Capstone™ FS-50

Capstone™ FS-50 is an amphoteric fluorosurfactant that is used to reduce surface tension and provide sustained foam. It is most often used in water-based cleaning products.
partner icon image
Fulfilled by ChemPoint
Product Overview
Capstone™ FS-50 is an amphoteric fluorosurfactant that is used to significantly reduce the surface tension of water-based formulations. Capstone™ FS-50 is also used to provide sustained foam. This reduction of surface tension and sustained foaming makes Capstone™ FS-50 ideal for use in industrial and institutional cleaning products. Capstone™ FS-50 is available commercially as a 27% solids solution in 5 gallon pails and 55 gallon drums.
Product Specifications
Appearance: Clear to hazy amber liquid
Chemical Structure: Betaine partially fluorinated surfactant
Composition: 27% solids in water/ethanol
Specific Gravity: 1.03 g/mL
Viscosity at 20 °C (68 °F): 9.7 cP
Thermal Stability: Stable up to 175 °C (347 °F)
pH: 5–7
Flash Point (closed cup): 25 °C (77 °F)
Solubility at 25 °C (77 °F): Soluble in water, ethanol and ethylene glycol
Shelf Life: 5 years
Primary Chemistry: Amphoteric Fluorosurfactant
Features & Benefits
Reduces the surface tension of aqueous solutions
Useful in providing sustained foam facilitates the formation of a thin low surface tension aqueous film
Aids in creation of surface defect-free films over low surface tension
Improves wetting, spreading, and leveling properties
REACH compliant
Listed on TSCA inventory
Problems Solved
High surface tension of water-based paints that causes poor wetting and adhesion.
Capstone™ FS-50 is recommended for use as a foaming agent and surface tension reducing surfactant in oil field operations, industrial cleaning solutions, floor care products, and latex paint formulations.