STAR CLEAN® is a sulfamic acid based product developed to safely clean cement grout residue from ceramic or quarry tile.
Areas of Use STAR CLEAN can be used as a cement residue cleanser over masonry surfaces, quarry tiles, vitreous pavers and ceramic tiles. When mixed with warm, potable water, itproduces a non-volatile, odorless, acidic solution that will not harm tile, grout joints or pigmented masonry surfaces. Some ceramic and high glossed tile will etch when in contact with acid, therefore, it is recommended that a small area is tested before full use. LimitationsUser must determine suitability of this product in any given application. Certain glazed ceramic tile or highlyporous terra cotta tile will not tolerate any form of acid.Recommended for professional use only. Test small areabefore full use.Preparatory WorkAllow grout to cure sufficiently (minimum of 10 days). Saturate the grout joint with water before applying STARCLEANsolution.MixingMix slowly to avoid inhaling fine particle matter. Use 1 to 2 pounds (453.6 g to 907 g) STA RCLEANper 5 gallons (18.9 L) of cold water.
Mop the area to be cleaned with water, apply above solution over tile and let stand for 2 – 3 minutes. Scrub with a stiff brush or white nylon pad in a circular motion until the grout residue is removed. Do not leave on tile for more than 10 minutes. A second application may be required in latex grout installations. Be sure to rinse the resultant acid sludge thoroughly from the tile surface.