HIGH REFLECTIVE INDEX GLASS BEADS
   
 
   
 

High reflective index glass beads are perfect retro-reflective materials. They are widely used for manufacturing reflective sheet materials for Road sign, and they are also used for reflecting cloth, billboard, screen, airport Runways, shining painting materials etc. May be considered as spherical lens and it can returns incoming light to the original light source when reflecting layer is set in its focus point. The position of focus point of the glass beads is relied on its reflective Index.

Shaped like perfect spheres with a smooth and shinning surface.
Remarkable strength, hardness and chemical stability. Reflective index to control its focus point. Uniform particle distribution. Made of Tio2, BaO glass, and their refractive index is approximately1.93 No lead, No harmful to human.

   
 
 
 
 
 
 
TYPE OF PRODUCTS
   
TYPE
SIZE
JHI-1
32~45
JHI-2
45~56
JHI-3
56~63
JHI-4
63~71
JHI-5
71~90
   
 
PHYSICAL PROPERTIES
   
HI INDEX GLASS BEADS
Hardness(Mohs)
> 5
Abrasion(%)
4.2
Refraction Index
1.93
Specific Gravity(20/20 )
2.6
Softing Point()
900
Resistance to Weather
No change
   
 
CHEMICAL COMPOSITION
   
SiO2
5 - 10%
Na2O+K2O
0 - 0.5%
CaO
0.5 - 3%
TiO2
0 - 0.5%
BaO
0 - 1%
Fe2O3
0 - 1%
TiO2
30 - 40%
BaO
40 - 48%
 
 
MILLING / DISPERSION / FILTRATION / LARGEBEADS ETC

 
  Milling / Dispersion / Filtration Glass Beads is a spherical glass which is manufactured through a kiln process with low alkaline glass.
Usually its diameter is 1.0-5.0 mm which is larger than the reflective beads used for road marking.

Because it is resistant to abrasion and chemical degradation and also non-polluting to the environment, this glass bead is used to filter or disperse paper stock, dyes, paints, foodstuffs, chemicals and medicines, and
also to pulverize lumps of pigment through mills.

Nowadays these so called(when it is used for street improvement) LARGE-BEADS are used for increasing the night-time visibility of traffic line.

The quality of glass beads can be classified into two categories :ordinary beads (soda lime) and highly intensified ones (E-glass).

The highly intensified beads are non-alkaline, and because of its hardness, it can last up to 3 times longer than ordinary glass beads.
 
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PHYSICAL PROPERTIES
   
 
A(Soda lime)Glass Beads
E-Glass Beads
Hardness(knoop)(kgf/)
425
540
Abrasion(%)
3.14
1.96
Specific Gravity(20/20)
2.52
2.62
Compressive Strength(N/)
16.64
21.51
Refraction Index
1.5-1.64
-
Specfic Heat(Cal/g)
0.81
1.92
Softening Point()
720
830-850
Thermal Counductivity(Kcal / m. hr.)
0.65
-
Thermal ExpansionCoefficient ()
85x10 -6
4x10 -6
Resistance to Weather
No Change
No Change
   
CHEMICAL ANALYSIS(%)
   
 
Chemical
Sio2
Ai2O3
CaO
MgO
TiO2
Na2O3,K2O
B2O3
Sodalime Glass Bead
70-73
0.8-1.0
7-12
1.0-4.5
-
13-15
-
E-Glass Beads
52-56
12-16
16-25
0-6
0-0.5
0-0.8
5-13
   
PRODUCTS TYPE
   
 
MILLING/ HI MILLING
TYPE
GLASSBEADS
UNIT=
MESH
SIZE
JM/JHM-20
840-1,190
20 - 14
JM/JHM-30
1,000 - 1,400
16 - 12
JM/JHM-40
1,410- 2,000
12 - 9
JM/JHM-50
1,680 - 2,380
10 - 8
JM/JHM-60
2,000 - 2,830
9 - 7
JM/JHM-70
2,380 - 3,360
8 - 6
JM/JHM-80
3,360 - 4,760
6 - 4
 
TYPE
SIZE(MESH)
JB-100
40~90 (170-325)
JB-200
75~150 (100-200)
JB-300
106~212 (70-140)
JB-400
150~250 (60-100)
JB-500
180~300 (50-80)
JB-600
250~425 (40-60)
JB-700
400~600 (20-40)
JM-10
600~800 (20-30)
   
  JM-SODALIME GLASS, JHM-E GLASS