DRYLOK® Extreme Masonry Waterproofer – 3.8 Litre


  • Prevents water leaking through existing masonry
  • Protects new construction against water ingress and damage

DRYLOK® Extreme Masonry Waterproofer’s proprietary formula is GUARANTEED to stop water.

Unlike ordinary paint that simply adheres to a surface and can be forced off by incoming water pressure, DRYLOK® Extreme Masonry Waterproofer actually penetrates the pores in that surface, bonding to the masonry and creating an impenetrable barrier.


In stock (can be backordered)


Waterproof interior, exterior, above or below grade walls including basements, retaining walls, and bare concrete swimming pools, foundations, and more

  • GUARANTEED to stop water – withstands 15 pounds of hydrostatic pressure (PSI) equivalent to a wall of water 33 feet high
  • Fully transferrable 15 Year Warranty
  • Withstands cat 4 hurricane winds
  • Helps protect against radon gas penetration by reducing vapour transfer
  • Green Wise® Certified
  • Low-odour formula complies with all current VOC requirements
  • Breathable film will not trap moisture in the masonry
  • Easy cleanup with warm, soapy water

Product Features :

  • Tintable, bright white, smooth finish formula features Flexible Encapsulated Polymers for the ultimate in waterproof protection
    Incorporation of a green biocide helps the dry paint film resist mildew growth
  • Size – 3.8 litre
  • Coverage : 1.8-2.5 square metres per litre
  • No pre-mixing or pre-wetting
  • Application tools : brush or roller (preferred for first coat), sprayer
  • Dry Time : 1-2 hours
  • Coats : minimum of 2 coats for Warranty Coverage to apply
  • Recoat time : 3 hours
  • After 24 hours, DRYLOK® will accept a decorative topcoat using good quality latex paint


Masonry walls, Brick, Stucco, Cinder & concrete blocks, Poured concrete


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