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How To Apply MasterProtect® H 177 Sealer

MasterProtect H 177 silane/siloxane water-repellent sealer packaged in a 5 gallon pail
MasterProtect H 177 Silane/Siloxane, Water-Repellent Sealer packaged in 5 gallon pail

Watch how to apply MasterProtect H 177 high-performance, breathable, water-based, silane/siloxane water-repellent sealer (Video Transcript). Then learn more about the materials, tools and accessories required to do the job safely and efficiently.

MasterProtect H 177 Sealer Application Video Transcript

  • Mix material thoroughly before and during the application
  • Ensure substrate is structurally sound, fully cured, dry and clean
  • Open spout on top of pail, remove tab inside spout
  • Pour into low-pressure, non-atomizing sprayer
  • Flood the surface, starting at the bottom and moving up
  • Achieve a controlled rundown of 8-10 inches
  • Refer to the MasterProtect H 177 technical data guide for more information.

Sealer Application Materials, Tools and Accessories

Materials, Tools and Accessories – Shown

  • Protective Gloves – 4-mil nitrile, disposable glove
  • Protective Clothing – Long-sleeve sweatshirt
  • MasterProtect H 177 Sealer – Designed for dense, vertical masonry surfaces such as hard-burnt brick
  • Low-Pressure, Non-Atomizing Sprayer.

Precautionary Accessories – Not Shown

Refer to the MasterProtect H 177 Safety Data Sheet (SDS) for more information.

  • Eye Protection
  • Face Protection
  • Respiratory Protection – In case of inadequate ventilation.


Last Modified: July 15, 2021