Share the Success: Walmart HQ, San Bruno (CA)

Introduction and Overview

The Walmart Headquarters project in San Bruno, CA, is an excellent example of how SpecChem products can be effectively utilized in large-scale construction. This project, managed by Hoem & Associates, spanned an impressive 8,500 square feet.

This Walmart HQ Project was a new build in San Bruno, CA utilizing SpecPoxy 1000, SpecFlow, SpecLevel PCT-AGG . The existing concrete surface had multiple hairline cracks and was highly irregular. A reliable solution was needed to prepare this surface for the new construction without compromising quality.

Step-by-Step Process

Step 1: Application of SpecPoxy 1000

The project began with the use of SpecPoxy 1000 for detailing the hairline cracks. This product served a dual purpose—it sealed the cracks and acted as an epoxy primer.

Step 2: Sand Broadcasting

Once SpecPoxy 1000 was applied, a full sand broadcast was conducted. This helped to create a textured surface which is crucial for the next steps. The following day, workers vacuumed the excess sand to prepare for the next application.

Step 3: Pouring SpecFlow

After ensuring the surface was free of excess sand, workers poured SpecFlow. This crucial step helped to level out the irregular concrete surface completely.

Step 4: Mechanical Abrasion to CSP #3

To ensure the surface could bond well with subsequent layers, the SpecFlow surface was mechanically abraded to achieve CSP #3. Achieving this specific texture profile ensured maximum adhesion for the next layer of SpecPoxy 1000.

Step 5: Reapplication of SpecPoxy 1000 and Sand Broadcast

Once the surface met the required texture profile, SpecPoxy 1000 was re-applied followed by another round of full sand broadcast. The workers again vacuumed excess sand the following morning to prepare for the final layer.

Step 6: Pouring SpecLevel PCT-AGG

The final step involved pouring a continuous flow of 3-bag mixes of SpecLevel PCT-AGG. This product was chosen for its ability to create a smooth, durable finish, perfectly suitable for a high-traffic area like a corporate headquarters.

Results & Impact

Positive Outcomes

Thanks to the efficient application of SpecChem products, the Walmart HQ project saw significant improvements:

  1. Sealed Cracks: The hairline cracks were effectively sealed, preventing future issues.
  2. Level Surface: The SpecFlow created an impeccable, level surface ready for the final application.
  3. Durable Finish: The SpecLevel PCT-AGG provided a durable, smooth finish capable of withstanding high foot traffic.

Product Write-Up

SpecPoxy 1000

SpecPoxy 1000 is a high-performance epoxy primer used to seal hairline cracks and prepare surfaces for further treatment. It’s known for:

  • Versatility: Can be used on various concrete surfaces.
  • Adhesion: Provides excellent bonding properties.
  • Dual Functionality: Acts as both a sealer and a primer, simplifying the prep process.


SpecFlow is a high-strength, self-leveling underlayment designed to create a smooth, level surface over irregular concrete substrates:

  • Self-Leveling: Ensures a perfectly level finish every time.
  • Durability: Built for high-traffic areas, making it perfect for corporate and commercial settings.
  • Compatibility: Works well with other SpecChem products, providing a robust subsequence base.

SpecLevel PCT -AGG

SpecLevel PCT-AGG is a high-performance, polishable concrete topping designed for seamless, durable finishes:

  • High Flowability: Allows for easy application and a smooth finish.
  • Polishable: Provides a high-gloss, aesthetically pleasing finish suitable for high-visibility areas.
  • Performance: Engineered for long-lasting durability, ideal for places with heavy foot traffic like corporate headquarters.

The Walmart HQ project in San Bruno, CA, exemplifies the superior performance and application versatility of SpecChem products. By effectively addressing the initial surface challenges and achieving a high-quality, durable finish, SpecChem has once again demonstrated why it remains a trusted name in the concrete chemicals industry.



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