Silica Matting Agent as White Powder CAS No.: 7631-86-9 Used For Leather Coatings
Description
Silica Matting Agent specialized used for the PU/PVC matte finish leather coating. It is a micronized precipitated silica matting agent for both solvent-based and water-based system. It provides a medium-high viscosity with a pleasant matte finish. They resist dripping and offer excellent adhesion and high flexibility with wet-dry abrasion resistance.
Characters
1, Stable Chemical Property: As the matting agent is with high purity and low impurity, its chemical property is very stable.
2, Excellent Dispersion: The matting agent can easily disperse in both solvent and aqueous solution, the average high-speed pulsator with 10-20 M/S of the line speed, after 10 minutes can be ok.
3, High Matting Efficiency: It can reduce the gloss for the surface of leather, provide the better matte finish.
Chemical Data
| Item Type | HF-640A |
| Content of sio2(dry basis) %, | ≥99.0 |
| Porosity ml/g | 1.3-1.4 |
| Oil absorption, g/100g , g/100g | 260-300 |
| Particle Size, um(Malvent,D50) | 3.5-4.5 |
| Loss on drying(105℃,2Hrs) | ≤5.0 |
| Ignition loss(1000℃,2Hrs) | ≤6.0 |
| Whiteness | ≥90.0 |
| PH(5% Liquor) | 6-7 |
| Surface Treatment | None |
Application
Leather surface coating, PU/PVC matte finish leather coating, solvent-based or water-based leather surface coating.
Strengths
We are the largest production of silica gel in China, and focus on Paint/Coating Market about 25 Years. We have strict control of the batch quality, the physical index and performance are strictly tested before delivery. Will ensure that stable products of different batch.
