MasterKure HD 300WB is a magnesium fluorosilicate concrete hardener and dustproofer that bonds chemically with the concrete to strengthen and harden floors that are porous, readily absorptive, and only moderately hard. 

Product Features

  • Hardens and densifies concrete floors to reduce absorption and prolong service life

  • 100% reactive with the free lime in concrete to produce a dense, abrasion-resistant yet breathable surface

  • Tightly binds together the cement, sand, and aggregate for improved chemical resistance

  • Non-film forming, resulting in reduced cleaning and maintenance costs

  • Compatible with most resilient tile adhesives 


  • Interior and exterior

  • Floors requiring a hard, dense, chemical- resistant finish

  • Floors subject to heavy traffic and abrasion

  • Floors that must resist penetration of contaminants 


  • Concrete

  • Terrazzo (non-resinous)