1. Penetrates into the pores of the concrete and chemically bonds within the slab.
2. Creates a hydrophobic (water-repelling) barrier inside the concrete rather than forming a film on the surface.
3. Protects concrete from within without changing its natural appearance.
1. Intraseal: Because it penetrates, it won’t peel, flake, or wear off from foot traffic, UV exposure, or weather. Protection often lasts several years.
2. Topical Sealers: Form a surface film that can wear down, scratch, peel, or require re-application more frequently (typically every 1–3 years).
1. Intraseal: Allows vapor transmission (lets moisture escape), reducing risk of trapped moisture, efflorescence, or surface whitening.
2. Topical Sealers: Can trap moisture under the surface film, sometimes leading to blushing, peeling, or bubbling.
1. Intraseal: Low maintenance — concrete keeps its natural look, doesn’t need stripping/re-sealing cycles, and is easier to clean since liquids bead off.
2. Topical Sealers: Require reapplication and sometimes stripping before re-coating. Scuffs, scratches, and wear are more visible.
1. Intraseal: Invisible, keeps a natural matte finish with no color change (though some penetrating sealers can slightly enhance).
2. Topical Sealers: Can provide glossy or wet-look finishes and may darken/enhance color, but can also create slippery surfaces when wet.
1. Intraseal: Provides good resistance to water, salts, freeze-thaw damage, and some stains (oil, grease, etc.) by repelling liquids.
2. Topical Sealers: Can resist stains initially but wear off with abrasion, and chemical spills can degrade the film.
