The Baltimore County, Maryland, Purchasing Division is seeking bids for Glass Beads for Reflective Road Marking, Term Agreement. The contract term will be for one year, with the option to renew for up to four additional one-year periods. The contract will cover the purchase of glass beads for use in traffic paints, with estimated annual usage quantities provided for various jurisdictions, including Anne Arundel County, Baltimore City, Baltimore County, Carroll County, Harford County, and Howard County. The glass beads must meet specific requirements, including gradation, roundness, crushing resistance, refractive index, and moisture resistance flow characteristics.
• The glass beads must be transparent, clear, colorless, smooth, and spherically shaped, free from milkiness, pits, or excessive air bubbles.
• The beads must meet the gradation requirement for Type 1 as given in Table 1.
• The beads must have a minimum of 70 percent spheres.
• The beads must have a minimum refractive index of 1.50.
• The beads must not absorb moisture in storage and must remain free of lumps and dusters.
• The beads must flow freely from dispensing equipment.