Concrete Solutions for architects, engineers and builders since 1974

StarSeal Assist

STARSEAL ASSIST is an evaporation retarder that is applied to fresh concrete during finishing to extend working time.

When properly applied, StarSeal Assist forms a thin, continuous monomolecular film that reduces early moisture evaporation between the various placing and finishing operations, a major cause of plastic shrinkage cracking.


  • Helps prevent plastic shrinkage cracking
  • Holds in surface moisture reducing evaporation rate
  • Extends finishing time
  • Minimizes rapid drying due to high wind, direct sunlight and high temperatures
  • Economical concentrate
  • Easy to use, just mix with water
  • DOT approved
  • Dyed yellow as visual application aid


Gurad/Film Forming Sealers

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