Sika Sikadur-42 Grout-Pak

Sika Sikadur-42 Grout-Pak is a high-performance, three-component epoxy grouting system formulated to meet the rigorous demands of industrial construction and equipment installation. Pre-proportioned for convenience and accuracy, this 100% solids grout ensures consistent performance with every batch, reducing the margin for error in the field. It’s engineered specifically for critical baseplate applications where alignment, structural integrity, and long-term durability are essential.

Designed to tolerate moisture and perform under a range of environmental conditions, Sikadur-42 Grout-Pak bonds effectively to both steel and concrete substrates, making it well-suited for grouting beneath heavy rotating machinery, skid-mounted systems, compressors, reciprocating engines, and crane rails. It is also a reliable solution for precision grouting in wind turbine tower bases and pour-back applications in post-tensioned structures such as segmental bridges.

The system offers excellent flowability for full contact under baseplates, even in tight clearances, and gains strength rapidly — reaching over 14,000 psi compressive strength in just a few days at standard temperatures. Its low peak exotherm allows for thicker pours without risking thermal stress or cracking. With high vibration resistance, strong adhesion, and proven chemical durability, it supports long-term stability in even the most demanding settings.

Key Features of Sikadur-42 Grout-Pak

• Pre-Proportioned Kit
  Ready-to-use packaging eliminates guesswork and simplifies field mixing.
• Fast Strength Gain
  Reaches compressive strengths over 14,000 psi in as little as three days at 73°F, enabling quicker equipment turnaround.
• Excellent Flow Characteristics
  Low-viscosity formulation ensures complete contact under baseplates with minimal air entrapment.
• High Bearing Area
  Delivers over 95% effective bearing surface contact for enhanced load distribution.
• Durable and Chemical Resistant
  Withstands exposure to stress, vibration, corrosion, and various industrial chemicals.
• Wide Temperature Tolerance
  Performs reliably across a broad application range (41–86°F substrate and product temperature).

Recommended Uses for Sikadur-42 Grout-Pak

Sikadur-42 Grout-Pak is well suited for demanding industrial environments where vibration, impact loads, and alignment precision are critical. Its performance characteristics make it a trusted option for foundational support beneath vital infrastructure and equipment.

Common Applications:

• Baseplates for compressors, turbines, and pumps
• Wind turbine tower foundations
• Crane rail grouting
• Segmental bridge pour-back anchorage
• Presses and vibratory machinery installations
• Chemical plant and food-processing environments (USDA certifiable)

Frequently Asked Questions (FAQ)

What is the minimum and maximum pour depth of Sikadur-42 Grout-Pak?
Minimum grout depth is 1 inch. Maximum is 4 inches per lift. Deeper pours should be layered.

How long is the pot life of it once mixed?
Approximately 90 minutes at 73°F. Cooler temperatures may extend working time.

Does Sikadur-42 Grout-Pak require any special surface preparation?
Yes. Substrates must be clean, sound, and free of oils, laitance, and coatings. Concrete must be at least 3,000 psi and stable. Metal surfaces should be sandblasted to white finish.

Can Sikadur-42 be used in food processing areas?
Yes. It is USDA certifiable for incidental food contact when properly cured.

Is Sikadur-42 Grout-Pak resistant to vibration and impact?
Yes. The formulation is designed for high vibration environments and offers excellent bond and impact resistance.

Is it suitable for outdoor installation?
Yes, but it must be protected from direct sunlight and rain for 24 hours before and 48 hours after placement.