Stone Restore CB2

Stone Restore? CB2 (Double-Strength Chlorine Bleach) effectively fights stains from microorganisms such as green and black algae and mold allowing them to be easily removed using water.


This product functions as double-strength chlorine bleach, which is not available at common retail outlets. This product also contains Presto’s proprietary blend of surfactants and degreasers to help loosen dirt and oils so that they may be cleaned away revealing a stain-free surface.


  • Fights stains caused by mold, mildew and red clay
  • Safe for brick and block
  • Quick bleaching action
  • Deep penetrating action
  • Safe on glass and anodized aluminum


Product is suitable for use on horizontal or vertical surfaces.?


2,000 to 20,000 feet per 5 gallon pail?depending on dilution rate.?


This product is designed for use on most types of stone. Special precautions are required when using this product to clean limestone, marble or travertine.


We recommend the use of one of Presto's stone protective treatments to protect the newly restored surface for years:
  • Leach Stop??– Mineral Leaching Mitigation Treatment?

  • Protect-A-Stone??– High-performance oil protection for stone surfaces

  • ReJuviSeal??– Rejuvenating oil protection for stone surfaces

Stone Restore CB2 Product Info Chart
Solvent Water Based
Flammable No
User Friendly No
Economically Efficient Yes
Environmentally Friendly No
Color Yellowish Green
Smell Similar to Bleach


Stone Restore CB2 should be?used at a dilution rate of at?least 3 to 1. For brick surfaces,?dilute 1 to 9 with water. For?concrete with stubborn stains,?start by using a 10 to 1 mix,?then dilute as needed.


Protect unintended surfaces?from contact, including traffic?and pedestrian areas below the?project, electric tools, fabrics,?furniture, fixtures and plants.?Always test in a small, inconspicuous?area prior to use. If product comes in contact with plant life, wash off leaves and soak root system well.?


Wet intended surface prior to?application. Have running?water available to keep the?surface damp. Apply an even?coat of cleaner using a low pressure?(40 psi max.),?chemical-resistant sprayer.?Keep area moistened with?Stone Restore CB2 to loosen?soil. Immediately rinse?unintended surfaces, such as?glass or frames.?

For deep stains, allow the?cleaner to penetrate the?substrate for 10-20 minutes,?but never allow surface to dry.?

After product has saturated?the stone, rinse using a?pressure washer and a white,?40-degree tip or a green, 25-?degree tip. Keep the tip as far?away from the surface as?possible. If a pressure washer?is not available, use a brush to?help loosen stubborn soils. For?best results, use heated,?deionized water.

Always rinse the area?thoroughly to ensure no?product is left behind. Multiple?applications may be required?for heavily soiled, porous or?absorbent surfaces, and should?be applied immediately after?the initial application. Follow?the same instructions for each?application.?

Situations including various?stone types or different?natured stains may require?multiple products. Presto’s?stone cleaning line includes:
  • Stone Restore? HD?For difficult to remove?mineral stains caused by?efflorescence, rusting, red?clay, iron and more?
  • ?Stone Restore? NC?For general cleaning of?sensitive stone surfaces that?require a neutral cleaner?
  • Stone Restore? A+?For heavy stains caused by?oil, grease, grime and?environmental pollution?
  • Stone Restore? CT?A multi-purpose stone?cleaner that removes a?variety of stains from all?types of stone materials?
  • Stone Restore? PS?For stubborn surface?contamination on all types?of polished stone


Stone Restore CB2 may cause?discoloration on some stone?surfaces or affect adhesion of?water repellants if used?incorrectly. Never let this?product dry on surface.?Do not mix this product with?any other chemicals.


The information provided by?Presto for the safe and?effective use of this product,?and all of our products, is?believed to be good and?accurate. However, due to the?many different possible?applications of this product,?careful considerations should?be made when selecting its?suitability for each surface.

The information provided?should never be substituted for?individual testing to ensure the?product’s compatibility with?each surface intended for use.?The purchaser shall assume all?responsibility for determining?the suitability of this product.?When used as intended, this?product will perform as stated.?No other warranty can be?made for this product, verbally?or written.

Presto warrants this product to?be free from defects. In the?event this product is found to?be defective, we will provide a?sufficient amount of product to?replace the defective product.


View our Stone Restoration Pictures Featuring projects that?utilized?our many products for?their?buildings restoration,?maintenance?or cleaning project.

After cleaning or sealing stone surfaces the glass windows and metal frames almost?always?need to be cleaned, and many time window spots and stains removed as well. View our glass and metal products that compliment our stone restoration and protection arsenal.



Minimum 6 Each 5 Gallon Pail For $703.00

Kim Jurica,
Jan 24, 2018, 9:26 AM
Justin McGarty,
May 19, 2012, 1:04 PM