Concrete floor sealer
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Concrete sealers and coatings are intended provide protection against heavy traffic, abrasion, chemicals, and moisture exposure. They also can beautify the surface, simplify maintenance and improve skid resistance. Most also reduce pitting, cracks, and stains. In general, a concrete sealer has a penetrating formulation or a less viscous topical solution that seeps into the concrete or is suspended on the surface, while a concrete coating on the other hand sits on the surface of the concrete and builds up and protects through the layers of coatings.
- Silicates: Either a sodium, lithium, or potassium carrier that seep into the concrete, chemically react to form dense calcium silicate hydrate; no VOCs.
- Silane/Siloxanes: Water repellents that form a hydrophobic barrier to seals out moisture while chemically bonding with the substrate.
- Acrylics: Water-based or solvent-based decorative sealers that enhance the surface and repel water; UV stable; inexpensive; easy application; often need recoating in 3-5 years.
- Epoxies: Provides thicker coating with exceptional hardness and impact resistance; bonds well; usually two-part system with slow cure times; may yellow with UV exposure.
- Urethanes: Resilient coating often used for pedestrian traffic surface; fast cure time; moisture sensitive; may be used top of an epoxy for additional protection.
- Polyaspartics: High performing coating that is expensive and difficult to apply because of two-part system with short pot-life; UV stable; only 1 coat needed.
This table provides some commercial examples:
|Armor AR350||Foundation Armor||solvent based acrylic||Interior or exterior use; Wet look; non-yellowing, UV resistant||Two coats recommended; Use roller or sprayer; self-priming||recoat in 2-5 years||Website|
|Clear-Seal Acrylic Urethane||Rainguard||acrylic urethane (single component self-cross-linking)||Interior or exterior use; resistant to solvents, oil, gasoline and UV; low VOC (<50 g/L); water-based; low gloss||Recommends first coat of water-repellent on porous surfaces; Use brush, t-bar or pump sprayer; clean up with water||60 min recoat/ 24 hours to walk-on||5 year warranty||Website, SDS|
|Decra-Seal Natural||W.R.Meadows||water-based sealant||Interior or exterior use; can add stain, dyes or aggregate for decorative effects; Low VOC (<50 g/L); Water-repellant; matte finish||Industrial sprayer recommended; shelf life = 1 year; clean-up with soap and water||dries quickly; restrict walk-on for 12 hours, vehicle traffic for 24||Website, Chart, SDS|
|Floortex Polyaspartic Garage Floor Coating||Floortex||polyaspartic||Interior or exterior use; low VOC; easy to maintain, minimizes dust and dirt;||Expensive; Use roller or squeegee (don't make errors because it dries quickly)||1 hour to dry|
|Epoxyshield Basement Floor coating kit||Rust-oleum||epoxy||Formulated for indoor use||16 hours to dry||Website||=
|PS 101 Siliconate Multi-surface sealer||lithium-silicate densifier with silconate stain repellant||Interior or exterior use; ; water repellant, stain-proof|
|Industrial-Seal 117A||V-Seal||lithium-silicate densifier with silconate stain repellant||Interior or exterior use; no VOC ; waterproof, controls dust, allows deep penetration to chemically harden and fortify the substrate||Water-based material; Use roller of low-pressure sprayer; Use only 1 coat; shelf life = 1 year; clean-up with soap and water||Dry to touch in 1-3 hours; allow 12-24 hours||Website|
|RadonSeal||RadonSeal||lithium-silicate densifier with silconate stain repellant|
|Consolideck||lithium-silicate densifier with silconate stain repellant|
Synonyms and Related Terms
concrete floor sealant
Physical and Chemical Properties
Resources and Citations
* CorrosionPedia: https://www.corrosionpedia.com/4-types-of-concrete-floor-coatings-and-what-you-should-know-about-each/2/7031 Concrete Floor Coatings]