Concrete Solutions for architects, engineers and builders since 1974

StarSeal EF Weather Seal

STARSEAL EF WEATHER SEAL is a value priced water base breathable clear water repellent sealer that penetrates into new (14 day minimum) or existing concrete and masonry surfaces. StarSeal EF Weather Seal prevents the penetration of water, salts, and deicing chemicals, which often result in efflorescence, mildew growth, corrosion, scaling, spalling, surface erosion and other costly damage to concrete and masonry surfaces. Surfaces treated with StarSeal EF Weather Seal have a totally natural appearance.

Ideal for commercial and institutional building fascades, balconies, walkways, driveways and parking decks.


  • Extends the life of concrete and masonry
  • Better long term protection against salt corrosion, deicing chemicals, mildew, water, wind driven rain, airborne contaminants, surface spalling from freeze/thaw cycles and other severe weather conditions
  • Breathable – Prevents damage from within by maintaining vapor permeability of substrate
  • Superior water repellency
  • Can be applied to damp surfaces
  • Suitable for alkaline concrete surfaces
  • Water base – safe to use – low odor
  • Does not alter natural surface texture or appearance
  • Reduces on-going maintenance and repair costs
  • Keeps surface cleaner


Gurad/Film Forming Sealers

Penetrating Sealer and Concrete Curing in one easy-to-use product.