Stone Restore HD (Heavy Duty) is a concentrated stone restoration cleaner that removes stubborn mineral stains from all types of stone material such as concrete, precast, GFRC, cast stone, silica reinforced concrete, brick, block, mortars and even limestone and marble stones when diluted to 5-10% concentrations. This is a highly effective preparatory product for use previous to the application of stone sealers especially silicone sealers such as Elasticone and Leach Stop. This product will remove rust stains, efflorescence, red clay stains,
This product is an alternative to straight muriatic acid. It contains a combination of environmentally friendly surfactants, builders, solvents and acids, which are developed for cleaning stone surfaces of all types. This product removes a thin layer of substrate at a molecular level in order to remove stains caused by rust, minerals, oxidation, corroding metals and more.
We recommend the use of one of Presto's stone protective treatments to protect the newly restored surface for years:
Protect unintended surfaces from contact, including traffic and pedestrian areas below the project, electric tools, wood, furniture, fixtures and plants. Always test in a small, inconspicuous area prior to use.
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. Start at the bottom and work the product upward, spreading an even coat on the surface. Keep area moistened with Stone Restore HD to loosen the soil. Immediately rinse any 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, rinse with 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:
Use as directed. Stone Restore HD may cause discoloration on stone surfaces or affect adhesion of water repellants if used incorrectly. Never let this product dry on the surface. May damage limestone or travertine surfaces when used undiluted.
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.
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