MasterProtect hB 400 is a water-based, high-build, 100% acrylic waterproof coating for above-grade concrete, masonry, stucco and EIFS. 

Product Highlights

  • Available in a broad range of colors and textures for design versatility

  • Resists wind-driven rain, helps prevent water penetration into the substrate

  • Breathable to allow water vapor to escape

  • Excellent adhesion, bonds securely to substrate for long-term durability

  • UV resistance provides excellent color retention for a long lasting attractive finish

  • Excellent hiding power

  • Textured formulations help improve aesthetics of irregular substrates

  • Effective carbon dioxide diffusion barrier, protects embedded steel from corrosion

  • Freeze/thaw resistant, suitable for cold climates

  • Low VOC content for broad compliance across all regions

  • Master Painters Institute (MPI) approved 


  • Exterior

  • Vertical and overhead surfaces

  • Above-grade

  • Protecting and waterproofing 


  • Concrete

  • Masonry

  • Cement plaster Stucco

  • EIFS

  • Existing Coatings