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MasterLife® SF 100 (Formerly Rheomac SF 100) 

MasterLife SF 100 dry, densified silica fume mineral admixture is formulated to produce extremely strong, durable concrete. MasterLife SF 100 silica fume admixture meets the requirements of ASTM C 1240, Standard Specification for Silica Fume used in cementious mixtures.


  • Added cohesiveness
  • Reduced bleeding
  • Enhanced performance


  • Increased concrete service life
  • Improved strength
  • Increased modulus of elasticity
  • Reduced permeability thereby increasing durability
  • Increased resistance to sulfate attack
  • Increased resistance to alkali-silica reactivity


U.S. and Canadian Product Information:

Rheomac SF 100 became MasterLife SF 100 under the Master Builders Solutions brand, effective January 15, 2014.
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