Radiation-curing system new additive: Anhui Aiyouta IOTA 170 - Side-chain acrylic ester modified silicone oil for practical application

1. Unique molecular structure, achieving multiple surface enhancement through cross-linking
IOTA 170 is a side-chain acrylic ester modified polyorganosiloxane. Its molecular side chains carry acrylic ester functional groups, which are different from ordinary physical additive silicone oil. It can participate in radiation-curing cross-linking reactions. The silicon-oxygen chain segments can chemically bond and embed into the interior of the paint film, and will not easily migrate and precipitate. The product has a pale yellow transparent liquid appearance, with an active substance content of 99.9%, a viscosity range of 60–150 cp, and possesses multiple functions such as flow promotion, degassing and foaming elimination, and anti-rebound adhesion. It also enhances the coating's scratch resistance and anti-mark pen graffiti performance, providing a gentle and smooth surface feel, and is suitable for UV paints, various light-curing inks, and other formulations.


2. Versatile application scenarios, clearly recommended addition range
This modified silicone oil is widely used in flat printing inks, light-curing varnish oils, and screen printing inks. The recommended addition amount for flat printing inks is 0.1-1.5%; for light-curing inks and varnish oils, it is 0.1-1.0%; for screen printing inks, it is 0.1-2.0%. During use, it can be directly added in the original liquid form, or pre-diluted with the accompanying solvent. It can be added during the grinding stage, or added later during the clear coat stage. It is recommended to use high shear dispersion or pre-dilution in advance to ensure the uniform mixing of the system.


3. Frequent customer questions answered to eliminate formulation debugging concerns
Q1: Will IOTA 170 affect the paint film adhesion after addition?
A1: When used within the recommended addition range, this product participates in cross-linking curing and will not damage the paint film adhesion; excessive addition poses risks, and it is recommended to add in a gradient test at the pilot stage.
Q2: How long is the product storage period, and what are the storage conditions?
A2: Store in a sealed environment at room temperature, with a shelf life of 6 months. Store in a dark place and avoid high-temperature exposure. Use it as soon as possible after opening to prevent premature reaction of the active groups.
Q3: Can it be compounded with leveling agents and defoamers?
A3: It is supported for compounding. It is recommended to conduct a small-scale test to verify compatibility. The combination ratio of different additives will affect the final surface smoothness and paint film state.


4. Assist in improving ink and coating quality, solving common surface defects in the industry
In UV ink and coating production, bubble, pinhole, stacking adhesion, and coating scratch resistance are long-standing problems that have troubled formulation engineers. IOTA 170 has excellent degassing effect, quickly releasing the air encapsulated in the system, reducing pinholes and blisters; after curing, it forms a stable protective layer, making printed products less prone to sticking when stacked, improving product yield, and helping radiation-curing products enhance surface quality and added value.