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3M™ Diamond Grade™ DG³ Reflective Sign Sheeting

  • Commitment to achieving the best possible traffic safety outcomes starts with 3M™ Diamond Grade™ DG³ Sheeting. It provides brightness and visibility with the highest optical efficiency by returning more light to drivers in a range of vehicle types.

3M Diamond Grade Reflective Sign Sheeting
Maximum total reflected light
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DG³ sheeting has twice the brightness of lower-grade sign sheeting.

  • 3M Diamond Grade DG3 sheeting is twice as bright

    3M’s “full-cube” microprisms greatly increase the brightness of road signs for drivers across a range of vehicle types and sign geometries. Even signs in the most disadvantaged locations perform better with Diamond Grade DG³ sheeting.

    To learn more about the physics of retroreflectivity, check out What is Retroreflectivity & Why is it Important?

Brighter signs, safer roads

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

    Brighter signs give drivers more time to react

    During the day, and especially at night, DG³ Reflective Sheeting can make a difference by making signage brighter and more visible, giving drivers more time to react.

    Brighter sheeting is more visible to drivers and has been shown to increase safety by cutting nighttime accidents by 25 to 46 percent.

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

    Can reduce road lighting costs

    “With the highest brightness and retroreflectivity ratings in the industry, Diamond Grade DG³ can safely lower installed road lighting costs by up to $150,000 per km, and annual lighting maintenance by up to $15,000 per km.”

    — The Handbook of Road Safety Measures, 2nd Edition. Rune Elvik, 2009.

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

    Long-lasting material requires less maintenance cost

    3M Diamond Grade DG³ sheeting is one of the most durable signage materials, with an industry-leading expected life of 12 years. DG³ is better, safer and lasts longer than other retroreflective sheeting, leading to lower costs and maintenance over time.


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With its industry-leading life expectancy of 12 years, Diamond Grade DG³ Series 4000 provides protection longer than lower-grade sign sheeting. It may also require less maintenance and reduce energy expenses.

  • Diamond Grade DG3 Series 4000 on a stop sign

    Diamond Grade DG³ Series 4000

    3M™ Diamond Grade™ DG³ Reflective Sheeting Series 4000 offers superior reflectivity at short and long distances. Brighter sheeting is more visible to drivers and has been shown to increase safety by cutting nighttime accidents by 25 to 46 percent.


See for yourself: DG³ Sheeting Demonstration Videos

  • 3M Diamond Grade Headlight Demonstration

    Headlight Demonstration

    See how much light reflects off a variety of 3M sign sheeting materials and how that difference is see by drivers.

  • 3M Diamond Grade Vehicle Size Demonstration

    Vehicle Size Demonstration

    In this demonstration, you'll see how elevated seating positions impact sign visibility and how higher-performing sign sheeting can help.

  • 3M Diamond Grade Visibility Demonstration

    Visibility in all lighting conditions

    This demonstration shows how 3M's microprismatic fluorescent sheeting can significantly improve critical sign visibility all times of the day.

  • Three Stop signs of different brightness. The sign on left is darkest and uses 3M Engineer Grade sheeting, the middle is brighter and uses 3M High Intensity Prismatic sheeting, and the right is brightest and uses 3M Diamond Grade DG3 sheeting.

    Differences in sign sheeting

    The demonstration in this video shows how 3M DG³ Reflective Sheeting compares to Engineer Grade sheeting and High Intensity Prismatic Sheeting.


Find product specifications, solutions that meet your requirements, where to buy locations, and more – just ask us.

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