How can water-based multifunctional paint achieve super strong adhesion and never fall off and crack?
Publish Time: 2025-03-18
To achieve super strong adhesion and never fall off and crack, water-based multifunctional paint needs to be considered comprehensively from multiple aspects such as the performance of the paint itself, formula design, construction process and substrate treatment.
1. Performance of the paint itself
Selection of resin: Select water-based resin with excellent wetting fluidity and smaller particle size, which helps the paint to form a closer contact with the substrate and improve adhesion. The resin should contain special anchoring groups and have relatively low cohesion, and form excellent adhesion through the linking effect of special groups.
Addition of functional additives: Add adhesion promoters, which form adhesion through special chemical structures and can significantly improve the adhesion of the paint. Select a suitable wetting agent to ensure that the paint can effectively and well wet the substrate, and increase the contact area and adhesion between the coating and the substrate.
2. Formula design
Balance cohesion and adhesion: When designing the formula, it is necessary to balance the cohesion and adhesion of the paint. Excessive cohesion may increase the internal stress of the coating and affect the adhesion; while excessive adhesion may lead to excessive interface strength between the coating and the substrate, which is prone to damage at the interface.
Optimize the coating thickness: As the coating thickness increases, its cohesion also increases, while the adhesion may remain unchanged. Therefore, when designing the formula, it is necessary to optimize the coating thickness to ensure the balance between cohesion and adhesion.
3. Construction process
Substrate treatment: The cleanliness and roughness of the substrate have an important influence on the adhesion of the coating. Therefore, before construction, the substrate needs to be thoroughly cleaned and properly polished to increase the roughness of the substrate and improve the contact area and adhesion between the coating and the substrate.
Coating method: Choose a suitable coating method, such as spraying, roller coating or brushing, to ensure that the coating can be evenly and fully coated on the substrate. At the same time, pay attention to controlling the coating thickness and coating speed to avoid the situation where the coating is too thick or too thin.
Curing conditions: Curing is the key process for the coating to form a coating film and produce adhesion. Therefore, it is necessary to strictly control the curing temperature and time to ensure that the coating can be fully cured and form a stable coating film.
4. Long-term performance guarantee
Weather resistance: Select coating formulas and resin materials with excellent weather resistance to ensure that the coating can resist the influence of harsh environments such as ultraviolet rays, high temperature, and low temperature during long-term use, and maintain the integrity and adhesion of the coating film.
Corrosion resistance: Add anti-corrosion agents to the formula or use resin materials with anti-corrosion functions to improve the coating's resistance to corrosive media such as acids, alkalis, and salts, and extend the service life of the coating film.
In summary, to achieve the super strong adhesion of water-based multifunctional paint and achieve the effect of never falling off and cracking, it is necessary to comprehensively consider and optimize the coating's own performance, formula design, construction process, and long-term performance guarantee. At the same time, customized solutions are also required according to specific application scenarios and needs.
