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Nonionic surfactant based on fatty alcohol ethoxylate chemistry with optimized hydrophilic-lipophilic balance (HLB ≈ 10).
Excellent emulsifying and solubilizing performance in aqueous systems across a broad pH range.
Good low-temperature stability and freeze-thaw resistance in formulated products.
Low foaming profile suitable for high-shear and industrial cleaning applications.
Readily biodegradable under aerobic conditions, supporting sustainable formulation goals.
Industrial and institutional (I&I) hard-surface cleaners.
Emulsion polymerization stabilizers for acrylic and styrene-butadiene latexes.
Agrochemical adjuvants for pesticide and herbicide formulations.
Textile auxiliaries including scouring and dyeing assistants.
Paint and coating additives for pigment dispersion and gloss enhancement.
| Chemical Type | Fatty alcohol ethoxylate (C12–C15, ~6–7 EO units) |
| Product Form | Liquid |
| Appearance | Pale yellow to colorless, clear to slightly hazy liquid |
| HLB Value | Approx. 10.0 |
| pH (1% aqueous solution, 20 °C) | 5.5–7.0 |
| Cloud Point (1% aqueous solution) | ≈ 65–70 °C |
| Active Content | ≥ 98.0 wt-% |
| Density (20 °C) | ≈ 0.99–1.02 g/cm³ |
Q1: What is the primary function of Lutensol FAS 10 in industrial formulations?
A: Lutensol FAS 10 is a nonionic surfactant based on fatty alcohol ethoxylates, primarily used as a wetting agent and emulsifier in aqueous systems. It enhances surface activity, improves substrate penetration, and supports stable dispersion of hydrophobic components in water-based coatings, agrochemicals, and cleaning products.
Q2: Is Lutensol FAS 10 suitable for low-foaming applications?
A: Yes — due to its branched ethoxylation pattern and molecular architecture, Lutensol FAS 10 delivers inherently low foaming behavior, making it well-suited for high-shear processes and applications where foam control is critical, such as industrial cleaning or spray-applied formulations.
Q3: How does temperature affect the performance of Lutensol FAS 10?
A: Lutensol FAS 10 exhibits good thermal stability and retains effective surface activity across a broad temperature range. Its cloud point is typically above 60 °C, supporting reliable performance in warm-process applications without premature phase separation or loss of wetting efficiency.
Q4: Can Lutensol FAS 10 be used in combination with ionic surfactants?
A: Yes — Lutensol FAS 10 is generally compatible with anionic, cationic, and amphoteric surfactants, enabling synergistic formulation strategies. However, compatibility should be verified experimentally in the final system, particularly when high electrolyte content or extreme pH conditions are present.
Q5: What are typical dosage recommendations for Lutensol FAS 10 in end-use applications?
A: Dosage depends on the specific formulation requirements and desired performance profile, but it is typically used at low concentrations — generally ranging from 0.1% to 2% by weight — with optimization guided by application testing rather than fixed thresholds.
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