weber primer 401

Acrylic Waterproofing Primer-Weber Primer 401

weber primer 401 is a high-performance acrylic based waterproofing primer with excellent bonding agent properties with the substrate, like gypsum board, cementitious board, new and old concrete. It yields into overall strength properties of a waterproofing coating system.


Floor, Wall


  • 20 L Jerrycan

To know before applying

  • The surface for bonding treatment must be thoroughly cleaned of all laitance, loose material, oil, greases etc.
  • Pre-wet the surface with water adequately to saturate surface dry condition. Ensure that there is no standing water
  • After saturating the surface apply 1-2 coat of weber primer 401 with brush mixed with water in 1:1 ratio
  • Allow the weber primer 401 to dry for 30 -60 mins depending upon weather conditions

Sorry, we don't have consumption calculator for this product. Kindly contact our call center representative for more details. 


Documentation and brochures

Features and benefits

  • Increase adhesion between substrate and waterproofing material.
  • Provide high durability of waterproofing coating even in continuous contact with water.
  • Can be easily applied by a flat brush.
  • Non-toxic.
  • Can be used for both internal as well as external applications.
  • Application on the various surface.