Concentrated alkaline degreaser for tile, stone, and hard surfaces. Tenax Booster Alk Concentrated is a multipurpose alkaline cleaner that can be diluted to the required strength for general tile and hard surface cleaning, or used full-strength for targeted stain removal on specific materials. Effective on organic dirt, rubber marks, wax, and epoxy residue across a broad range of surfaces including ceramic, porcelain, unpolished stone, granite, and cement. What It Removes Organic dirt and grime Rubber marks Wax residues Epoxy residue Stubborn discolorations on tile and hard surfaces Key Features Concentrated formula — dilute to required strength for general cleaning or use full-strength for stain removal Broad surface compatibility — ceramic, porcelain, unpolished stone, granite, cement, PVC, glazed ceramic Effective on epoxy residue — useful for post-installation cleanup 12-month shelf life Booster Alk Concentrated vs. Booster Alk Easy — Which to Choose Booster Alk Concentrated (this product) — concentrated for dilution; broader surface compatibility; 1-liter size; for general tile and hard surface cleaning and targeted stain removal Booster Alk Easy — ready-to-use; formulated specifically for quartz and engineered stone; no mixing required; 750ml and 200-liter sizes Compatible Surfaces Ceramic and porcelain tile Unpolished stone and unpolished marble Granite Glazed ceramic Cement and non-glossy cement agglomerates PVC Caution: Do not use on waxed or glossy surfaces; test on a small hidden area first Dilution Guide 1:20 — standard ratio for general tile and surface cleaning 1:10 — for tougher dirt and grime 1:5 — for stubborn dirt Undiluted — for targeted stain removal on porcelain stoneware and epoxy residue How to Use General tile cleaning: Mix at the appropriate dilution ratio Apply to the surface and leave for 5–10 minutes Work with a brush while wearing hand protection Rinse thoroughly to remove all residue Porcelain stoneware stain removal: Apply undiluted with a small brush Allow to sit for approximately 10 minutes; scrub and rinse thoroughly For stubborn stains or epoxy residue, cover with plastic and leave for several hours Works Well With Booster Alk Easy — ready-to-use alkaline cleaner for quartz and engineered stone BrioAction 3 Professional Stain Remover — for mold, algae, and atmospheric buildup on stone and masonry Sealer & Wax Remover — for stripping old sealers and wax treatments Zero Purple Liquid Stain Remover — for deep stain removal on absorbent natural stone ProToolHaus – Your Certified Tenax USA Distributor When you buy from ProToolHaus, you’re ordering from a certified distributor of Tenax USA. We carry the full lineup and stand behind every product with expert guidance, fast fulfillment, and the kind of support that only comes from working in the stone industry every day.