Types of Concrete Driveway Sealer
Types of driveway sealers
Other types of topical sealers for driveways are polyurethanes, epoxies and penetrating resins. Generally, epoxy or polyurethane sealers cost considerably more than acrylics and they tend to be higher build, and thus more slippery. They also don't allow for moisture vapor to move out of the concrete. It's important that sealers used on exterior concrete allow the passage of both air and moisture. If a sealer does not allow for this movement, especially moisture, white hazing or fogging can occur between the sealer and concrete (see Preventing Moisture Problems).
Penetrating sealers are made of specialty resins (silicones, siloxanes and silanes) that penetrate into the concrete and form a chemical barrier to water, oil and other common contaminants.
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