Specifications: Temporary Overlay Markers

Packaging
The markers shall be packaged in boxes such that the vertical wall will not take a permanent set in excess of 15 degrees from true vertical wall with respect to the base.


Marker Body and 
Reflective Colors

Type Y-2 -- Amber 2-Way
Type Y-1 -- Amber 1-Way
Type W-2 -- White 2-Way
Type W-1 -- White 1-Way

Additional colors are available by special order.

Reflective Performance
Reflective tape shall be affixed along the top of vertical section of the marker inside the I-beam on one or both sides. Reflective tapes shall be a cube-corner micro prism material with the following:

Initial Brightness

Color Grade SI CIL
Yellow WZ 2.5 230
White WZ 3.5 320

Specific Intensity or Coefficient of Luminous Intensity at 0.2 observation angle and -4.0 entrance angle (in cd/ftc or mcd/lux)

 Marker Body
The marker body shall be made from .060" thick polyurethane which meets the following material:

Property

 Results ASTM Test Method
Specific Gravity (min) 1.19 D792
Hardness (min) 80A D2240
Tensile Strength (min psi) 4600 D412
Ultimate Elongation (min %) 330 D412
Modulus @ 300% (min psi) 1000 D412
Stiffness
@-20ºF (min psi)
@-72ºF (min psi)
1700

900
D1053

D1053
Compression Set 22 hr @ 70ºC max% 65 D396
Tabor Abrasion CS17 wheel wt. loss mg/100 cycles 3  

Adhesive
The adhesive, factory-applied to the marker base, shall be a solid butyl rubber 0.125" (32 mm) thick, minimum 0.75" (19.0 mm) wide on 1.0" (25.4 mm) wide release paper.

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