Silicone-based Wetting Agent
Silicone wetting agents‌, also known as organosilicon substrate wetting agents, it used to cut surface tension, contribute superior spreading and adhesion on low-energy substrates, while delivering multifunctional benefits and broad compatibility across coating, ink, and adhesive systems.
- Extremely low surface tension
- Strong permeability
- Anti-foaming properties
- High Temperature resistance
- Stable chemical performance
Silicone Wetting Agent Technical Data Sheet
| Wetting agent ingredients | Silicone polyether additives |
| Appearance | Transparent liquid |
| Active content | 100% |
| Soluble | Acetone, Solvent oil |
| Partially soluble | Butyl Acetate, Ethanol |
| Insoluble | Water, TPGDA |
| Wetting agent formulation: | Total formula: 0.1-1.0%. |
How Does Silicone-based Wetting Agent Work in Your Project?
Silicone-based wetting agents can reduce the surface tension of the substrates below 20 mN/m (some products even as low as 19.6 mN/m) by controlling their molecular structure of siloxane segments. This will improve the your application experience obviously.
Silicone polyether additive wetting agent manufacturer-Celotech Ruico can help you achieve true sustainable development by using less paint and a more environmentally friendly system.
Water’s surface tension as high as 72 mN/m, while most plastic and metal substrates surface tension is only 30-40 mN/m. this kind tension difference between the water and substrates causes coatings easy to shrink into water droplets status, difficult to spreading evenly and deeply resulting in defects such as pinholes and craters.
Silicone Wetting Agents Types
Designed for maximum wetting efficiency, delivering instant spreading and deep penetration in water-based systems.
Superior compatibility and surface control, it can enhance flow, leveling, and film formation for smoother, defect-free finishes.
Ensures complete wetting and no defects surfaces when conventional wetting agents fail on low-energy substrates.
Silicone Wetting Agent Advantages
Silicone Wetting Agents formula is Low-toxicity & eco-friendly to users.
The specific amount needs to be adjusted according to the system.
Combine the wetting,leveling,defoaming,anti-shrinkage function to one products.
Adaptable to various systems through molecular structure adjustment (such as polyether modification ratio, end-group functional groups)
Silicone Wetting Agent Applications
As a key additive in modern coating formulations, it is primarily used to solve wetting problems on low surface energy substrates：
Improving adhesion and appearance quality in aquatic coating system, automotive paints, industrial paints, wood coatings and metal coatings.
Silicon-based wetting agents can enhance color development and printing accuracy, improve ink spreadability and adhesion significantly in gravure, flexographic and inkjet printing, especially in the high speed conditions.
Surface Tension Reducer promote the penetration of the colloid into the microporous structure in composite adhesives, pressure-sensitive adhesives, and building sealants.
Silicone Polyether Wetting Agents Handle Guide
Timing of Addition: You should add it in middle and later phase of formulation, use dropwise addition method slowly while stirring to ensure uniform dispersion.
Dosage: Precision is crucial than volume, 0.1%-0.1%(based on total) is sufficient for most projects. Excessive addition may cause poor recoatability or a slippery surface.
Compatibility: Silicone-based wetting agents should avoid match with strong organosilicone defoamers, or lead to antagonistic effects. Adding the wetting agent first, then the defoamer. Total addition should be controlled under 1.2% if they must be used simultaneously.
Packaging and Delivery
Celotech Ruico is original manufacturer of ink and adhesive additives located in Tianjin, China, which proximity to Tianjin Port allows us to lower transportation costs significantly and ensure efficient, on-time delivery for global customers.
Packages: 25Kg Per barrel, customized pacakage is acceptable for bulk purchasing.
Celotech Ruico Different Silicone Wetting Agents Technical Data Comparison
- Comparing and Choosing the Right One for Your Application
| Mode | Appearance | Active Content | Chemical Structure | TDS |
| RT-A151 | Transparent liquid | 100% | Polyether siloxane copolymer | Download PDF |
| RT-A140T | Light yellow to yellowish-brown, slightly turbid liquid | 100% | Siloxane dual-structure substrate | Download PDF |
FAQs About Silicone Wetting Agents
System Compatibility:Water-based, solvent-based, or UV-cured systems;
Substrate Compatibility: Plastics (PE/PP), metals, wood,or other substrates;
Performance Priorities: anti-cratering, anti-foaming, or leveling the surface.
You can talk with our technical expert for formulation.
We recommend using high-penetration organosilicon wetting agent products. Such as polyether modified siloxane with twin structure.
Improper addition or excessive amount will lead to pinholes, You should add it slowly dropwise under low shear conditions by total addition amount to 0.1%–1.0%. avoiding high-speed dispersion that could damage the molecular structure.
Yes, you can contact our technical team for lab testing data for your special formulation, applications and systems.
Yes, Celotech Ruico products certified by REACH, and free SVHC, you can visit our qualifications for more info.
Yes it is suitable for high solid system. And silicone tension reducer can reduce solvent consumption and low addition amount (‌0.1%–1.0%‌) used in formulation brings minimal VOC.
