Introduction:
Silica dioxide, also known as silicon dioxide (SiO2), is commonly used in water-based primer paints for several purposes.
Here's how it is typically utilized:
Matting Agent: Silica dioxide can be employed as a matting agent in water-based primer paints to reduce glossiness and
achieve a matte or satin finish on the surface. Fine particles of silica dioxide scatter light, resulting in a less reflective
appearance.
Reinforcement: Silica dioxide nanoparticles can act as reinforcing fillers in water-based primer paints, enhancing mechanical
properties such as hardness, adhesion, and abrasion resistance. This reinforcement improves the durability and longevity of
the primer coating.
Thickening Agent: Silica dioxide can serve as a thickening agent in water-based primer formulations, helping to control viscosity
and improve application properties such as sag resistance and film build. Controlled addition of silica dioxide particles ensures
proper film thickness and uniform coverage.
Anti-settling Agent: Silica dioxide particles can prevent settling or sedimentation of pigments and other additives in water-based
primer paints, ensuring stability and homogeneity of the formulation during storage and application.
Surface Modification: Surface-modified silica dioxide particles can enhance the wetting and adhesion properties of water-based
primer paints, improving substrate compatibility and coating performance on various surfaces.
Improved Opacity: Silica dioxide can contribute to the opacity of water-based primer paints by scattering and diffusing light, thereby improving hiding power and coverage over underlying surfaces.
Enhanced Dry Film Properties: Incorporating silica dioxide in water-based primer paints can improve dry film properties such as hardness, flexibility, and chemical resistance, resulting in a more durable and protective coating.
Environmental Benefits: Water-based primer paints formulated with silica dioxide offer environmental benefits such as low VOC
(volatile organic compound) content and reduced odor, making them safer and more eco-friendly for indoor applications.
When selecting silica dioxide for use in water-based primer paints, it's essential to consider factors such as particle size, surface treatment, dispersibility, and compatibility with other formulation components. Conducting compatibility testing and evaluating the performance of the primer paint formulation is crucial to ensure that the desired properties are achieved consistently in the final product.
Technical Data
| Item | SS-901 | Brand | SKYSIL |
| Content of SiO2,(dry basis) %≥ | 99 | Whiteness | ≥90.0 |
| Porosity ml/g | 1.8-2.0 | Particle Size(Malvent),um | 4.5-5.0 |
| Loss on drying (105℃,2Hrs),% | ≤5.0 | PH | 6.0-7.0 |
| Ignition Loss(1000℃,2Hrs),% | ≤11.0 | Oil Absorption g/100g | 230-280 |
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
