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- Manufacturer: Chemours
- Product Line: Capstone™ Fluorosurfactants
- Product: Capstone™ Surfactants and Coating Additives
- Industries: Adhesives | Building & Construction | Care Chemicals | Coatings | Inks
- Authorized Countries: Canada | United States
Capstone™ FS-63
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™ FS-63 is an anionic fluorosurfactant that is designed for use in water-based paints & coatings to improve wetting, leveling, anti-blocking, and dirt pick up resistance.
Quantity
Documents
Specifications
Appearance: Pale yellow to amber liquid
pH: 7.5–9.0
Specific Gravity: 1.1 g/mL
Stability: Freeze-thaw stable. Mix well before
use.
Composition: 35% solids, 20% isopropyl alcohol, 45% water
Shelf Life: 5 years
Flash Point: 26 °C (79 °F)
Foam: Can foam with excessive shaking
Primary Chemistry:
Anionic Fluorosurfactant
- Manufacturer: Chemours
- Product Line: Capstone™ Fluorosurfactants
- Product: Capstone™ Surfactants and Coating Additives
- Industries: Adhesives | Building & Construction | Care Chemicals | Coatings | Inks
- Authorized Countries: Canada | United States
Manufacturer
Product Line
Industries
Authorized Countries
Canada
United States
Overview
Capstone™ FS-63 is a water-soluble, anionic, fluorosurfactant used to decrease the surface tension of aqueous solution in order to improve wetting, leveling, and spreading. Capstone™ FS-63 is able to drastically reduce the surface tension of water-based formulations while producing minimal foam making it an ideal additive for architectural coatings. When used to replace other leveling and wetting additives, Capstone™ FS-63 typically provides a cost savings due to the low usage rates and the ability to eliminate defoamers. Capstone™ FS-63 is available commercially as a 35% solids solution and can be easily diluted to the desired working concentration with water.
Note: All samples and purchases of Capstone for new projects and applications must first be evaluated for approval by ChemPoint and Chemours.
Specifications
Appearance: Pale yellow to amber liquid
pH: 7.5–9.0
Specific Gravity: 1.1 g/mL
Stability: Freeze-thaw stable. Mix well before
use.
Composition: 35% solids, 20% isopropyl alcohol, 45% water
Shelf Life: 5 years
Flash Point: 26 °C (79 °F)
Foam: Can foam with excessive shaking
Primary Chemistry:
Anionic Fluorosurfactant
Features & Benefits
- Anti-blocking
- Oil repellency
- Dirt pick-up resistance
- Wetting and enhanced leveling
- Re-wet characteristics in multi-coat applications
- Reduces cratering and provides faster spreading
- Lowers surface tension to improve cleaning efficiency
- Reduced bath drag-out
- Very Low Foam
- REACH compliant
- Listed on TSCA inventory
Problems Solved
Aggressive tack of paint applied in architectural applications.
Pinholes, cratering, and orange peel surface defects caused by high surface tension.
Applications
When used in low VOC architectural coatings at 0.02-0.04%, Capstone™ FS-63 improves wetting and leveling resulting a reduction in surface defects. Coating films containing Capstone™ FS-63 also show improved oil repellency and anti-blocking properties.
In water-based paints and floor finishes Capstone™ FS-63 is used to decrease surface defects like cratering, orange peel, and pinholes.
Additionally, re-wet characteristics of the cured film are improved in multi-coat applications.
Typical usage rates range from 0.02-0.05%
Capstone™ FS-63 can be used in metal cleaning applications to reduce bath drag-out and improve efficiency.
Related Applications
Related Chemistries
Adhesives
Coatings
Inks
Related Functions
Building & Construction
Care Chemicals
Coatings
Inks
Related Technologies
Capstone™ Fluorosurfactants Articles
Chemours Capstone™ - Reduce Cost of Latex Paint Formulations
The addition of a small amount of Capstone™ into latex paint formulations eliminates the need for wetting agents and offers significant cost savings.
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