Technical Data
|
Composition |
BaO-SiO 2-TiO 2 GLASS |
|
Refractive Index |
1.93±0.01 |
|
Specific Gravity |
4.1±0.2 g/cm3 |
|
Color |
White |
|
Form: |
Fine spheres powder |
|
Size |
75-90um;60-80um; 50-70um；40-60um; 25-40um;10-25um； (can be provided by specific request) |
|
Roundness |
≥95% |
|
Opacity |
≤1% |
|
Brightness
|
400-600 CPL for different type; The brightness of glass beads used in the reflective fabric meet the EN-471 standard . |
Package :
25kg / barrel (Volume: 31 cm x 18.5 cm), lined with two plastic bags .
Net Weight: 25kg/barrel Gross Weight: 26kg/barrel
40 barrels can be packed onto a pallet.
Storage :
Dry and sheltered
Usage:
ND1.93 glass bead is used for “ Exposed-Lens” type retro-reflective articles (e.g., open-type reflective sheets, reflective fabric. reflective tape, reflective yarn) and “Encapsulated-Lens” type retro-reflective articles (e.g., high intensity grade reflective sheet ). It c an also be used for reflective ink, paint and in the fields of personal security and protective products.
Solution of getting strong retro reflective:
a. Ink must be clear and transparent, Grey. Yellow. Red will be better.
b. Firstly ,print aluminum powder as foundation. Then print with the mixture of ink and glass bead.(Aluminum coated glass bead need not)
c. Make the glass bead on the paint surface as more as possible.(ND2.2 glass bead need not)