Hydroxyl-functional styrene-acrylic dispersion / Two-component waterborne industrial coatings, floor coatings, wood coatings and other high-appearance protective coatings / TDS
01 Product Description
Hydroxyl content on solids: 1.8%. HN-QB2518 is a high-solids, low-hydroxyl styrene-acrylic dispersion offering high stability, gloss, fullness, long open time and good cost efficiency. After full crosslinking, it provides high hardness, good flexibility, water resistance and chemical resistance. Both water-dispersible and validated hydrophobic polyisocyanate hardeners may be used.
02 Recommended Applications
Two-component waterborne industrial coatings.
Floor coatings.
Wood coatings.
Other high-appearance protective coatings.
03 Technical Data
| Item | Specification |
|---|---|
| Appearance | Slightly blue translucent dispersion |
| Solid Content | 50.0 +/- 1.0% |
| Viscosity (Brookfield, 25 deg C) | 100-1000 mPa.s |
| pH | 2.5-4.0 |
| Hydroxyl Content on Solids | 1.8 +/- 0.1% |
| Hydroxyl Value on Solids | Approx. 59.4 +/- 3 mg KOH/g |
| Acid Value on Solids | <= 2 mg KOH/g |
| Stability in 2% CaCl2 Aqueous Solution | Pass |
| Neutralization Guidance | Neutralization is optional and does not affect dispersion stability. AMP-95, DMEA or a validated inorganic base is preferred; avoid high residual free-amine levels. |
04 Packaging, Storage and Transportation
Standard packages: 200 kg, 50 kg or 25 kg drums, or customized packaging as agreed.
Store in a ventilated, dry warehouse and avoid direct sunlight.
Recommended storage and transportation temperature: 5-30°C.
Shelf life is six months; product may still be used after inspection if no abnormal change is found.
Safety: Water-based, non-flammable dispersion. In case of contact with eyes or skin, rinse immediately with plenty of water.