About the ESLEAM® AD Series
The ESLEAM® AD series consists of comb‑type functional polymers designed with two optimized units:
- Affinity units that strongly adsorb to pigment surfaces
- Solubility‑control units that enhance compatibility with various solvents and provide steric repulsion
This dual‑unit architecture delivers excellent dispersing performance—especially for fine inorganic pigments.

Features
- Excellent dispersibility for inorganic pigments, offering strong prevention of pigment aggregation, reduction of system viscosity, and improved dispersion stability.
- High purity: All products contain 100% active materials and are free from impurities such as alkali metals.
- Outstanding solubility across a wide range of solvents.
- Superior thermal stability: Products exhibit complete thermal decomposition at approximately 400°C in a nitrogen atmosphere.
Applicable Pigments
| Pigment Type | Particle Size | Solvent Compatibility |
|---|---|---|
| Metals, carbon, carbides | < 1 µm | Water / Organic solvents |
Product Specifications & Solubility Table
| Product Name | Viscosity (mm²/s, 25°C) | Solid Content (%) | Water | Ethanol | Butyl Carbitol | Turpineol | PGMEA | Toluene |
|---|---|---|---|---|---|---|---|---|
| AD‑3172M | 600 | 100 | Soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑374M | 500 | 100 | Slightly soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑508E | 1,700 | 100 | Insoluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑3284M | 900 | 100 | Slightly soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑3285E (Under development) | 1,500 | 100 | Insoluble | Soluble | Soluble | Soluble | Soluble | Soluble |
| AD‑370 *(Under development) | 60 | 100 | Soluble | Soluble | Soluble | Soluble | Soluble | Soluble |
Notes
Solubility definitions:
- Soluble = fully soluble
- Slightly soluble = slight haze / partially soluble
- Insoluble = not soluble
Testing conditions:
- All solubility evaluations were conducted using 5 wt% solutions at 25°C.
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