Glass Beads

Glass beads are manufactured from lead-free, soda lime-type glass, containing no free silica that is made into preformed ball shapes. Glass beads produce a much smoother and brighter finish than angular abrasives. Glass beads can be recycled approximately 30 times. Chemically inert and environmentally friendly, glass beads are an acceptable method of metal cleaning or surface finishing when properly controlled.

Glass Bead Blasting

Glass bead blasting produces a clean, bright, satin finish, without dimensional change of the parts. Its application include used in blasting cabinets for honing, polishing, peening, blending, finishing, removing light burrs and cleaning most light foreign matter. For delicate thin-walled parts and thin welds, peening with glass bead abrasive material provides the right balance of stress relief without over-stressing and causing damage.

Specifications
Size	Micron Range
No 1	1 - 45
No 2	45 - 90
No 3	53 - 106
No 4	75 - 150
No 5	106 - 212
No 6	150 - 250
No 7	180 - 300
No 8	250 - 425
No 9	425 - 850
No 10	800 - 1200

Typical Chemical Analysis
SiO2	72.5%
Al2O3	0.4%
CaO	9.8%
MgO	3.3%
Na2O	13.7%
K2O	0.1%
FeO + Fe2O3	0.2%
Physical Properties
Specific Gravity	2.45 -2.50
Hardness	5.5 Moh

Glass Bead Specification
Mesh	Size 1	Size 2	Size 3	Size 4	Size 5	Size 6	Size 7	Size 8	Size 9	Size 10	Size 11	Size 12	Size 13
10	0
12	0-5	0
14	85-100	0-5	0
20	95-100	85-100	0-5	0
30		95-100	85-100	0-5	0
40			95-100	85-100	0-5	0
50				95-100	85-100	0-5	0
60					95-100		0-5	0
70						85-100		0-5	0
80						95-100	85-100		0-5	0
100							95-100	85-100		0-5	0
120								95-100	85-100		0-5	0
140									95-100			0-5	0
170										85-100			0
200										95-100	85-100
230											95-100	85-100
325												95-100	85-100