RT7620 Hydrophobic Modified PU Rheology Agent
RT7620 is a non-ionic hydrophobic modified polyurethane rheology modifier, specifically formulated for high-gloss, low-VOC systems. providing efficient mid-to-low shear viscosity while maintaining superior flow ability. Strong splash resistance during processing and application.
- Outstanding rheology control in water-based coating systems
- Low foaming during production and application
- High transparency with no fogging or haze defects
- Provides antimicrobial and anti-mold performance
- Delivers high gloss and a hard, full film finish
- Tin-free formulation for environmental compliance
RT7620 TDS
- Technical Data Sheet
| Property | Typical values |
| Appearance | A slightly turbid to transparent liquid with a faint characteristic odor. |
| Solid content(wt%) | 46.0±1 |
| pH value(20℃) | 7.0±1 |
| Density(g/ml,20℃) | 1.04±0.02 |
| Brookfield viscosity(cP, 25℃) | ≤8000 |
Recommended Dosages
RT7620 pu thickener dosage should be 0.05-5.0% on total supply, which should be added slowly during stirring process and dispersed at high speed. It is suggested to add RT7620 before emulsion application to achieve high gloss performance. The dosage should be adjusted according to the viscosity requirements of the product.
RT7620 Typical Applications
It delivers outstanding performance across styrene-acrylic, pure acrylic, and vinyl-acrylic systems, with particular suitability for high-gloss, high-hardness surface finishing.
It is engineered for diverse coating formulations, enabling the preparation of ranging from matte to high-gloss finishes.
It prevents fogging defects while ensuring optimal film fullness. This makes it especially recommended for spray application formulations.
Packaging and Storage
RT7620
Packaging : Packaged in 50kg and 200kg IBC plastic drums, the container remains sealed.
Storage conditions: With a storage period of 12 months at 5-35°C and protected from light and heat.
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FAQ About RT7620
Yes, RT7620 has good compatibility with cellulose thickeners and alkali-swelling thickeners, and can be freely combined with them.
RT7620 can be used as a main thickener or as a co-thickener to obtain excellent fluidity.
A: No. While RT7620 provides stability regarding brush marks, it maintains good leveling recovery to make sure a stable application process without losing the final appearance.
A: If you add it in standard dosage range, the system will show good viscosity stability, and there will no significant viscosity drift occurs during the application process.
A: It does not significantly affect the drying progress, but it will optimize film formation uniformity to get a denser and smoother coating.
A: RT7620 offers excellent system stability, it can reduce the risk of aqueous phase separation effectively or stratification during storage.
A: No. It does not compromise water resistance; it typically enhances water barrier performance due to the formation of a denser film on the contrary.
