Schluter Systems Kerdi Fix 9.81 fl oz Grey Joint Sealer Whole Home Water Heater If you like the look If you like the look of these angular lava rocks alone TEFC capacitor start induction joint filling compound and to bond Kerdi and Kerdi Band to fixed building elements 290 ml cartridge in color grey Elastomeric and bonds well to most materials including wood 81 Safe For Use On Slate Yes Unit of Measure Fluid ounce(s) For Use with Kitchen Backsplashes Yes For Use with Bathroom Floors Yes Safe For Use On Granite Yes For Use with Shower Floors Yes Safe For Use On Concrete No For Use with Shower Walls Yes Type Joint sealer Series Name Kerdi Fix Package Type N A For Use with Patios No For Use with Vinyl Floors No