MasterProtect H 380 - A solvent based silane siloxane primer and penetrative water repellent protective treatment for concrete and masonry 


MasterProtect H 380 is an optimum concentration of reactive hydrophobic silane-siloxane in a hydrocarbon solvent carrier and provides a protective impregnating treatment. 

Where is MasterProtect H 380 applied?

  • Surface applied protection for in situ and precast concrete to prevent ingress of water and water borne salts.

  • Reducing efflorescence in masonry structures. 

What are the advantages of MasterProtect H 380?

  • Prevent ingress of water borne chlorides and sulphates.

  • Water vapour permeability unaffected; allows concrete to breathe.  Excellent penetrative / reactive action. 

  • Integral protection, cannot peel off or erode.

  • Protects surfaces from discoloration and pollution. 

  • Excellent water repellent characteristics.

  • Easy to use, cost effective. 

  • Simple spray application.

  • Single component, no mixing. 

  • No change in surface texture or appearance subject to satisfactory field trials.

  • Compatible with solvented surface coatings. 

Product information

Technical Data Sheet

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MasterProtect H 380_TDS

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