Proven Performance in Real-World Conditions

Backed by decades of field data and independent testing, das curb markers and adhesives are engineered to withstand extreme environments, heavy traffic, and long-term exposure.

Marker Test Results

In addition to testing provided by independent labs; das has continuously run tests since 1983, subjecting the das Curb Marker and das Curb Marker Adhesives to a variety of extreme conditions. We also have performance information, gathered over the years from our customers’ field experience.

Two yellow utility curb markers on concrete

Duracast Style Installation 1990

2 ½” on rolled curb

Two yellow curb markers embedded in concrete

Results after 13 years

Yellow natural gas pipeline warning marker

NW Natural 9 Year Exposure

Duracast Reflective 4” (Customer submitted )

Green sewer and red power utility markers

Standard Style 18 Year Exposure

Non-Reflective Sewer and Reflective
Power on rolled curb

Blue City of Apopka water valve marker

Duracast Style 2 Year Exposure

Non-Reflective Custom 2 ½” on rolled curb

Environmental warning signs on concrete

Metal vs Duracast

3 Year Exposure Concrete Pad

Tactile paving dots with blue and yellow markers

Duracast Style 5 Year Exposure

Asphalt road in tire path 4” and 2 ½”

Circular environmental protection emblem

Duracast Style 5 Year Exposure

Close-up view

Yellow gas pipeline warning marker on pavement

Duracast Style 5 Year Exposure

Asphalt road in tire path. Bottom section cleaned with soap and water

Four colored utility manhole covers on pavement

Standard and Duracast Style

12 Year Exposure Rolled curb 2 ½” samples

Turquoise round object on textured asphalt

Standard Style 5 Year Exposure

Sidewalk in suburban neighborhood

Four colored utility covers on concrete slab

Standard Style 22 Year Exposure - Central, FL

Test samples installed on brick paver. Marred with screwdriver to test for loss of adhesion

Yellow high-pressure gas line warning marker

After 2 years 1992

Two yellow gas line warning markers on pavement

After 3 years 1993

Yellow high pressure gas line markers on asphalt

After 13 years 2003

Duracast Style Road Test Aging

5” Reflective and 2 ½” asphalt road in tire path

Concrete surface with drilled circular cores, tools

Removal of Road Test Samples after 13 years

Markers pulled away top layer of
asphalt when removed

Colorful geometric shapes with text fragments

Standard and Duracast Weatherometer Testing

Bradley University/Department of Physics (2/1/91)

Tested: Standard Style das Curb Marker.  Stock Titles all colors reflective & non-reflective.

  • Testing Mechanism: QUV Weatherometer

  • Cycle: 4 hours UVA at peak emission at 55°C followed by 4 hours of condensation at 45°C.

  • Duration: 2,353 Hours.

  • Results Summary: “The test duration on the das Curb Marker is equivalent to 30 years of outside exposure at latitudes comparable to Peoria, Illinois.”

“...All surface markings were still legible after prolonged exposure.”
“There was some discoloring of the background on each with minimal noticeable on the yellow to a maximum on the blue although this later discoloration still allowed the sign to be read with no accompanying mechanical surface damage.”

Winona State University/Composite Materials Technology Center (3/2/98)

  • Tested: Duracast Style das Curb Marker. Stock Titles all colors reflective & non-reflective.

  • Testing Mechanism: QUV Weatherometer

  • Cycle: 4 hours UVA at peak emission at 60°C followed by 4 hours of condensation at 50°C.

  • Duration: 2,000 Hours.

  • Results Summary: “None of the exposed Duracast samples showed any signs of fading when compared to the unexposed samples and the Duracast finish did not yellow or cloud.”
    “None of the exposed samples showed any signs of cracking.”

Round utility labels with arrows