Alro logo Alro Steel was established in 1948 by Al and Robert Glick and has grown to include Alro Plastics, Alro Industrial Supply and Alro Metals Outlet.

Alro Plastics Product: PHENOLIC G7 (Glass Epoxy)

Size and Availability:

Sheet / Slab stock
- Thickness: 1/16”thk to 2”thk standard
- Sheet sizes: 48”x 120”, 48”x 96”, 48”x 48”, 36”x 48”

Rod / Solid Rounds
- Diameters: 1/16” to 2-1/4”Dia.
- Lengths: 2 ft to 4 ft standard lengths

Tubing / Hollow Rounds
- Diameters: 3/16”OD x 1/8”ID up to 2.50”OD x 1.50”ID
- Lengths: 2 ft to 4 ft standard lengths

Phenolic G-7 is a continuous glass fabric laminated with a silicone resin. Grade G-7 is unequalled for high heat and arc resistance applications, and where good mechanical and electrical properties must be exhibited in humid conditions in excess of 500°F.

Phenolic G-7 complies with the requirements of MIL-1-24768/17, Type GSG


  • Extremely high mechanical strength
  • Low water absorption
  • Superior electrical characteristics


  • Terminal boards
  • Washers
  • Sleeves
  • Structural components