SS-410L Powder 7631-86-9 For Ink

How to use silica Matting Agent to arrive excellent matte effect?

As people's living standards continue to improve, people need coatings with different glosses. High-grade matte coatings, with their natural,

high-grade and elegant appearance, have attracted a large number of consumers. How to select the appropriate matting agent according to

the characteristics of the prepared coating to achieve the desired effect has become the main problem for coating formulators.

a. Mix powder coatings with different curing speeds by dry mixing, then the gloss of the resulting coating film will be significantly reduced,

which will play a matting role. Since the powder coating with high reaction activity cures quickly, the leveling and reaction of the slower curing

resin in the continuous phase are hindered, and the final cured coating film loses its gloss. Although this method is effective, it increases the

manufacturing process and cost.

b. Add thermoplastic resin. Adding cellulose acetate to epoxy powder coatings and adding fine powdered low molecular weight polyethylene and

polypropylene resins to polyester powder coatings can obtain matting powder coatings. The gloss of the coating film is affected by manufacturing

conditions. Because the addition of thermoplastic resin will affect the storage stability of the powder coating, the addition amount is limited to 2-3%

of the resin amount.

c. Use a special Curing Agent with matting effect

d. Add fillers with matting effect. Adding fillers such as ultrafine silica and talcum powder can significantly reduce the gloss. In particular, the particle

size of the filler has a great influence on the gloss of the coating. The larger the particle size, the lower the gloss. It should be noted that increasing

the amount of filler will reduce the flatness and mechanical strength of the coating. In addition, adding waxy substances such as polyethylene paraffin

and hydrogenated castor oil can also produce matting coatings.

Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent