There areĀ a few different types of penetrating concrete sealers but the most popular types of penetrating sealers are concrete sealers and water repellents.
Concrete Sealers
Concrete sealers, like the Armor S2000 and VSeal, are used to reduce the movement of water and moisture through a concrete surface. They do not change the look of the concrete and do not leave behind a coating. Further, they do not cause water to bead off the surface. They are used strictly to reduce movement of water and moisture through a substrate.
Concrete Water Repellents
Concrete water repellents, like the DOT approved Armor SX5000, or the Prosoco PD, are used to stop water absorption on the surface and stop concrete dusting. They do not change the look of the concrete and do not leave behind a coating. They cause water and other liquids to bead off the surface.
Best Concrete Sealer
The best type of concrete sealer to use will be dependent on the application. In most cases, a basement application will require the used of a concrete sealer, like the Armor S2000 or Vseal 102 are best. For exterior concrete applications, or for applications with brick, the Armor SX5000 or Prosoco PD are best.