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.
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.
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
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
Aggressive tack of paint applied in architectural applications.
Pinholes, cratering, and orange peel surface defects caused by high surface tension.
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.
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.
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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