Specifications for Traffic Beads for Waterborne Traffic Paints
1. Scope
This specification covers glass beads to be gravity dropped upon 8-25 mils (1.4-4.4 M2 /L, 57-179 ft2 /gal) of
waterborne traffic paint. These beads shall be applied at a rate of 0.67-1.33 Kg/L or (9-12 lb/gal) of traffic
Applicable Documents:
2.1 The following documents, of the issue as stated on date of invitation to bid or request for proposal,
form a part of this specification to the extent specified herein:
2.1.1 Federal Specifications
TT-B-1325 – Beads (Glass Spheres) Retro reflective
2.1.2 Nevada Specifications
Nevada Department of Transportation Standard Specifications for Road and Bridge
Construction 2014 Edition or latest Edition and applicable Pull Sheets.
2.2 Other Publications – The following documents form a part of this description to the extent specified
herein. Unless a specific issue is identified, the issue in effect on date for invitation for bids or
request for proposal shall apply.
2.2.1 American Society for Testing and Materials (ASTM) Standards:
D 1155 – Standard Test Method for Roundness of Glass Spheres
D 1214 – Standard Test Method for Sieve Analysis of Glass Spheres

Post time: Aug-13-2021