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Salt-Bloc Chloride Barrier


Salt-Bloc Chloride Barrier DOCUMENTS & DOWNLOADS


Diedrich Salt-Bloc is an all-purpose, deeply penetrating siloxane water repellent and chloride barrier for concrete and pavers.

  • Blocks the absorption of chloride ions from de-icing salts into concrete, brick and concrete paver sidewalks and driveways.
  • Protects against the intrusion of moisture causing efflorescence, leaching, mildew, atmospheric staining, and freeze/thaw spalling
  • Protects against chemical attack of chloride salts to reduce rebar and wire mesh corrosions
  • Salt-Bloc is resistant to the detrimental effects of acid rain and carbon buildups
  • Ideal for use on horizontal surfaces, and may also be used on retaining walls, bridge pilings and other vertical concrete applications
  • Salt-Bloc protects against deep-seated stains caused by mud splashes and other waterborne contaminants
  • It is highly effective in coastal areas in protecting surfaces from airborne salts


  • May NOT be suitable for some surfaces - gypsum plaster, synthetic resin paints and other non-masonry surfaces
  • It is NOT recommended to paint over surfaces treated with Salt-Bloc
  • Do NOT use on surfaces subject to constant water spray (i.e., car washes, water fountains)

SIZES: 1, 5 & 55 Gallons

Salt-Bloc Chloride Barrier Application

  • Apply with a dense, soft masonry brush, roller, or low pressure (40-50 psi) airless sprayer at full strength (do not dilute).
  • Apply an initial mist layer to break surface tension then follow up with a second flood coat.
  • On horizontal surfaces take care to apply enough product to keep wet for a few minutes, while brooming out any puddles.
  • Apply enough product on vertical surfaces to allow for a 6” to 8” run-down working bottom to top.
  • Two wet on wet applications are required.
  • For detailed instructions, download the Technical Data Sheet for this product
  • Coverage Rates
    for Salt-Bloc Chloride Barrier
  • Project Materials/Condition Coverage
    Clay Brick/Pavers 100-150 sq. ft. per gal.
    Cement Brick Pavers 100-150 sq. ft. per gal.
    Pre-cast & Steel Troweled Smooth Concrete 125-175 sq. ft./gal.
    Exposed Aggregate Smooth Concrete 100-150 sq. ft. per gal.

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