features

High Early and Ultimate Strengths

SikaFlow 649 achieves impressive 20,000 psi compressive strength within 96 hours at 90°F. Consequently, it ensures rapid turnaround times. Moreover, it maximizes equipment uptime for critical operations.

Optimized High-Temperature Performance

This epoxy grout maintains structural integrity in demanding conditions. Specifically, it performs reliably in service temperatures exceeding 140°F. Therefore, it’s ideal for high-temperature industrial environments.

Exceptional Flow Characteristics

The material is designed for easy placement in complex forms. Additionally, it features a low fill ratio of 5.06:1. As a result, it offers improved pumpability. Furthermore, it reduces labor requirements significantly.

Strong Adhesion Properties

SikaFlow 649 delivers excellent bond strength up to 5,000 psi in slant shear testing. Consequently, it provides reliable load transfer. Moreover, it creates dependable structural connections.

Industry Standard Compliance

This epoxy grout conforms to API 610 and API RP 686 standards. Therefore, it meets critical requirements for rotating equipment installations. Additionally, it aligns with industry best practices.

Long-Term Durability

The formula offers low creep characteristics and superior abrasion resistance. Furthermore, it provides excellent chemical durability. Additionally, it exhibits minimal shrinkage for long-term performance reliability.

Recommended Applications

SikaFlow 649 is ideally suited for equipment grouting where reliable support is essential. Moreover, excellent flowability is crucial for successful installations.

Primary Applications Include:

    • Baseplate grouting for compressors, turbines, pumps, and generators
    • Wind turbine tower foundation installations
    • Crane rail support systems
    • Pour-back applications around post-tensioning cables
    • Anchoring bars and dowels in structural applications
    • Large rotating machinery installations
    • Vibrating equipment exposed to high impact loads

Complete Technical Specifications – SikaFlow 649

Professional-grade epoxy grout with comprehensive performance data for critical industrial applications.

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20,000 PSI Ultimate Strength
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140°F Service Temperature

API 610 & RP 686 Certified
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50-120 min Working Time

Compressive Strength Development: Temperature-dependent curing for optimal performance
Time 55°F (13°C) 73°F (23°C) 90°F (32°C)
8 hours 700 psi 9,400 psi
24 hours 1,300 psi 11,500 psi 16,000 psi
96 hours 16,700 psi 18,000 psi 20,000 psi

Physical Properties: Superior performance characteristics for demanding applications
Property Value Standard
Tensile Strength 2,300 psi ASTM C 307
Bond Strength (Steel) 5,000 psi Slant Shear
Water Absorption 0.076% ASTM C 413
Linear Shrinkage 0.00065 in/in ASTM C 531

Application Information: Variable flow rates and working times for optimal placement
Parameter Standard Mix High-Flow Mix
Fill Ratio 6.75:1 (4 bags) 5.06:1 (3 bags)
Coverage 1.73 ft³ 1.35 ft³
Working Time @ 70°F 90-120 minutes
Max Pump Distance 50 feet (15.2 m)


API 610 & RP 686 Certified

High-Temperature Performance

Superior Bond Strength
Professional Installation Required: Contact our technical team for project-specific recommendations and pre-job consultation

Frequently Asked Questions

What is the working time at different temperatures?

At 70°F, the working time ranges from 90-120 minutes. However, at 90°F, it shortens to 50-60 minutes. Additionally, cooler temperatures extend the pot life significantly.

How much coverage does one unit provide?

The high-flow mix using 3-bag aggregate configuration yields approximately 1.35 ft³ per 230 lb unit. Therefore, coverage calculations are straightforward for project planning.

Can this epoxy grout be pumped?

Yes, SikaFlow 649 is specifically designed for pumping applications. Furthermore, it works with both peristaltic and piston pumps. Additionally, the high-flow version pumps effectively over distances up to 50 feet.

What are the placement thickness limits?

The minimum placement thickness is ½ inch (13 mm). However, for lifts exceeding 6 inches (152 mm), consult with a sales representative first. Additionally, proper planning ensures optimal results.

Is vibration required during placement?

No vibration is necessary during placement. Instead, use long, slow strokes with tools like straps or boards. Moreover, avoid vibration as it may introduce unwanted air pockets.

What chemical resistance does it offer?

SikaFlow 649 resists various chemicals found in industrial environments. Specifically, it handles oils and solvents effectively. Additionally, it demonstrates low water absorption characteristics.

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