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BEHR® DRYPLUS® Masonry Waterproofer is a premium interior/exterior paint designed for waterproofing porous above or below grade concrete and masonry surfaces. It is designed to form a strong waterproof barrier to stop water infiltration while providing a smooth, decorative finish.

Technical Data Sheets

Safety Data Sheets


Flat Finish

Best For Use In

Use on properly prepared interior and exterior CMU (concrete block, cinder block, split-faced block) walls.


7-12 m2 per 3.79 L depending on the application method and substrate porosity. It does not include the loss of material from spraying.

  • Two paint rollers, two coat icon.

    2 Coats Required
    for Optimal Durability

  • Paint coverage icon.

    Spread Rate :
    Rough 7-9m2
    Smooth 9-12m2

  • Clock icon

    Dry Time:
    1 HR Dry to Touch
    4 HR Recoat

  • Soap and water cleaning a paint brush icon

    Soap & Water

Walls subject to hydrostatic pressure. Ideal for above or below grade Basement Walls, Retaining Walls, Garage Walls, Masonry Walls, Cinder Blocks, Stucco, Brick, Foundations and Landscape Walls. Apply to dry or slightly damp surfaces. Not for use on floors or walls with active water leaks.


Proper surface preparation is required

  • New or Unpainted Surfaces: New concrete must cure for a minimum of 30 days. Test for loose, flaking concrete by pressing a piece of masking or cellophane tape at various places, then pull it off with an abrupt action. If the tape does not pull the concrete from the surface, it can be painted. If the existing concrete is removed, the loose concrete should be removed down to a sound substrate.
  • For below grade application: All holes or cracks must be properly patched with a fast setting hydraulic cement.
  • For above grade application: Remove mildew stains with a mildew stain removing product. All surfaces must be clean and free of dirt, dust, efflorescence and oil. Follow all label instructions.
  • Previously Painted Surfaces: BEHR DryPlus No. 875 provides best results when applied to bare or untreated surfaces. PREVIOUSLY PAINTED SURFACES IN GOOD, REPAINTABLE CONDITION MAY BE PAINTED WITH BEHR PREMIUM NO. 875, HOWEVER, BEHR WILL NOT GUARANTEE THE RESULTS. Test for loose, flaking paint by pressing a piece of masking or cellophane tape at various places, then pull it off with an abrupt action. If the tape does not pull the paint from the surface, it can be painted. If the existing paint is removed, the loose paint should be removed down to a sound substrate by wire brushing or sanding. For Interior or Exterior application; remove deteriorated coating prior to application. Follow all preparation instructions under “New or Unpainted Surfaces” above.

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  • Stir well before use.
  • Do not thin product.
  • Use with adequate ventilation.
  • Use product when air and surface temperature are 10-32˚C. Apply to dry or slightly damp masonry walls. Wipe off any visible moisture with a dry cloth before painting.
  • Apply with a 13-19 mm nap roller, 4 cm nylon/polyester brush or an airless sprayer @ 155-225 kg/cm2 (2,200-3,200 lbs/in²) PSI using a .023 -.025 spray tip.
  • Two coats minimum are required: First Coat: Using a brush or roller, work the waterproofer onto the surface until any all pores or voids are covered. Second Coat: Using a brush or roller, cover the entire surface. Properly fill any voids left after the first coat. Additional spot application may be needed depending on the porosity of the surface.
  • Important: If leaking is still present after two coats, it indicates that voids or pinholes are still open. Re-apply product to these areas. DO NOT thin product or apply at a greater spread rate.

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Dry Time

  • Low temperatures or high humidity conditions will affect drying time.
  • Full cure should be reached in 7-14 days.

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  • Properly dispose of all soiled rags.
  • Protect unused product from freezing.
  • For disposal of empty containers and unused product contact your household refuse collection service.

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To consult with a Behr Certified Coatings Professional, call 1-800-661-1591.

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Behr Process Corporation warrants to you, the original consumer purchaser, the performance of this product as described on this label for 10 years on vertical surfaces, from the date of purchase. THIS WARRANTY IS NOT VALID WHEN THE PRODUCT IS NOT PROPERLY APPLIED TO A PROPERLY PREPARED, PREVIOUSLY UNCOATED AND PREVIOUSLY UNTREATED VERTICAL SURFACE OR CARED FOR IN ACCORDANCE WITH THE LABEL DIRECTIONS. Colour fading and chalking will occur naturally over time. This warranty is not transferable. If this product is found not to perform as specified on the label during the warranty period, Behr Process Corporation will, at its option and upon presentation of proof-of-purchase (the original receipt), either furnish an equivalent amount of new product or refund the original purchase price of this product to you. The clause of limitation of liability which follows is inapplicable in Québec. THIS WARRANTY EXCLUDES (1) LABOUR AND COSTS OF LABOUR FOR THE APPLICATION OR REMOVAL OF ANY PRODUCT, AND (2) ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON BREACH OF EXPRESS OR IMPLIED WARRANTY, NEGLIGENCE, STRICT LIABILITY OR ANY OTHER LEGAL THEORY. The above provisions are not intended to operate where prohibited by law. This limited warranty is the only warranty provided by Behr Process Corporation unless extended by a provincial consumer statute. To obtain warranty service, call 1-800-661-1591, or contact Behr Process Corporation at #110 – 600 Barlow Square SE, Calgary, AB, T2C 5T7. Behr Process Corporation reserves the right to inspect any and all application of the product prior to processing your claim made under this warranty.

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