Drop-On Glass Beads For Pavement Markings

Physical & Chemical Characteristics

TESTS UNIT STANDARD
Appearance - Colorless
Specific Gravity g/cm3 2.4 - 2.6
Refractive Index - ≥ 1.5
Spherical beads % ≥ 70
Heavy Metals*
Arsenic ppm < 200
Lead ppm < 200
Antimony ppm < 200
* ITS USA can also meet Canadian Heavy Metals requirement.

Grain Distribution

(μm) TYPE 0 TYPE I TYPE II TYPE III TYPE IV TYPE V
2350 - - - - - 100
2000 - - - - 100 95-100
1700 - - - 100 95-100 80-95
1400 - - - 95-100 80-95 10-40
1180 - 100 100 80-95 10-40 0-5
1000 - - - 10-40 0-5 0-2
850 - 95-100 90-100 0-5 0-2 -
710 - - - 0-2 - -
600 100 75-95 50-75 - - -
425 90-100 - 15-45 - - -
300 50-75 15-35 0-15 - - -
180 0-5 - 0-5 - - -
150 - 0-5 - - - -