High quality 65% ZrSiO4 Zirconium Silicate / zircon powder / zircon flour for Ceramics Industry



Product Description Of Zirconium Silicate
Zirconium silicate is a non-toxic, odorless white or off-white powder. The raw material is natural high-purity zircon sand concentrate, which is then processed through superfine grinding, iron removal, titanium processing, and surface modification treatment. Zirconium silicate has a high refractive index of 1.93-2.01 and stable chemical performance. It is a high quality and low price opacifier for opacification. It is widely used in the production of various building ceramics, sanitary ceramics, daily ceramics and first-class handicraft ceramics. Zirconium silicate has been widely used in ceramic production because of its good chemical stability, so it is not affected by the burning atmosphere of ceramic, and can improve the binding performance of ceramic glaze significantly and improve the hardness of ceramic glaze. Zirconium silicate has been further applied in the production of color picture tube, emulsified glass and enamel glaze in the glass industry.
Product Feature of Zirconium Silicatezirconium silicate has high refractive index, good chemical stability and high temperature resistance
Chemical Analysis Percentage Parameter Result
ZrO2 66±2% Mesh (+200)
SiO2 33±1% Density 1 %max
TiO2 0.12%max Moisture 0.50 %
Fe2O3 0.1% max After Burn White
CaO Trace Lightness (L) 88.86 %
Zirconium Silicate Physical properties
Specific Gravity | 4.69 |
Melting Point | 2500°C |
Refractive Index | 1.97 |
Mohs Hardness | 7.5 |
Thermal Expansion Coefficient | 4.2*10-6 |
Apprearance | White or off white powder |
2.Zirconium Silicate Chemical properties
Item | RS65 | RS64.5 | RS63.5 |
ZrO2+HfO2 | 65.0 min | 64.5 min | 63.5 min |
Fe2O2 | 0. 06 max | 0. 08 max | 0. 12 max |
Ti02 | 0.10 max | 0.12 max | 0.18 max |
3.Zirconium Silicate Product standard
Type | Average mesh | Application |
RS-1.0 | D50≤1.0um | High-grade sanitary porcelain High-grade daily-use porcelain High-grade crystal brick |
RS-1.2 | D50≤1.2um | |
RS-1.5 | D50≤1.5um | Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc. |
RS-2.0 | D50≤2.0um |

1.Building ceramics, sanitary ceramics, daily-use ceramics, special ceramics, etc.(High refractive index 1.93-2.01,Chemical stability,It is an excellent and inexpensive opacifying agent,It is an excellent and inexpensive opacifying agent,In the processing and production of ceramic glaze, the scope of use is wide and the amount of use is large.
2.Refractory materials and products, glass kiln zirconium ramming material, castable, spray coating, etc. (zirconium silicate melting point is very high :2500ºC
3.TV industry color kinescope, glass industry emulsified glass, enamel glaze production
4.Plastics industry: used as fillers requiring stability, heat resistance and chemical erosion resistance


Every possible precaution is taken to ensure our products in prime condition when reach customers around the world.


We are a professional manufacturer of zirconium silicate. We have advanced fully automatic production lines and professional quality testing equipment to ensure the quality of our products. Our company has 25 years of foreign trade export experience
Rongsheng group insists on pursuing the management idea of "honest, courtesy, innovation and professionalism" as the purpose,taking the "low price for better quality" as the foundation of enterprise development and creating "Rongsheng Brand" as the enterprise strategic goal. And Rongsheng provides satisfying, timely and efficient service for customers based on scientific management process, complete customer information management system and abundant products types.
Contact Us To Get The Lowest Price !!!