MRB HOLD - MATERIAL UNDER REVIEW

The last sign you’ll ever need.

Printed signs fade and fail—CNC-carved HDPE is permanent.

Precision CNC-carved from a .25” thick, sheet of solid Color Core HDPE, this is not a printed or laminated sign—it’s built to withstand indoor or outdoor industrial environments without peeling, fading, rusting, or rotting.

This MRB HOLD – MATERIAL UNDER REVIEW, ANSI-style Notice sign identifies nonconforming or suspect material that is pending evaluation by a Material Review Board. It prevents unintended use and supports formal quality control and disposition processes.

This sign has a BLUE background with WHITE inner core color, compliant with ANSI Z535 standards for the “NOTICE” category.

Key Features

ANSI-style Blue / White informational color scheme
CNC-carved text and graphics — no ink, vinyl, or overlays
Solid Color Core HDPE construction
Resistant to moisture, chemicals, and corrosion
Mounting holes included (quantity varies by size)

Available Sizes

10 × 14 inches (NOT-MRB-1014)
12 × 18 inches (NOT-MRB-1218

Typical Applications

Quarantine areas
Nonconforming material zones
Quality review areas
Receiving inspection

Compliance & Manufacturing Notes

Designed in accordance with ANSI Z535 visual communication principles
Supports regulated calibration and quality systems
Manufactured from Color Core HDPE using CNC machining
Non-laminated, non-printed construction for permanent contrast
Suitable for indoor and controlled outdoor environments

Final determination of regulatory suitability remains the responsibility of the facility safety or compliance authority.