Technical data
| Appearance | Clear transparent liquid |
|---|---|
| Color (Hazen) | ≤150 |
| Acid value (mgKOH/g) | 120–145 |
| Free acid (wt%) | ≤2.0 |
| Viscosity (mPa·s, 25℃) | 2100–2900 |
| Density (g/ml, 25℃) | 1.140–1.250 |
| Water content (wt%) | ≤0.1 |
| Inhibitor MEHQ (ppm) | 300–500 |
Values are typical. The latest TDS and batch COA govern.
Key features
- Low acid value — minimal impact on system pH
- High peel strength and flexibility
- Excellent oil solubility and resin compatibility
- Purified: low ionic impurities
Typical applications
- Nail gels (HEMA-free formulations)
- Leather and synthetic leather coatings
- Asphalt modification
- UV adhesives
- Electronic potting and semiconductor packaging
FAQ
Is KM2140 suitable for HEMA-free nail gels?
Yes in terms of structure — it is HEMA-free, low in acid value and flexible. But nail gel is a cosmetic-contact application: raw material compliance and safety assessment for the target market are still required, and industrial grade cannot be sold as cosmetic grade.
Is KM2140M a different product?
No. KM2140M is a legacy internal code for the same product; use KM2140 externally.