The two best types of concrete densifiers are sodium silicate densifiers and lithium silicate densifiers. Sodium silicate densifiers are commonly used on old or porous concrete surfaces, while lithium silicate concrete densifiers are used on dense concrete. Sodium silicate concrete densifier reviews and lithium silicate concrete densifier reviews can be found below.
Sodium Silicate Concrete Densifier Reviews
- Armor S2000 Concrete Sealer Review (concentrated)
- RadonSeal Concrete Sealer Review (pre-diluted)
- Stone Technolgies X-1 Concrete Sealer Review (pre-diluted)
- Ashford Formula Concrete Sealer Review (pre-diluted)
Lithium Silicate Concrete Densifier Reviews
- Armor L3000 Concrete Sealer Review (concentrated)
- PS103 Concrete Sealer Review (pre-diluted)
- Lion Hard Concrete Sealer Review (pre-diluted)
Reviewing the Best Concrete Densifiers
Concrete densifiers all work the same – they chemically react with the free lime and calcium in the concrete to form a calcium silicate hydrate barrier within the pores. The silicate densifier simply starts a chemical reaction in the concrete but once the chemical reaction takes place, there is no longer any sealer left. All that is left is the calcium silicate hydrate barrier.
So what makes one concrete densifier better than another concrete densifier? Simple, nothing. Concrete densifiers are one type of concrete sealer that is pretty much the same from one manufacturer to the next. The primary differences between concrete densifier manufacturers are 1) customer service and 2) sealer form (concentrated vs pre-diluted). When choosing a concrete densifier, consider the reputation of the company and the level of customer service you will receive, the price of the product, and whether or not you want to add your own water (concentrated), or pay for water to be shipped (pre-diluted).
De-Bunking Concrete Densifier Marketing Tricks
- Warranties – Don’t be fooled by warranties because all silicates create calcium silicate hydrate within the pores and the caclium silicate hydrate barrier formed can only be removed once the concrete itself is removed.
- Penetration Depth – The concrete densifier doesn’t determine penetration depth, the porosity of the concrete does. Porous concrete will absorb more material than dense concrete. On average, a silicate sealer can penetrate anywhere from 1/4″-6″.
- Coats – Like with penetration depth, the sealer doesn’t determine the amount of coats required, the concrete does. Old and porous concrete will require more material than hard, dense concrete. How much material required, and the number of coats needed, will depend on the porosity of the concrete and the current condition of the concrete.