Organoclay for coatings

Whether in water-based or oil-based systems, it is necessary to select the appropriate type of organic bentonite Organoclay for coatings based on the formulation and then determine the appropriate addition amount through testing. If the addition amount is too low, it will fail to meet performance requirements. Conversely, if the addition amount is too high, it may result in abnormal viscosity, and in some cases, even have the opposite effect on performance. When storing the product, we recommend keeping it in a dry, moisture-proof location.

When using organic bentonite, we recommend pre-dispersing it with an oil-based solvent system, which involves performing some pre-gel treatment to achieve better dispersion. During this process, we suggest adding some activators, such as methanol or ethanol, and then incorporating the gel structure into the system to avoid uneven dispersion caused by direct addition, which could ultimately affect performance.

The primary purpose of using organic bentonite is to enhance thickening, suspension, and anti-settling properties, improve the rheological properties of aqueous systems, enhance storage stability, and reduce pigment settling and phase separation. Typically, organic bentonite is slowly added to water under high-speed stirring, followed by the addition of other additives to achieve compatibility of the entire formulation.

When using organic bentonite, we recommend using polar activators such as methanol, ethanol, or propylene carbonate. In some cases, adding a certain amount of water can also achieve the same activating effect.