Description
Hempel’s Glass Beads TT-B-1325D Type III are retro-reflective glass beads which contains minimum 80% true spheres and conform to the TTB1325D Type III specification. Resistant to acid, calcium chloride, sodium sulfide, water and have optimum reflection even in the most difficult lighting and visibility. This high index glass beads is the best choice for marking sites like airstrips or helicopter landing pods.
