Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of silica in coating in China. With abundant experience, we warmly welcome you to buy high quality products made in China here from our factory. Contact us for more details.
Silica in Coating as Matting Agent
| Material: | Silica powder, silicon dioxide ,precipitated silica superfine powder for coating |
|---|---|
| Application: | Paint and pigment |
| Certification: | ISO |
| Transport Package: | Valve Plastic Woven Bag, Pallet |
| Specification: | 10kg/bag, 560kgs/pallets |
| Samples: |
for free |
|---|
Silicon dioxide, also known as silica, has variable properties and can be added to coatings in order to eliminate droplet sedimentation. By adding a small amount of silicon dioxide to coatings, the coating can maintain its consistency without droplets or wrinkles, even when applied in vertical surfaces at 500g/m2 in unsaturated polyester coatings. The concentration of silicon dioxide required for this improvement ranges from 0.5 to 2.
By adding silicon dioxide to coatings, sedimentation can be prevented while improving adhesion, dye absorption and dispersion. As a filler for emulsion coatings, it can enhance heat stability. In order to meet the requirements of coatings and ink matting agents, a special matting agent product has been developed and manufactured abroad. Nitrocellulose varnish and similar coatings containing sedimentary silicon dioxide matting agents can improve the non-sedimentation properties of the coating, making the coating easy to disperse and at a low thickening effect. The suspension of the coating is good and has excellent matting performance, high transparency, and good wear resistance.
When 0.5% of silicon dioxide is added to printing ink, it has a good printing effect, can eliminate the penetration of undispersed ink, and improve the washability and color gloss of the printed material.
Silica, when used in coatings, can have numerous positive effects such as an increase in the durability, adhesion, absorption, and stability of coatings. By using silica in coatings, the quality and reliability of the coatings can be enhanced, leading to a more positive outcome for the users.
Specification:
JS-280
|
Test Methods |
Properties |
Units |
Target Values (Spec Limits) |
Actual Values |
|
HG/T3065-2008 |
Loss on drying (2Hrs,105℃)加热减量 |
% |
Max.5.5 |
4.85 |
|
HG/T3066-2008 |
Ignition loss 1000℃ 灼烧减量 |
% |
Max.7.0 |
3.96 |
|
HG/T3072-2008 |
DBP absorption value DBP吸收值 |
cm3/g |
3.1-3.5 |
3.20 |
|
HG/T3067-2008 |
pH value (10%aqueous suspension) pH值 |
- |
6.0-8.0 |
6.77 |
|
HG/T3062-2008 |
SiO2 (Dry Basis) 二氧化硅(干基) |
% |
Min.98 |
98.1 |
|
HG/T3073-1999 |
BET specific surface area BET比表面积 |
m2/g |
260-300 |
282 |
|
|
Soluble salt (Na2SO4) 可溶性盐 |
% |
Max.0.5 |
0.26 |
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