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  • Endurable Concrete Hardener

$92.00

Endurable Concrete Hardener is nearly 100% pure silica at a size between 3 & 8 nanometers. The proprietary solution in which it is suspended, provides low surface tension, resulting in excellent penetration of the silica into the concrete. The reaction of the silica with the remaining unreacted calcium hydroxide in the concrete, forms calcium silica hydrate. When concrete is poured, calcium silica hydrate is formed as the concrete cures. This process only continues, as the concrete remains wet.

After the concrete is dry, no additional calcium silica hydrate is formed and the top surface of the concrete is usually left with unreacted calcium hydroxide, also known as lime. Obviously, the first part of the concrete to dry is the surface, therefore leaving a substantial amount of unreacted calcium hydroxide. This unreacted calcium hydroxide is akin to an epoxy with only the first component used. The Endurable Concrete Hardener acts like the second component of the epoxy to actually create the chemical reaction, leaving the concrete harder and more abrasion-resistant.

Colloidal Silica is distinctive in its ability to bond to the silica already present in concrete and it can also bond to itself. This allows for a much greater density than can be found with any silicates. The families of silicates include sodiums, potassiums, and lithiums. None of these products can match the abilities of colloidal silica to bond with the silica in the concrete, nor can they bond to themselves.

When looking to choose the best hardener, one should look at the superior technology of colloidal silica over the other silicate families. The size of particle should also be considered. The smaller the particle size, the better the results as there are more reaction points and the product can travel farther into the concrete at the smaller size. Endurable Concrete Hardener is a colloidal silica with the smallest particle size available at 3 to 8 nanometers, making it the best choice for a concrete hardener.

[Coverage Rates]

  • 4 gallon concentrate: 1200-2800 (porosity dependent)
  • 20 gallon concentrate: 6000-14000 (porosity dependent)

Runyon Surface Prep Supply

Main Office: 888.920.8132
West Coast: 800.785.7034

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