Onway Abrasive- Glass Beads for Blasting

Glass Beads http://www.onway.co/ProductList.asp?SortID=60 with the quality of clean, transparent, no bubbles and impurity. Its hardness and spherical form is suitable to remove metal oxides with no damaging of the treated surface. It also does not react chemically with other material so that it widely used in blasting, polishing, grinding etc.

Here is the chemical and physical specification of glass beads.

Chemical Analysis		Physical Properties
SiO2	≥65.0%	Bulk Density	1.5g/cm3
Na2O	≤14.0%	Real Density	2.5g/cm3
CaO	≤8.0%	Mohs Hardness	6-7
MgO	≥2.5%	HRC Hardness	46
Al2O3	0.5-2.0%	Roundness	≥92.5%
Fe2O3	≥0.15%	Magnetic	≤0.1%
Other	2.0%	Bubble	≤0.1%

Available Size

Grit Size	Mesh	Size µm
30#	20-40	850-425
40#	30-40	600-425
60#	40-60	425-300
80#	60-100	300-150
100#	70-140	212-106
120#	100-140	150-106
150#	100-200	150-75
180#	140-200	106-75
220#	140-270	106-53
280#	200-325	75-45

Other special specification could be suplied as required.