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Capstone™ ST-200
As of early 2025, Chemours Capstone™ has been discontinued, and ChemPoint is committed to helping customers find alternatives. We offer Momentive CoatOSil™ and Silquest™, silicone-based surface-modifying additives, and ICT Thetawet™, Thetaguard™, and Thetapel™ fluorosurfactants and fluoropolymers. Contact us, and one of our technical experts will assist you in finding the closest option for your formulation.
Capstone™ ST-200 is a solvent-based fluorinated polymer that forms a protective barrier to oil and water on stone, tile, and porous mineral-based surfaces. It is commonly used as the active ingredient in penetrating sealers.
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- Manufacturer: Chemours
- Product Line: Capstone™ Fluorosurfactants
- Product: Capstone™ Repellents for Stone & Tile
- Industries: Building & Construction | Coatings | Energy
- Authorized Countries: Canada | United States
Fulfilled By ChemPoint
Fulfilled By ChemPoint
Manufacturer
Product Line
Industries
Authorized Countries
Canada
United States
Overview
Chemours Capstone™ ST-200 is an acrylic fluoropolymer dispersion in n-butyl acetate. It is designed to be used in penetrating sealers as the active ingredient to provide oil and water repellence for low-porosity stone, unglazed tile, concrete, and masonry used in indoor environments. Capstone™ ST-200 delivers a durable, non-film-forming, protective barrier to oil and water that preserves the natural look and beauty of stone surfaces. Compared to common silicone-based sealers, Capstone™ ST-200 provides far superior resistance to oils and stains.
Capstone™ ST-200 should be diluted to 0.7%–1.7% actives in an appropriate solvent and applied using a brush, roller, mop, or spray applicators, such as pressurized aerosol sprayers. The surface being treated should be wet thoroughly with Capstone™ ST-200 and allowed to dry for 15 to 30 minutes at ambient temperature. The excess liquid should then be removed.
Capstone™ ST-200 is approved only for indoor use.
All samples and purchases of Capstone for new projects and applications must first be evaluated for approval by ChemPoint and Chemours.
Specifications
Appearance: Colorless to yellow liquid
Freeze–thaw stability: Product gels below 0°C (32°F)
Active solids (%): 35
Solvent (%): 65
Density (g/mL): 0.968
Flash point, closed cup, °C (°F): 28 (82)
Boiling point, °C (°F): 120 (248)
Shelf life: 2 years
Primary Chemistry: Acrylic Fluoropolymer
Features & Benefits
- Durable protection from staining
- Freeze/thaw stable
- Provides superior oil and water repellency
- Preserves the natural appearance of stone, tile, concrete, and masonry
- Allows substrate to breathe and is not film forming
- Easy to clean and maintain
- Complies with REACH requirements
- Listed on TSCA inventory
- Can be applied using aerosol sprayers
Problems Solved
Damage to stone, tile, or mineral-based surfaces caused by exposure to moisture or oils Distortion of the original appearance of stone, tile, concrete, or masonry surfaces Staining of porous stone or tile surfaces
Applications
Solvent-based penetrating sealers
Related Applications
Building & Construction
Coatings
Energy
Related Chemistries
Coatings
Related Functions
Related Technologies
Coatings
Capstone™ Fluorosurfactants Articles
Chemours Capstone® LCPFAC & SNUR Regulations
Capstone® fluorosurfactants & fluororepellents were some of the first short-chain alternatives commercialized so Chemours has lots of experience helping their customers reformulate.
Chemours Zonyl® To Capstone™
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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