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SURFLON S-386 is a high-performance non-ionic fluorosurfactant wetting agent engineered to deliver extremely low surface tension, enabling rapid wetting, penetration, and leveling on difficult, low-porosity mineral substrates such as granite and dense natural stone.
When used in color converters (color enhancers) and epoxy top coats, S-386 helps the liquid system enter micro-pores and micro-cracks, improving contact, anchoring, and uniform appearance while reducing surface defects.In stone coating systems, SURFLON S-386 is especially valuable where conventional hydrocarbon surfactants fail—such as on polished granite, resin-treated stone, and tight surfaces where coatings tend to crawl, bead, or form pinholes.
Non-Ionic Fluorosurfactant, Fluorinated Non-Ionic Wetting Agent, PFPE-Based Non-Ionic Surfactant, Fluorochemical Surface Additive
1200 g/mol
65530-66-7
Non-Ionic
3824 99 00
Not regulated
(Non-hazardous, non-flammable)
Clear to slightly hazy 100% active liquid
100%
1.15 g/cm³
| Parameter | Specification |
|---|---|
| Product Name | SURFLON™ S-386 |
| Product Type | Nonionic fluorosurfactant / fluorinated wetting agent |
| Chemistry | C6 |
| Active Content | 100% (w/w) |
| Physical Form @ 25°C | Clear to pale yellow viscous liquid |
| Ionic Character | Nonionic |
| Density @ 25°C | 1.05 – 1.25 g/cm³ |
| Viscosity @ 25°C | 1000 – 2000 mPa·s (cP) |
| Water Solubility | Soluble / dispersible |
| Solubility in Common Solvents | Soluble in alcohols, glycol ethers; compatible with many ketones/esters (trial recommended) |
| Cloud Point (1% aq.) | 20 – 40 °C |
| pH (1% aq.) | 5.0 – 7.5 |
| Surface Tension (0.1% in water) | ≤ 20 mN/m |
| Interfacial Tension (0.1% vs mineral oil) | ≤ 2 mN/m |
| Critical Micelle Concentration (CMC) | 0.01 – 0.05% |
| Flash Point | > 100 °C |
| Pour Point | 0 to 15 °C |
| Thermal Stability | Up to 200 °C |
| Hydrolytic Stability | Good in neutral systems; avoid strong acids/alkalis for prolonged periods |
| Recommended Dosage | 0.01 – 0.20% (on total formulation) |
| Compatible Systems | Waterborne & solvent-borne coatings, inks, overprint varnishes, UV/EB systems (trial recommended) |
| Key Functions | Strong wetting, leveling, anti-crater/fisheye control, low foam, improved substrate wet-out |
Drives liquids into micro-pores and micro-cracks
Improves contact on polished granite and dense stones
Reduces craters, fisheyes, pinholes, and poor leveling
Supports even color development and consistent gloss
Performance achieved at ppm-level addition
Optimize through trials; dosage depends on solvent package, resin polarity, and substrate condition.
0.07 – 0.15%
0.07 – 0.1% (100–800 ppm) on total formulatio
Start at 0.1%, increase stepwise up to 0.2% if needed
Note: Over-dosage of fluorosurfactants can reduce intercoat adhesion or create slip; stay within optimized range.
Fluorosurfactants improve wetting, but cannot fully overcome heavy oils/waxes.
Wetting, adhesion, recoatability, and stain resistance on real stone samples.