What Happens If Too Much Water-based Dispersant Is Added?
If too much water-based dispersant is added, it may have the following effects on coatings or inks:
Stability Issues: An excess of dispersant can easily lead to a decrease in the stability of inks or coatings, making them prone to sedimentation and coagulation.
Adhesion Problems: An excess of dispersant may result in poor adhesion of the ink film or coating, thereby affecting the print quality of the ink or the performance of the coating.
Sagging Issues: The overuse of dispersant may lead to sagging problems.
Therefore, when using water-based dispersants, it is necessary to add them according to the recommended dosage to avoid overuse. If too much is accidentally added, it is recommended to consult with relevant technical personnel or manufacturers for a solution.
Specific Manifestations When Too Much Water-based Dispersant Is Added:
- Decreased Dispersion Effect: The main function of the dispersant is to evenly disperse pigments or fillers in the medium. However, when the dispersant is in excess, it may not be able to effectively disperse the pigments or fillers, leading to a decrease in dispersion effect.
- Coating Performance Compromised: After adding too much water-based dispersant, it may negatively affect the performance of the coating. For example, the glossiness of the coating may be reduced, and properties such as weather resistance and water resistance may also be compromised.
- Sedimentation and Phase Separation: Excessive dispersant may cause pigments or fillers to sediment and separate in the paint, causing problems during the storage and use of the paint.
- Changes in Viscosity: The addition of dispersant will affect the viscosity of the paint. When the dispersant is in excess, it may lead to unstable paint viscosity, bringing difficulties to construction.
- Foaming Issues: Certain water-based dispersants may produce excessive foam when in excess, which can adversely affect the construction of the paint and the quality of the coating.
Please note that these manifestations may vary depending on the specific dispersant and paint system. If problems are encountered during use, it is recommended to consult with relevant technical personnel or manufacturers for professional advice.