MasterCast 121 - Multi-purpose adhesive, surface sealer, primer and bonding agent, admixture for mortar​ 

How does MasterCast 121 work?

MasterCast 121 is multi role bonding agent and admixture for cementitious systems. 

Where can MasterCast 121 be applied?

  • As a bonding agent for cement screeds and render, plaster and concrete.
  • As an admixture for mortar.
  • Light weight concrete with EPS Beads.

What are the advantages of MasterCast 121?

  • Numerous applications from one product. 
  • Economical and simple to use. 
  • Exceptional adhesive properties. 
  • Quick drying.


JRef - MasterCast 121

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MasterCast 121_TDS

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