Silica Dioxide White Powder Paint Matting Agent Compare to SY-7000 Use For Coating Application
Description
In many coating applications, there is a preference in the market for matte finishes. Different methods and matting agents exist for indoor and outdoor coatings.
Compared to silica-gel matting agents, modified silica possesses a different particle size, particle size distribution, in the pore volume. Hydrothermal matting agents are different in particle size and distribution. We can also find untreated and treated materials.
Features
· Silicas have a relatively high efficiency in terms of matting power
· When used in higher concentration, an increase in viscosity could be observed
· During storage they tend to build up sediment, this is particularly the case with untreated silicas. To avoid this tendency combinations of silicas and wax or pyrogenic silicas are used
Chemical Data
| Item Type |
HF-620 |
HF-620L |
HF-630 |
HF-630L |
HF-650L |
| Content of sio2(dry basis) %, |
≥99.0 |
≥99.0 |
≥99.0 |
≥99.0 |
≥99.0 |
| Porosity ml/g |
1,8-2.0 |
1.8-2.0 |
1.8-2.0 |
1.8-2.0 |
1.8-2.0 |
| Oil absorption, g/100g , g/100g |
270-320 |
270-320 |
270-320 |
270-320 |
270-320 |
| Particle Size, um(Malvent,D50) |
4-4.5 |
4-4.5 |
5-5.5 |
5-5.5 |
6-7 |
| Loss on drying(105℃,2Hrs) |
≤5.0 |
≤5.0 |
≤5.0 |
≤5.0 |
≤5.0 |
| Ignition loss(1000℃,2Hrs) |
≤7.0 |
≤7.0 |
≤7.0 |
≤7.0 |
≤7.0 |
| Whiteness |
≥90.0 |
≥90.0 |
≥90.0 |
≥90.0 |
≥90.0 |
| PH(5% Liquor) |
6-7 |
6-7 |
6-7 |
6-7 |
6-7 |
| Surface Treatment |
NONE |
Organic |
NONE |
Organic |
Organic |
Paint System:
· The binder system
· The method of applying the paint
· The film layer thickness, and
· Drying conditions
