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.
Duracast Style Installation 1990
2 ½” on rolled curb
Results after 13 years
NW Natural 9 Year Exposure
Duracast Reflective 4” (Customer submitted )
Standard Style 18 Year Exposure
Non-Reflective Sewer and Reflective
Power on rolled curb
Duracast Style 2 Year Exposure
Non-Reflective Custom 2 ½” on rolled curb
Metal vs Duracast
3 Year Exposure Concrete Pad
Duracast Style 5 Year Exposure
Asphalt road in tire path 4” and 2 ½”
Duracast Style 5 Year Exposure
Close-up view
Duracast Style 5 Year Exposure
Asphalt road in tire path. Bottom section cleaned with soap and water
Standard and Duracast Style
12 Year Exposure Rolled curb 2 ½” samples
Standard Style 5 Year Exposure
Sidewalk in suburban neighborhood
Standard Style 22 Year Exposure - Central, FL
Test samples installed on brick paver. Marred with screwdriver to test for loss of adhesion
After 2 years 1992
After 3 years 1993
After 13 years 2003
Duracast Style Road Test Aging
5” Reflective and 2 ½” asphalt road in tire path
Removal of Road Test Samples after 13 years
Markers pulled away top layer of
asphalt when removed
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.
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Testing Mechanism: QUV Weatherometer
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Cycle: 4 hours UVA at peak emission at 55°C followed by 4 hours of condensation at 45°C.
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Duration: 2,353 Hours.
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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)
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Tested: Duracast Style das Curb Marker. Stock Titles all colors reflective & non-reflective.
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Testing Mechanism: QUV Weatherometer
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Cycle: 4 hours UVA at peak emission at 60°C followed by 4 hours of condensation at 50°C.
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Duration: 2,000 Hours.
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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.”
