الوصف

COSIMA MK***3 is a new generation of matting powder produced by a special process and used as a finishing agent for leather, which can give excellent fineness and haze to the leather coating and is especially suitable for the surface finishing of PVC leather, PU leather and genuine leather.
Chemical composition:Silicon Dioxide
Techinical Data
Oil absorption value DPB(g/**0g): **0～**0                               
SIO2 content (dry basis): ≥*9%
Porosity: 1.0～1.2ml/g
Average particle size (µm) 2.0～2.5
Whiteness: ≥*5
PH value (5% water suspension): 6～7
Loss on drying：＜4%
Loss on burning:＜4%
Surface treatment: special treatment  
Characteristics and advantages
COSIMA MK***3 can be widely used as surface treatment agent for PU leather, PVC leather and leather surface with the following characteristics.
1, High haze
Strict control of particle size distribution and special surface treatment can give leather coating better haze, which can better show the color of leather itself and make the color more vivid.
2, Good dispersion, no white spots
MK***3 is very easy to disperse, only need to use the general dispersing machine after ****0 minutes of high-speed dispersion, can achieve good matting effect. There is no white spot in the coating.