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Troubleshooting
Applying Material
Problem
Ragged line edges when extruding
Rough material surface when extrud-
ing
EXAMPLES:
Correct line application will produce a full straight line with sharp edges; correct color,
thickness and width; a firm bond to the surface; and have uniform reflectivity.
Insufficient adhesion (material bulges
at beginning of line)
Rough and bumpy line
Gas bubbles in line
20
Cause
Dirty screed box
Cold material temperatures
Marking speed too fast
Material thickness too think
Overheated material
Moisture on road surface
Rough road surface
Screed box low on material
ti14507a
•
Material temperature too low
™
•
Thermolazer
•
Debris on road
•
Surface temperature too cold
ti14508a
•
Debris on surface
•
Crust from overheated material
•
Debris caught in die
•
Material not covering road high
ti14509a
spot
•
Moisture or solvent on surface
•
Material is overheated
ti14510a
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CAREFULLY clean box. Discharge
opening and die plate runners need
to be free of debris.
Heat material as required.
Slow Thermolazer
Slow Thermolazer
screed box filled.
Reduce heat.
Allow road surface moisture to dry.
Smooth road surface.
Add material to screed box.
•
Raise material temperature
•
Decrease speed of
speed too fast
Thermolazer
•
Clear debris from road
•
Wait for temperature of surface to
raise
•
Clear debris from surface
•
Lower material temperature
•
Clean debris from die
•
Adjust screed box line thickness
•
Remove solvent from surface
•
Lower temperature of material
Solution
™
speed.
™
speed and keep
™
313879B
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