Capstone™ ST-500 is a water-based, high performance penetrating sealer for acid sensitive mineral based surfaces. It provides a durable protective barrier to oil and water.
Capstone™ ST-500 is a water-based, fluorochemical dispersion designed to be used as a repellent in VOC free penetrating sealers for stone, tile, and other porous mineral based surfaces. Casptone™ ST-500 provides a durable, non-film forming, protective barrier to oil and water that improves stain resistance and allows for easy clean up. It has far superior oil repellency and stain resistance when compared to common silicone based sealers.
Capstone™ ST-500 should be diluted to 1.5-2.5% actives with deionized water and can be applied with a brush, mop, roller, or sprayer (including aerosol spray cans). The surface being treated should be thoroughly wetted and allowed to dry at ambient temperature for 15-30 min. Excess liquid should then be removed.
Capstone™ ST-500 is only approved for indoor use.
Appearance: Colorless to amber liquid
Stability: Stable at normal temperatures. Perishable if frozen
pH: 9–11
Active Solids, % 25
Density, g/mL 1.1
Flash Point (Closed Cup), °C (°F) Not flammable
Boiling Point, °C (°F) ~100 (~212)
Freezing Point, °C (°F) ~0 (~32)
Shelf Life: 2 years
Spray*: Can be used in consumer spray, including aerosol spray cans
Durable protection from staining
Superior oil and water repellency
Retains the natural appearance of stone, tile, concrete or masonry
Allows substrate to breathe (non-film forming)
Easy to clean and maintain
Preserves the beauty of natural stone and tile
Is in compliance with REACH requirements
Is listed on TSCA inventory
Can be used in aerosol spray cans
Sensitivity of stone and tile surfaces to acidic materials.
Damage to surfaces caused by exposure to water and oils.
Capstone™ ST-500 is a repellent used in water based penetrating sealers for stone, unglazed tile, grout, terra cotta, concrete, granite, and brick.
Capstone® fluorosurfactants & fluororepellents were some of the first short-chain alternatives commercialized so Chemours has lots of experience helping their customers reformulate.
Capstone™ fluorosurfactants and repellents were introduced as sustainable replacements that meet the goals of the U.S. EPA 2010/15 PFOA Stewardship Program. They are based on short-chain molecules that cannot break down to PFOA or PFOS in the environment.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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