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: Lab 850 Red Pattern Board (High Density)

Lab 850

Size and Availability:

Sheet / Slab stock
- Thickness: 2”thk, 3”thk and 4”thk
- Sheet sizes: 20” x 60” and 24” x 60”
- Sheet color: Dark Red

Lab 850  Lab 850
Lab 850, also known as red pattern board, is a 72 – 74 lb. high density sheet/slab.

Red pattern board, also called foundry board, is a proven material for medium-volume foundry patterns, core boxes, grating and risers. Red Pattern board is a high density board that is also used for metal forming, stamping and stretch press dies.


  • Ease of machining
  • Great dimensional stability
  • Easily bonded and repaired
  • Easy surface finishing
  • Good temperature resistance


  • Precise checking fixtures
  • Large & small master molds
  • Prototypes
  • Patterns and molds
  • Stretch press dies
  • Nesting fixtures
  • Metal forming