Why do professional cleaners prefer Bruce’s GSR? Simply because of outstanding performance. The natural organic mineral abrasives found in these products meet exacting criteria for hardness, crystalline shape, and particle size required to quickly cut away mineral deposits and other contaminants. These minerals combined with eco-friendly, cleaning agents and protectants give you a sparkling clean, protected surface with minimum effort. The ease of use and outstanding performance of GSR is unbeatable.
Is GSR an acid? No. GSR is an acid-free, biodegradable and safe for you and the environment.
What is the best way to apply GSR on windows? Mist a cotton cloth or scrub pad with water, apply a quarter size amount of GSR and scrub the spotted area in a circular motion. Allow the product to dry completely and polish off with a soft cotton cloth.
What is the best way to apply GSR on shower doors? To restore large areas of glass we suggest using a handheld orbital sander. See our water spot removal video for further instructions.
I am extremely sensitive to harsh chemicals. Is GSR safe to use in an enclosed area like my shower? Yes, GSR is an acid-free, mineral based cleaner that does not emit any harsh fumes.
Can I use GSR to remove oxidation from my auto paint? We do not recommend using GSR on painted surfaces. Although it will remove the hard water stains, it may also cause micro-scratching on the surface.
What can I do if my GSR dries out? Simply add a small amount of water and mix.
Why is GSR different shades of brown? Because GSR is a mineral based cleaner the color may vary but this will never change the effectiveness of the cleaning power.
What causes hard water stains? Hard water stains are caused by an accumulation of Calcium Carbonate which leaves behind the white mineral build-up.
On what surfaces can I use Bruce's GSR? Glass, chrome, ceramic tile and porcelain. Like home windows, shower doors, auto glass, aquariums, sinks and toilets. For granite, marble, stainless steel and more we recommend EZ Clean soft scrub & polish.
Does Bruce's GSR really work at removing hard water stains? Yes, GSR Heavy Duty Brown is formulated to remove the toughest water stains. Be sure to follow proper instructions for removing tough water stain damage.
Can I use GSR on fiberglass or plastic? We do not recommend using GSR on plastic surfaces. Although it will remove the hard water stains, it may also cause micro-scratching on the surface.
Do you have anything that will seal the glass after using GSR? Yes, Forever Clear glass sealant can be applied after using GSR to maintain beautifully clear glass. Protect your glass for years to come with GSR and Forever Clear.
