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Prosoco LS/CS 5 Gallon

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Product Overview

LS/CS is a penetrating silicate treatment that hardens, densifies and dustproofs concrete flatwork. Unlike conventional hardeners, it does not have to be scrubbed or flushed. Simply spray LS/CS on the surface and spread it out with a microfiber pad. LS/CS will not trigger or contribute to surface ASR (alkali silicate reaction) and will dustproof freshly troweled “green” concrete, or existing floors of any age.


  • Easy, one step application. No scrubbing. No flushing. No caustic wastewater
  • Penetrates and reacts quickly to produce better initial hardness
  • Renders floors of any age dustproof
  • Tested and conforms to California Collaborative for High Performance School Indoor Air Quality standards. Use can contribute to LEED® for Schools points (EQ Credit 4)
  • Performance of treated floors improves with traffic and maintenance
  • Improves performance, appearance and light reflectance of new or old concrete
  • Reduces application time and costs of burnishing and diamond polishing operations
  • Will not contribute to surface crazing. Combats surface ASR
  • Will not absorb water or contribute to floor sweating
  • Gloss and hardness do not reduce slip resistance
  • Breathable and UV stable. Will not yellow, discolor, peel or flake
  • Non-flammable. Non-toxic. Low odor
  • Cures quickly. Most floors can be opened to traffic within one hour of treatment
  • Treated surfaces are easy to maintain and require no waxing

Features & Specifications

Surfaces Concrete
Product Size 5 Gallon
Application Densifier, Dustproofer
Coverage 300-800 Square Feet Per Gallon