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Capstone™ FS-35
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-35 is a nonionic fluorosurfactant that dramatically reduces surface tension of aqueous and solvent based formulations. It's most often used in paints, inks, cleaners, and floor care formulations.
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Documents
- 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
Fulfilled By ChemPoint
Fulfilled By ChemPoint
Manufacturer
Product Line
Industries
Authorized Countries
Canada
United States
Overview
Capstone™ FS-35 is an APEO and VOC free, nonionic fluorosurfactant that provides exceptionally low surface tension to water-based or solvent-based formulations at very low usage rates. The reduction of surface tension provided by Casptone™ FS-35 makes it an ideal wetting and leveling aid for coating, ink, cleaner, and floor care formulations.. Capstone™ FS-35 is compatible with resins of any ionic class and it's stability in acidic, basic, and hard water environments make it exceptionally easy to incorporate into a variety of formulations. Capstone™ FS-35 has low foaming properties and will resist the formation of foam when agitated. It is available commercially as a 25% solids solution in 5 gallon pails and 55 gallon drums.
Note: All samples and purchases of Capstone for new projects and applications must first be evaluated for approval by ChemPoint and Chemours.
Specifications
Appearance: Light yellow to dark amber liquid
pH: 5.5-7.5 g/mL
Specific Gravity: 1.1 g/mL
Stability: Freeze-thaw stable
Composition: 25% solids
Shelf Life: 5 years
Primary Chemistry:
Nonionic Fluorosurfactant
Features & Benefits
- VOC-free
- APEO-free
- Compatible with additives and resins of any ionic class
- Stable in acidic, basic, brine, and hard water environments
- Provides wetting and leveling
- Lowers surface tension
- Reduces surface defects
- Compatible with hydrocarbon surfactants Improved etching efficiency
- Effective plating bath aid
- Nonflammable
- Low foaming
Problems Solved
Surface defects caused by poor leveling.
Poor wetting of surfaces by water-based inks.
Insufficient penetration of floor care products due to high surface tension.
Applications
When added to floor care, paint, or ink formulations at use rates ranging from 0.01-0.1% actives, Capstone™ FS-35 provides drastic improvement of wetting and leveling. This leads to a reduction of surface defects like cratering, orange peel, and pinholes.
In cleaning solutions Capstone™ FS-35 is added at rates of 0.01-0.1% actives to increase wetting of oils and improve penetration of the surface to improve overall cleaning performance.
Related Applications
Related Chemistries
Adhesives
Coatings
Inks
Related Functions
Building & Construction
Care Chemicals
Coatings
Inks
Related Technologies
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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