Alro logo Alro Steel was established in 1948 by Al and Robert Glick. Today, Alro is comprised of Alro Steel, Alro Metals, Alro Plastics and Alro Metals Outlet.

Alro Plastics Product: Densetec HDPE Sign Board

Densetec Sign Board is manufactured by extruding one color on the inside and a contrasting color on the outside. The layers are combined while the material is still molten. The result is a homogenous sheet that is guaranteed not to delaminate, crack or chip. Densetec Sign Board is superior to other sign materials, which are separate layers of material laminated together.

Densetec Sign Board is easily routed or engraved using current CNC router technology. As the skin of the material is removed by the router, the inside color shows through and, voila, a sign is easily fabricated with minimum finishing requirements. Densetec Sign Board does not have to be painted because the color is embedded into the sheet. Densetec Sign Board's durable textured finish resists scratches and marring. Densetec Sign Board is UV stabilized to resist deterioration in harsh outdoor environments, making it the perfect signage material.


  • UV stabilized for outdoor applications
  • Great impact resistance
  • Won’t delaminate, splinter or crack
  • Non-stick surfaces prevent graffiti damage
  • Moisture resistant
  • Virtually maintenance free


  • Interior and Exterior signage
  • Environmental graphics
  • Playground and recreational equipment
  • Architectural elements