Wyncoat® DIS-8290 – Waterborne Wetting and Dispersing Agent
Wyncoat® DIS-8290 is a versatile waterborne dispersing agent based on high-molecular block copolymer with pigment-affinic groups. It delivers excellent wetting and dispersing performance for most inorganic and organic pigments on the market, and shows outstanding color development especially for organic red pigments.
1. Product Data
- Appearance: Yellow transparent liquid
- Active content: 40%
- Solvent: Water
- Acid value: 7–15 mgKOH/g
2. Dispersing and Viscosity Reduction
Wyncoat® DIS-8290 is suitable for milling and dispersing various pigment concentrates, with excellent viscosity-lowering efficiency.
The table below compares viscosity values (mPa·s) in typical waterborne pigment slurries:
| Item |
TiO₂ |
Carbon Black C311 |
PR254 Red |
PY139 Yellow |
Phthalo Blue |
| DIS-8290 |
295.00 |
155.00 |
410.00 |
203.00 |
107.00 |
| Competitor |
293.00 |
190.00 |
363.00 |
185.00 |
120.00 |
DIS-8290 achieves strong viscosity reduction in both organic and inorganic pigment slurries, particularly outstanding for carbon black.
3. Coating Film Properties
Tests in waterborne resin systems confirm Wyncoat® DIS-8290 supports excellent color development, gloss and haze reduction. Performance is especially strong for organic red pigments.
White Paint
| Index |
DIS-8290 |
Competitor |
| Gloss (20°/60°/85°) |
51.5 / 81.6 / 95.5 |
52.3 / 86.5 / 93.7 |
| Haze |
9.8 |
10.4 |
Black Paint (C311)
| Index |
DIS-8290 |
Competitor |
| Gloss (20°/60°/85°) |
66.1 / 86.5 / 96.1 |
62.3 / 86.5 / 93.7 |
| Haze |
8.2 |
10.4 |
PR254 Red Paint
| Index |
DIS-8290 |
Competitor |
| Gloss (20°/60°/85°) |
49.6 / 78.5 / 95.7 |
42.7 / 75.9 / 94.6 |
| Haze |
7.9 |
9.7 |
PY139 Yellow Paint
| Index |
DIS-8290 |
Competitor |
| Gloss (20°/60°/85°) |
23.1 / 62.8 / 93.3 |
32.0 / 69.5 / 94.1 |
| Haze |
7.5 |
7.4 |
Phthalo Blue Paint
| Index |
DIS-8290 |
Competitor |
| Gloss (20°/60°/85°) |
58.8 / 81.4 / 90.5 |
56.0 / 81.2 / 95.6 |
| Haze |
8.3 |
9.0 |
4. Heat Storage Stability
Wyncoat® DIS-8290 provides excellent heat storage stability for pigment concentrates.
Viscosity data after heat storage at 50°C:
| Item |
Initial |
7 Days |
14 Days |
| DIS-8290 (TiO₂) |
328.00 |
611.00 |
700.00 |
| BYK-190 (TiO₂) |
293.00 |
356.00 |
580.00 |
| DIS-8290 (Carbon Black) |
163.00 |
135.00 |
157.00 |
| BYK-190 (Carbon Black) |
159.00 |
154.00 |
158.00 |
| DIS-8290 (Red) |
510.00 |
374.00 |
210.00 |
| BYK-190 (Red) |
363.00 |
345.00 |
148.00 |
| DIS-8290 (Yellow) |
203.00 |
205.00 |
208.00 |
| BYK-190 (Yellow) |
105.00 |
105.00 |
230.00 |
| DIS-8290 (Blue) |
107.00 |
111.00 |
122.00 |
| BYK-190 (Blue) |
105.00 |
103.00 |
102.00 |
Note: After 2 weeks at 50°C, Wyncoat® DIS-8290 shows slight soft settling, which is better than the competitor.
5. Key Advantages
- Excellent wetting and dispersing stability for both inorganic and organic pigments
- Effectively reduces viscosity of dispersion systems
- Outstanding color development for organic pigments
6. Applications
- Industrial coatings for steel structures
- Plastic coatings
- Marine coatings
- Wood coatings for home decoration
- Metal packaging coatings
- Furniture coatings
- Automotive OEM coatings
- Automotive parts coatings
7. Recommended Dosage
Based on active solid content vs. pigment weight:
- Inorganic pigments & fillers: 2–5%
- Organic pigments: 10–40%
- Carbon black: 20–100%
Topwin is one of the leading professional manufacturers and solution providers with more than 20 years of experience, and has domestic top-level engineers in the silicone surfactant industry. Specializing in research and development, production, sales, and marketing of silicone-based special functional performance materials, Topwin also serves as a professional provider of technical services. Now our products are widely used in Polyurethane Foam, Corp Protection, Coatings and Inks, Leather & Textile, Silicone Release Coating for Paper and Film, Personal Care, and others.
