The use of a concrete densifier with an additional sealer is a recent trend that has made its way onto the surface of garage floors and workshop floors. Densifiers have been utilised in the garage on occasion for a number of reasons, but seldom as a full garage flooring solution. So, what is the reason for the progressive development in its use and popularity for garage floors?

The reason for this is that certain densifiers contain silicone and siliconate compounds that serve as a sealant. This contributes to the creation of a floor that is not only water repellent, but also resistant to liquids and chemicals in general. In fact, this densifier/sealer combo has quickly become one of the greatest bargains for a bare concrete sealer.

So, let’s take a deeper look at how a concrete densifier with sealant on your garage floor might help you. In addition, we’ll go through the products we think are the best and why.


Concrete densifiers have been around for a long time. They are a concrete hardener that has been largely utilised for concrete floor polishing, enhanced abrasion resistance, dust control, and moisture mitigation. They are most commonly used on machine troweled, hard troweled, and smooth concrete.

They are sometimes used to cure a soft concrete surface or as a dusting treatment for concrete. Bleed water rises to the surface of the concrete as it dries, increasing the water-to-cement ratio. This procedure can aid in smoothing the surface of concrete. It can, however, provide a surface that is softer than the underlying cement. This is due to an increase in laitance and fine particles carried to the surface by the bleed water.

When a densifier is added, a chemical reaction occurs that can enhance the surface strength of concrete by 20% to 40%, depending on the initial pour and finish of the concrete. But how can one go about doing so?

Densifiers are a water-based chemical solution that initially acts by permeating the concrete’s surface. They combine with calcium hydroxide to form calcium silicate hydrate (CSH). This is the material that provides the strength of concrete.

Following that, the CSH generated fills the open pores and capillaries of the concrete. This is what causes the density and strength to grow at the surface.

The most frequent choice for garage flooring and workshops is lithium silicate densifiers.


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