Dr. KlarX™ HD Concrete Cleaner – Heavy-Duty Solution for Deep Concrete Soils and Stains – (5-Gallon Concentrate)

Product Info

Dr. KlarX™ HD Concrete Cleaner is a powerful cleaner with minimum foaming properties allowing for an easier rinse.  It will remove mold, mildew, heavy deposits of oxidized waxes and polymers, thick layers of stubborn soils, greases and baked on deposits of carbon.  Ideal for removal of soot from fire damage, resins, gums, oils, inks, dyes, and soap scum.


Where to Use

Recommended for exterior use on concrete, brick, masonry, pavestone, flagstone, and pre-cast concrete.


Primary Applications

Residential, Commercial, and Industrial.


Supplies Needed

  • KlarX™ HD Concrete Cleaner
  • Airless spray pump
  • Masonry nylon brush
  • Water hose or pressure washer
  • Plastic film to protect adjacent non-masonry surfaces
  • Auto scrubber if cleaning indoors
  • Ventilator if cleaning indoors


Features & Benefits

  • Biodegradable and eco-friendly
  • No hydrocarbons or solvents
  • Non-hazardous
  • Ozone Safe and Full VOC Compliance
  • Corrects color and texture irregularities
  • Economical
  • Removes Oil, Grease, Wax, and Stains from Concrete
  • Removes smoke, rust, and efflorescence


Use Instructions

Exterior Cleaning

  1. Test in inconspicuous area to confirm cleaning method being implemented.
  2. Protect non-masonry surfaces with poly film.
  3. Do not mix with other chemicals.
  4. Prewet surface.
  5. Apply diluted cleaner onto the surface with an airless spray pump or any sprayer to wet the surface.
  6. Scrub the surface with a soft, fibered masonry nylon brush.
  7. Let set for 2‒3 minutes. Do not let the cleaning solution dry on the concrete.
  8. Thoroughly rinse off with water or pressure washing equipment using 100‒200 psi.
    1. Always use caution when using a pressure washer. Take care not to damage the underlying surface.
    2. To avoid streaking, keep the lower area wet at all times.
  9. Repeat the above steps until stains are removed.



  1. For interior cleaning:
    1. Provide adequate ventilation for air circulation.
    2. Protect non-cleaning surface.


Recommended Dilution Ratios:

  • Brick-Concrete-Stone: 1 part cleaner with 2 parts water
  • Masonry: 1 part cleaner with 5 parts water
  • Tile Roofs: 1 part cleaner with 6 parts water
  • Industrial Equipment: 1 part cleaner with 5 parts water
  • Aluminum & Vinyl Siding: 1 part cleaner with 4 parts water


Adjust dilution ratios based on the level of buildup on surfaces.


Storage, Handling & Shelf Life

  • Keep the container closed when not in use.
  • Store out of direct sunlight. Keep from Freezing.
  • Avoid temperatures
    > 100 °F or < 40 °F.
  • Product can be stored up to 12 months.
  • If the product is stored for a long time, lightly agitate, or shake well before use.



Keep out of reach of children.

Refer to SDS prior to use.

Keep product away from skin and eyes.

Do not swallow or ingest this product.

Wear rubber gloves and safety goggles while working with this product.

Remove contaminated clothing and DO NOT wear again until thoroughly cleaned.

Wash hands thoroughly with soap and water after handling.


First Aid

EYES: Flush thoroughly with water.  If eye irritation persists, get medical attention.

SKIN: Flood the surface with water, using soap or baking soda freely. If burns appear, cover them with moist magnesia or baking soda.

INGESTION: Call a physician immediately; drink a teaspoon or more of milk of magnesia or baking soda.


Quick Specs

Item # NEHDC4Z1GB (4ea – 1Gal Containers)

Item # NEHDC1Z5GP (1ea – 5Gal Pail)

Item # NEHDC155GD (1ea – 55Gal Drum)

Item # NEHDC275GT (1ea – 275Gal Tote)


Appearance: Clear to Milky Liquid
pH: 4.5-5.5
Flash Point: Same as Water
Stability: Stable




Each order of Dr. KlarX™ HD Concrete Cleaner Concentrate includes – a 5-gallon pail.

To learn more about these and any other products, other sizes, and discounts for bulk orders, please contact us at 888.637.6760 ext. 165.

Additional information

Weight 43.9 lbs
Dimensions 13 × 13 × 16 in