A concentrated sealant that reacts with both old and new concrete surfaces to bind up the water-soluble minerals that produce efflorescence. Pair it with MasonryGuard to resist moisture seepage.
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  • Corrosion, Abrasion and Chemical Resistant.
  • Permanently reacts with concrete to resist efflorescence
  • Hardens concrete.
  • Minimizes dusting, spalling and hairline cracking
  • Water-based and non-flammable

Product Info

EnviroSeal is a concentrated, low-cost sealant for both older and new concrete surfaces. When applied to concrete or masonry, it reacts with the calcium in concrete to increase moisture resistance, concrete hardness and chemical resistance. When used prior to MasonryGuard, the two-part system prevents efflorescence and increases the service life of the coating.


All cementitious surfaces especially in unconditioned and moisture prone areas such as, basements, crawl spaces and exteriors where efflorescence is common.


EnviroSeal is used to protect and seal above and below-grade masonry construction materials including but not limited to poured concrete, pre-formed concrete and the mortar joints between both brick and concrete block. Other surfaces include poured subfloors, piers, structural poured and block formed walls.


Consult SDS for details


EnviroSeal is formulated to be diluted.
It dilutes at a rate of 3-parts water to 1-part EnviroSeal concentrate. The solution may be applied with a brush, squeegee, sprayer (power or manual) or scrubbing machine to obtain an even coverage and penetration. Three to four light, penetrating coats are recommended. After each coat is applied, allow EnviroSeal to penetrate. Complete drying is unnecessary. Any excess EnviroSeal should be removed between coats. New concrete should be properly cured for a minimum of seven days before EnviroSeal is applied.

Coverage Rate

Each light coat will yield 300-400 ft2 of coverage. Once all coats (3-4) are applied, expect a final coverage rate of 80-100 ft2 per ready-to-use gallon. Coverage may vary due to surface texture, porosity, age and application method. This does not include loss from over-spray or over-use.

Shelf Life

24 months

Online Ordering Available

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