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.
We recommend the use of one of Presto's stone protective treatments to protect the newly restored surface for years:
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.
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:
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.
View All Products > Architectural Precast, Concrete, Brick & Block Restoration Products > Stone Restoration Products >