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Why upgrade to 3M™ Diamond Grade™ DG³ Sheeting?

The difference between High Intensity Prismatic and Diamond Grade™ reflective sheeting.

  • Brighter Signs, Safer Roads. During the day, and especially at night, 3M Diamond Grade DG³ Reflective Sheeting can make a difference by making signage brighter and more visible, giving drivers more time to react. Let’s compare.

    High Intensity Prismatic Sheeting meets middle grade performance standards and ASTM D4956 Type IV. This reflective sheeting uses polycarbonate cube corner technology and is often used for reflective traffic and road signs.

    Diamond Grade reflective sheeting (DG3) meets ASTM D4956 Type XI. This highly reflective sheeting uses 100% efficient full-cube prismatic technology that reflects, almost twice the amount of light back to its source as High Intensity Prismatic sheeting.

  • *Warranty on fluorescent color is up to 10 years and may vary by location. Check with your 3M representative for complete warranty information.
A calculator rests on a table.

Safety, value and durability.

See why it may cost less than you think and save you money in the long run when you upgrade your signs to our 3M™ Diamond Grade™ DG³ Reflective Sheeting.

Why Upgrade to 3M™ Diamond Grade™ DG³?

  • A family crosses the street near a pedestrian crossing sign. The road sign is highly visible to protect pedestrians.
    Safer roads.

    According to one study, over a three to six-year period, crash numbers dropped by 25 to 46 percent where brighter signs, like those with DG3 sheeting, were installed.¹

  • A stop sign reflects brightly against a backdrop of nighttime road traffic.

    12-year life expectancy backed by our 3M warranty.

  • A large road sign is visible from a high angle above a busy highway, directing rush-hour drivers to an exit.
    Broad observation angles.

    Full cube technology reflect light at broad observations angle, helping drivers in all vehicle sizes see your sign.

Explore the products

Find out more about product details, specifications, and applications for 3M™ High Intensity Prismatic Reflective Sheeting Series 3930 and 3M™ Diamond Grade™ DG³ Reflective Sheeting Series 4000.

See for yourself

Our stop sign visibility demo shows how DG3 compares to other grades of sign sheeting.

Contact Us


  • ¹Ripley, D., Howard R. Green Company, ITE AB04H313.