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Troubleshooting
20 313879B
Applying Material
Problem Cause Solution
Ragged line edges when extruding Dirty screed box CAREFULLY clean box. Discharge
opening and die plate runners need
to be free of debris.
Cold material temperatures Heat material as required.
Marking speed too fast
Slow Thermolazer
™
speed.
Material thickness too think
Slow Thermolazer
™
speed and keep
screed box filled.
Rough material surface when extrud-
ing
Overheated material Reduce heat.
Moisture on road surface Allow road surface moisture to dry.
Rough road surface Smooth road surface.
Screed box low on material Add material to screed box.
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)
• Material temperature too low
• Thermolazer
™
speed too fast
• Debris on road
• Surface temperature too cold
• Raise material temperature
• Decrease speed of
Thermolazer
™
• Clear debris from road
• Wait for temperature of surface to
raise
Rough and bumpy line • Debris on surface
• Crust from overheated material
• Debris caught in die
• Material not covering road high
spot
• Clear debris from surface
• Lower material temperature
• Clean debris from die
• Adjust screed box line thickness
Gas bubbles in line • Moisture or solvent on surface
• Material is overheated
• Remove solvent from surface
• Lower temperature of material
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