Stopaq: The Smart Solution for Tank Chime Repair and Long-Term Corrosion Protection

For decades, Stopaq has led the industry in visco-elastic coating innovation—delivering corrosion protection solutions trusted by asset owners around the world since 1988. Designed to bond permanently to virtually any substrate with minimal surface preparation, Stopaq products are known for their ease of use, reliability, and environmental safety.

When it comes to storage tank protection, few areas are more critical—or more challenging—than the tank chime. This narrow, hard-to-reach space where the tank shell meets the foundation is especially prone to corrosion caused by trapped moisture, poor drainage, and environmental exposure. Stopaq provides a simple, proven, and long-lasting solution.

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A Complete System for Tank Chime Sealing

The Stopaq tank chime repair system combines three key components that work together to deliver a comprehensive corrosion barrier:

1. Stopaq 4200 Filler – A highly viscous, non-curing material that flows into cracks, voids, and irregular gaps around the tank chime area. It effectively eliminates pathways for moisture ingress, even in tight or complex geometries.

2. Stopaq Wrappingband EZ – A flexible, visco-elastic coating that permanently seals and protects the substrate. It adapts to movement, vibration, and temperature changes, maintaining a continuous, water-tight barrier for decades.

3. Stopaq Primer and Topcoat – Used as part of the system to strengthen concrete, improve adhesion, and deliver a clean, finished look.

Together, these products form a permanent, flexible, and non-toxic protective system that dramatically extends the life of tank bottoms and foundations.

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Why Stopaq is the Smart Choice for Tank Chime Repairs

Deep Penetration and Adhesion
Stopaq 4200 Filler penetrates deeply into micro-cracks and irregularities, ensuring that every potential moisture path is sealed.

Minimal Surface Preparation
Unlike conventional coatings that demand blasting and extensive cleaning, Stopaq materials require only minor surface preparation—saving time, labor, and cost.

Non-Toxic and Installer-Friendly
Stopaq products are completely non-toxic and free from VOCs, making them safe for both applicators and the environment.

Ideal for Confined or Narrow Spaces
4200 Filler easily reaches gaps between the tank skirt and foundation, bolt threads, and other areas where traditional coatings struggle to perform.

Flexible and Non-Curing
Because both 4200 Filler and Wrappingband EZ remain flexible, they won’t crack, harden, or lose adhesion over time. The result is lifelong corrosion prevention with zero stress buildup.

Easy Application and Integration
Wrappingband EZ’s non-woven surface allows it to be overcoated or insulated after installation. The filler can be applied precisely using injection tools—streamlining application and minimizing waste.

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Lifelong Protection for Critical Assets

By combining Stopaq 4200 Filler with Wrappingband EZ, operators achieve robust, long-lasting protection against water ingress and corrosion in the critical tank chime area. This system not only prevents future damage but also extends the overall lifespan and structural integrity of storage tanks.

When your goal is long-term corrosion prevention with minimal downtime and maximum reliability, Stopaq provides the smart, proven solution.