Diamond Polishing is a process that turns a structural foundational concrete slab into a functional, high performance and easy to clean floor. The concrete surface is sealed mechanically via diamond polishing, eliminating dusting, preventing chemical or dirt intrusion and making the floor easy to clean and maintain.
Diamond Polishing is a relatively new practice (1997) using natural stone polishing techniques from Europe to grind and polish a concrete slab floor (new or existing) to a high sheen, similar to marble or granite polishing. This process also involves hardening the concrete surface using silicates or related compounds. Large, heavy, state-of-the-art walk-behind machines with rotating diamond-abrasive heads remove the surface layer of the concrete and achieve a fine polish. Progressively finer diamond- abrasives are used to refine and polish the concrete surface. At Pacific Decorative Concrete, Inc., we perform all of our grinding and polishing dry, that is, without the use of water. We use sophisticated dust collection systems that collect virtually all dust during the polishing process.
During the polishing process, a sodium, lithium, or potassium silicate is applied to the floor to densify, or harden, the concrete. The solution is absorbed into the concrete surface filling the pores. Chemically, the silicate reacts with the calcium hydroxide molecules which occur naturally in concrete to produce calcium silicate hydrate. After the silicate infuses into the concrete, it crystallizes in place. Then the polishing continues.
The end result is a chemically hardened concrete surface that can be dyed or not, that has been mechanically refined and sealed using diamond abrasives. There is no topical chemical sealer or wax of any kind. Because there is no sealer or wax, the polished concrete never needs to be resealed or waxed. There is nothing to bubble, turn white, flake off, wear off or turn yellow.
"The crew at PDC did a fantastic job installing beautiful polished concrete floors for us at Santa Clara High
School! The school is extremely happy. Check out the pictures!"
– Leo Guiteriez, CEO Dolan Concrete