Difference Between
What is the difference between colloidal silica and colloidal silicates?
Potassium, sodium and lithium silicates attach to a carrying agent, salt. Colloidal silica does not. The salt is stripped away from the silicate to create the ability for the silica nano particles to build into chains.
Most Potassium, sodium and lithium silicates will react faster than a colloidal silica dispersion and are thus not capable of penetrating as deep into a concrete matrix. As the silicates reaction is more at the surface due to their quick reaction and creation of hardened CSH gel they are usually applied as densifying agents.
Markham Global Aquron surface applied products have been measured to depts between 20mm and 200mm into the concrete matrix depending on time, the pore structure and connectivity in the hardened concrete.