Highly effective thickener providing excellent viscosity build-up in aqueous systems.
Outstanding water retention capacity, minimizing sag and enhancing workability in cementitious and coating formulations.
Good compatibility with common surfactants, electrolytes, and other cellulose ethers.
Non-ionic nature ensures stable performance across a broad pH range (3–11).
Low foam generation, supporting efficient high-shear mixing and application processes.
Cement-based tile adhesives and grouts.
Exterior insulation finishing systems (EIFS) base coats and renders.
Water-based architectural paints and interior wall coatings.
Self-leveling underlayments and floor screeds.
Oilfield drilling fluids requiring rheology control and fluid loss prevention.
| Chemical Type | Hydroxyethyl cellulose (HEC) |
| Product Form | White to off-white free-flowing powder |
| Appearance | Free-flowing granular or fine powder |
| Viscosity (1% aqueous solution, 20°C) | Approx. 100,000 mPa·s |
| Moisture Content | ≤ 5.0% (w/w) |
| pH (1% solution, 25°C) | 6.0 – 8.5 |
| Solubility | Readily soluble in cold water; forms clear, viscous solutions |
| Substitution (DS) | 1.7 – 2.2 |
Q1: What is the primary functional role of Lotte B100K in aqueous formulations?
A: Lotte B100K functions primarily as a non-ionic rheology modifier and thickener, providing excellent viscosity build-up, shear-thinning behavior, and suspension stability in water-based systems.
Q2: How does Lotte B100K compare to lower molecular weight HEC grades in terms of solution clarity and viscosity efficiency?
A: Due to its higher molecular weight, Lotte B100K delivers significantly greater viscosity per unit weight compared to lower-MW HEC grades, while still yielding clear, low-haze aqueous solutions when properly dispersed and hydrated.
Q3: Is Lotte B100K compatible with common surfactants and electrolytes found in industrial cleaning or personal care formulations?
A: Yes — Lotte B100K exhibits good compatibility with anionic, non-ionic, and amphoteric surfactants, and maintains viscosity stability in the presence of moderate levels of salts, making it suitable for challenging formulation environments.
Q4: What is the recommended method for incorporating Lotte B100K to avoid clumping during preparation?
A: To ensure optimal dispersion, it is recommended to pre-mix Lotte B100K with a water-miscible liquid (e.g., glycerin or propylene glycol) or dry diluent (e.g., sodium sulfate), followed by gradual addition to agitated water under controlled shear conditions.
Q5: Can Lotte B100K be used in applications requiring long-term storage stability at ambient temperatures?
A: Yes — when formulated within appropriate pH ranges (typically 4–10) and protected from microbial contamination, Lotte B100K contributes to robust shelf-life stability in finished products stored under standard ambient conditions.
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