RT7450 Smoothing Agent
RT7450 is a high-performance polyether-modified siloxane leveling additive that is widely applicable in water-based/solvent-based system, radiation-cured/UV systems, providing excellent flow, surface smoothness, and defect control with minimal impact on adhesion.
- Superior leveling performance
- Improve slipperiness and transparency
- Anti-porosityand flowability
- Excellent recoating properties
- Surface feel improvement
RT7450 TDS
- Technical Data Sheet
| Property | Typical values |
| Appearance | transparent liquid |
| Chemical composition | 100% polyether-siloxane copolymer |
| TI | 7.0±1 |
| Solid content(wt%) | 50% |
| Shear characteristics | Mid shear |
Recommended Dosages
Applications Recommended Dosages Wood and furniture coatings 0.05-0.5 Automobile finish 0.03-0.2 Water-based solvent industrial coatings 0.05-03 Epoxy System of Radiation Curing Printing Ink and Overprint Oil 0.05-0.3 Leather topcoats based on polyurethane, acrylic resin and nitro systems 0.1-1.0
RT7450 Typical Applications
It can improve leveling coating spread and reduce appearance defects such as pinholes and orange peel to get a more uniform surface.
It optimizes leveling and surface tension distribution during spraying, to achieving a high-gloss, defect-free car body coating surface with an excellent aesthetic finish.
It can reduce surface tension rapidly during the drying process to ensure uniform spreading, get a high-gloss smooth finish that is free of orange peel and pinholes.
It can reduce surface defects, getting a more uniform, dense coating with enhanced overall visual quality by improving leveling and wetting properties.
It can reduce surface tension rapidly during UV/EB curing, and achieve a uniform, high-gloss printed coating free of surface defects by enhancing leveling and wetting properties.
Packaging and Storage
RT7450
Store in a cool and dry place under normal conditions, and transport according to standard product specifications.
Download the Technical Data or Contact with Experts for Customized Formulation Now
FAQ About RT7450
A: RT7450 features of polyether-siloxane structure that reduces the system’s surface tension through rapid interfacial migration, but it achieves dynamic leveling at the same time. rather than merely lowering static surface tension only.
A: It belongs to the moderate migration-control type (balanced migration system), achieving a balance between leveling performance and inter-coat adhesion.
A: When using RT7450 to substrates such as PP or poor metal pretreatment, the dosage must be controlled to avoid a potential risk of slight cratering, so we recommend to test it before large scale usage.
A: There is a risk of competitive adsorption with silicone-based defoamers, though the overall system remains stable; it is recommended to optimize the order of addition to avoid interfacial competition.
A: RT7450 Leveling efficiency will decrease in high-PVC systems, but it still can improve surface uniformity.
A: Â Yes, The active content or dilution system can be adjusted according to the customer’s formulation.
A: It has no impact on the drying of system, but it may slightly change the uniformity of surface drying.
