Tenax Protex - 1 Quart (Now Proseal P) Proseal P Premium Natural Effect Stone Sealer Tenax Proseal P Premium Natural Effect Stone Sealer is one of the top premium sealers on the market today. Tenax Proseal P Premium Natural Effect Stone Sealer is suitable for the treatment of all types of stone. Tenax Proseal P Premium Natural Effect Stone Sealer works extremely well on smooth stones, such as Pietra Leccese, Pietra Vicenza, limestone, and similar stones for both indoor and outdoor. After the application a light increase of color can be seen but depends on the type of stone and where the product is applied. UV Stable. Features High Stain Protection Even On Very Porous Surfaces Impregnating No Hydrocarbons Ideal for Countertops Makes Countertop Maintenance & Restoration Easier Indoor & Outdoor Use 215-323 Sq Ft Coverage Per Liter DirectionsThis product must be evenly applied on a completely clean and dry surface. Spread Tenax Proseal P Premium Natural Effect Stone Sealer 1 Qt evenly with brush, sponge, cloth or spray gun until surface no longer absorbs product. After a few seconds buff with a clean cloth. Any excess of Tenax Proseal P Premium Natural Effect Stone Sealer 1 Qt creates superficial glossy and sticky films so any excess must be removed immediately after the application. Repeat twice after 10-15 minute intervals. Do not walk on floor for 24 hours. IMPORTANT: When using Tenax Proseal P Premium Natural Effect Stone Sealer 1 Qt for the first time we suggest testing on a small hidden area first. One liter of Proseal P Premium Natural Effect Stone Sealer 1 Qt treats approximately 108-162 sq. ft depending on the porosity of the stone.WARNING: Tenax Proseal P Premium Natural Effect Stone Sealer 1 Qt does not provide anti-etch protection on marble surfaces. Use of acidic substances such as wine, tomatoes, citrus, coffee, etc. will etch the surface by creating a chemical reaction with eh calcium carbonate present in marbles. For etching problems use Tenax TeEtch Shelf Life: This product will last at least 2 years if kept between 65° and 77°. Keep away from heat, humidity and sunlight. Please read the safety data sheet before use and follow the product instructions. #PROSEALP1QT Safety Data SheetTechnical Data Sheet