GM series high precision rare earth polishing powder is suitable for optical glass with abrasion degree between 100-200. It has the characteristics of fast cutting speed, high precision and easy cleaning.
(1) Using rare earth carbonate as raw material, the white polishing powder prepared by fluorination roasting can be used for optical glass processing.
(2) Average particle size 0.6-1.8 μ m. The maximum particle size is less than 8 μ m. It can meet the accuracy requirements of optical elements.
(3) High polishing precision and easy cleaning.
Type |
TREO |
CeO2% |
La2O3% |
D50μm |
D99μm |
Color |
GM-208 |
>94 |
62-75 |
<25 |
0.6-1.0 |
<6 |
White |
GM-108 |
>99 |
>99 |
/ |
0.6-1.0 |
<6 |
Yellow |
GM-212 |
>94 |
62-75 |
<25 |
1.0-1.4 |
<8 |
White |
GM-218 |
>94 |
62-75 |
<25 |
1.4-1.8 |
<10 |
White |
GM-318 |
>94 |
62-75 |
<25 |
1.4-1.8 |
<9 |
Red |
Recommended specific gravity: 1.03-1.1, determined according to nitrate material and process.
Applicable machine: plane high polishing machine or spherical pendulum machine
Applicable workpiece: spherical lens with abrasion degree of 100-200, and plane glass with high precision requirements, such as prism, master glass, etc.