About the F9 Efflorescence & Calcium Remover This breakthrough in the restoration and cleaning industry is a user-friendly, full 31.45% strength muriatic acid replacement that works better with less harmful effects. Quickly remove efflorescence, calcium, calcium carbonate, and hard water stains on concrete, masonry, stucco, shingles, glass, synthetic stone, anodized aluminum, unpolished marble, and more. It can be used to etch concrete at stronger ratios or as a general cleaner at diluted ratios. This product combines a buffered, pleasant-smelling acid along with excellent soaping capability. F9 Calcium and Efflorescence Remover gives the user the advantage of a full-strength product while greatly reducing corrosion and fuming, with 95% fewer fumes than full-strength HCL Acid, thereby improving the overall health and safety risk profile. This one gallon of F9 Efflorescence and Calcium Remover covers 200-400' of porous masonry and up to 1,200' of sealed or non-porous masonry. Application rates will vary depending on the amount of staining, the porosity of the substrate, and if the surface was sealed. When new and unopened, this product has a shelf life of up to two years. Once opened, that shelf life gets cut in half to approximately one year. How to Use F9 Efflorescence & Calcium Remover: Pre-clean the surface, if necessary. Mix the F9 EFFLO solution. Always add acid to water, NOT water to acid. Mist the surface with water so it is damp, but not puddling. Spray product on the surface, let it dwell for 20 seconds to 3 minutes. Scrub surface as necessary, let dwell for another 1-15 minutes. Analyze results, repeat steps 3-5 if necessary, and/or adjust dilution. PRODUCT HIGHLIGHTS: Full-strength product Reduces corrosion and fuming Available in 1-gallon jugs and a 55-gallon drum Shelf life of 2 years when new/unopened
