June 2015 Newsletter







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June 2015 Issue

Skip-Time  Newsletter

brought to you by:

SC-12 Control System

New Full-Color Display



The new SC-12 Road Marking Vehicle Control System now has a vibrant full-color display.  This sunlight-readable screen opens the door for advanced menu options and functions that weren’t previously available.  

Operators can now view application rates and preview patterns directly from their SC-12 Master display.  Calibration is easier than ever with a guided calibration process.  Modify stripe and cycle, add a mid dot, or view counter channels quickly with a few clicks of the menu push buttons.

The SC-12 Master is the new industry standard for long-line road marking vehicle control systems.  It is advanced enough to handle most of the road marking vehicle’s application functions; and now, with the full-color display, it is intuitive enough for even the newest of operators to use.

Learn More

Improved Customer Support

After-Hours Phone Answering



Skip-Line is proud to announce that we are testing a 24-hour phone answering service. This means that customers will always chat with a live operator.  Troubleshooting and customer support will be limited outside of business hours, but with this service we can resolve issues and respond quicker than ever!

Call Skip-Line anytime at 541-963-0111.

Brent’s Tips

HOW TO GET THE BRIGHTEST, BEST QUALITY LINE
PART II

In a follow-up from last month’s (see it here) – here’s a little more on how application rates affect night-time driving visibility of road markings and the safety of roadways.

“A good application of beads results in the top layer of glass beads being embedded to about 60% of the diameter of the bead. There should be consistent quality of both glass beads and paint so that the paint thickness and bead coverage promotes even retroreflectivity across both directions of road travel.

 

  • Too little paint results in under-embedded beads. This will result in improperly anchored beads that will fall out prematurely, and thus will not be effective retroreflectors.

  • Under-embedded beads cause a large percentage of the light that enters them to exit out the back. Too much paint results in over-embedded beads. While over-embedded beads may remain in the binder, light cannot enter them and thus no retroreflection can occur.

 

“The retro-reflected light from glass beads is a function of three variables:
 

  1. Index of refraction of the glass beads

  2. Bead shape, size, and surface characteristics

  3. The number of beads present and exposed to light rays”

 

From Austin, Richard L., and Schultz, Robert J., “Guide to Retroflection Safety Principles and Retroreflective Measurements”, 2009.

 

While the first two items are controlled through quality specifications and purchasing from a reputable glass beads supplier, the third item is controlled by the striping truck operator.

 

The striping truck operator must ensure that the right amount of glass beads are applied to the paint with speed control, periodic calibration, and continuous monitoring. Essentially, it is the operator’s responsibility to verify his or her work by calibrating and  regularly checking to see if the calibration is still accurate.
 

According to the Ennis Flint Traffic Paint Guidebook (March 2014),  “Bead guns should be calibrated to ensure that the proper amount of glass beads is being applied to the paint for the desired retro reflectivity. Not enough glass beads or too many beads can result in low retro numbers. Applying too many beads can also prove to be expensive, as the beads that do not bond to the paint, will quickly wear off and end up on the shoulder of the road.

“Proper bead calibration is done by holding a container under the bead gun and having a coworker turn on the gun for 10 seconds. Measure the amount of glass beads that come out of the gun in 10 seconds in a graduated cylinder marked in milliliters. Changing bead tank pressure or bead gun inserts may be necessary to achieve the desired rate needed. Continue this process until the proper bead application rate is achieved.”

  

 
 

But remember, the right bead application rate with the wrong binder application rate (paint mil thickness)  is detrimental to the line quality. So, the ideal method for measuring both the binder and bead application rates is with a Skip-Line Data Logger System. A DLS monitors application rates on-the-fly, and alerts the operator when any parameter is out-of-spec. With a DLS, make slight adjustments to speed and/or pressure to get the right application rates for both binder and beads.

  

A bright retroreflective line for night-time driving has been proven to save lives*. The best and brightest lines are are achieved with accurate and consistent application rates.

 

* Paul J. Carlson, Ph.D., P.E., Identifying the Elusive Relationship Between Safety and Pavement Marking Brightness, Texas A&M Transportation Institute

 
 

Happy Striping!

—Brent

Skip-Line, Inc.
phone:  (541) 963-0111
find us online at www.skip-line.com

 
 
Copyright © 2015 Skip-Line, Inc.

Skip-Line® is a registered trademark of Skip-Line, Inc.,the industry source for quality road marking controls and monitoring devices.

 



Posted on July 9, 2015 in Uncategorized

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