White powder form superfine silica, which is made by specific sol-gel method process. It can be dissolved by NaOH, HF. Other kinds of acid, water and organic solvents cannot dissolve the product. Resistance to high temperature, no combustion, good insulation, odourless and good extinction properties.
ZC770 Silica Matting Agent in Coating
High Surface Area, High Pore Volume, Good Matting
Product Name
White Carbon Black, Amorphous Precipitated Silica, Precipitated Silica, White Carbon, Flatting Agent, Matting Agents, Silica Matting Agent
Chemical Properties
Matting agent ZC770 is kind of precipitated silica, White powder form superfine silica, which is made by specific sol-gel method process.
Matting agent ZC-770 can be dissolved by NaOH, HF. Other kinds of acid, water and organic solvents cannot dissolve the product.
Specifications
Items |
Specification |
Appearance |
White Powder |
BET specific surface area m2/g |
320-400 |
SiO2 % Min |
99 |
Heating Loss at 105°C 2h% Max |
8.0 |
Ignition Loss at 1000°C 2h% Max |
7.0 |
pH Value(5% aqueous suspension) |
5.0-7.0 |
DBP absorption Value cm³/g |
2.0-3.5 |
Total Fe mg/kg Max | 200 |
Pore volume cm³/g |
1.8-2.2 |
Grind µm Max |
36 |
Medium Size(D50)µm |
7.0-9.0 |
Whiteness Min |
94 |
Application
Matting agent ZC770 is an untreated fine-grained precipitated silica with 4-6 um particle size. This efficient matting agent is especially suitable for pigmented systems.
Matting agent ZC770 is often used in can and coil coatings, decorative coatings, wood coatings and industrial coatings such as polyurethane varnishes, air drying and oven-dried industrial coatings and DIY paints etc.
Adding Matting agent ZC770 will improve the viscosity of coatings and paints, thus enhancing the convenience in using these materials.
Matting agent ZC770 is especially used for color inkjet paper, ink and rolled material. It has large surface area, large pore volume, high transparency, good extinction, easily dispersed, suitable for color ink-jet paper as absorption agent.