RT7420 Leveling Agent
RT7420 is a non-ionic, hydrophobic modified polyurethane leveling agent that improves medium and high shear viscosity effectively while providing excellent thickening ratios, enhancing the flowability of water-based coatings. It significantly enhancing hiding power, uniform film formation, and gloss performance in application.
- Outstanding can-opening performance
- Antimicrobial and mold-resistant
- Exceptional splash resistance
- Improves flowabilityand leveling properties
- Free from organic tinensuring environment friendly
RT7420 TDS
- Technical Data Sheet
| Property | Typical values |
| Appearance | A slightly turbid to transparent liquid with a faint characteristic odor. |
| Solid content(wt%) | 30.0±2 |
| pH value(20℃) | 7.0±1 |
| Density(g/ml,20℃) | 1.04±0.02 |
| Brookfield viscosity(cP, 25℃) | ≤30000 |
RT7420 Typical Applications
RT7420Â delivers excellent performance in styrene-acrylic, pure acrylic, and vinyl-acrylic systems, particularly for high-gloss, high-hardness surface finishing.
RT7420 offers a comprehensive solution for exterior wall coatings that delivers superior workability, perfect finish, and defect prevention all at once.
RT7420 can prevent fogging defects and provides a good fullness.
Use & Compatibility
RT7420
- Recommends dosage is 0.1-1.0%, exact dosage determined by experimentation.
- Pre-mixed with twice the amount of water, and should be added slowly under low-speed stirring.
- The dosage of RT7420 should be adjusted according to the requirements of the product.
- Good compatibility with cellulose and alkali-swelling thickeners, and can be freely combined with them.
- RT7420 is not recommended for use as a thickener alone; it is more effective as a synergistic thickener to achieve optimal flowability.
Package and Storage
Package: Packaged in 25kg and 50kg IBC plastic drums, the container keep sealed. Custom package is acceptable in large volume.
The Shelf Life: 12 months.
Storage Conditions: Stored at 5-35°C in a cool and dark place..
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FAQ About RT7420
Yes, RT7420 should be used together with proper dispersing agent and thickeners for for formulation balance and optimal results. RT7420 mainly helps improve pigment dispersion uniformity, enhance film smoothness, reduce surface roughness in high PVC systems.
RT7420 may slightly extend open time by improving flow and leveling ability, meanwhile it can achieve more uniform coalescence and reduce surface defects, it has no bad impact on final film formation.
RT7420 is relatively stable across a typical pH range (6–9).
Similar with most associative polyurethane additives, RT7420 may slightly increase foam density depending on the base-system. But use compatible defoamers can avoid this problem.
RT7420is widely used in airless spraying for improving atomization consistency , spray pattern uniformity, and reduce misting and splashing, contribute better surface effect.
Yes, Combine RT7420 with silicone additives and enhance leveling effect further, reduce surface tension, Better to care the dosage of it, excessive usage will lead to over-slippery and intercoat adhesion.
