CAS 7631-86-9 Silica For PET Film

What are the uses of silica Matting Agent in the PET film paint industry?

Silica matting agent is the key matting method for high-end matte paint. It is necessary to consider the particle size of matting

powder, the surface treatment effect of organic powder modifier, the porosity and transparency of matting powder and other

factors. What are the uses of matting powder in the coating industry?

1. The particle size of matting powder in the paint film.

The matting effect of matting powder in the coating. The matting powder needs to cause light diffusion on the surface of the

paint layer in the coating system to achieve a better matting effect. Therefore, it is best not to cut and disperse the matting

powder for a long time, otherwise it will damage the surface of the matting powder. Too much cutting particle size will become

too small, the smoother the paint layer, the more light reflection surface, and the worse the matting effect. Therefore, in the

process of making matting powder, the particle size is generally in the range of 5-20um.

2. The effect of powder modifier on the surface treatment of matting powder in the coating.

In the process of making matte powder, if it is not treated with powdered modified materials, it will absorb a lot of residual oil, have

a large tactile change, and easily cause hard deposits with insufficient clarity. Matting powder treated with powdered modified

materials has low residual oil absorption, small tactile change, high clarity, and good compatibility with epoxy resin (the epoxy resin

commonly used in matte powder in the coating industry is polyurethane adhesive, which not only has a good matte effect, but also can

improve the strength of paint adhesion, scratch resistance, etc.), even if the sedimentation is soft ground settlement, it will not affect the

matte effect of matte powder.

3. The effect of matte powder porosity on coating.

The surface structure of matte powder particles is similar to sponge, and the internal structure has high porosity. Particles with high

porosity are lighter, so the more particles under the enterprise quality, the higher the micro-surface roughness of the paint layer, the higher

the diffuse light generated, and the better the matte effect.

The above is an introduction to the uses of matting powder in the coatings industry. In the process of making matting powder, it is necessary

to consider whether the production process in the architectural coatings system meets the requirements and pH value. In addition to

considering the particle size, chemical surface treatment, porosity and clarity, it will also affect the application effect of the matting powder.

Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent,PET