roughen in a sentence

Example sentences for roughen

After the first coat hardens approximately one hour, the surface is scratched with the edge of the trowel to roughen it.
Roughen surface of each layer to provide key for the next.
Prior to application, roughen embankment and fill areas by rolling with a crimping or punching type roller or by track walking.
The purpose of abrading is to roughen the surface, not to remove a significant amount of galvanizing.
Roughen wood with coarse sandpaper and soak it in a pot of melted wax for repellency.
It is important that the texturing equipment not tear or unduly roughen the pavement surface during the operation.
Roughen surface of each layer to provide key for next.
But these tools also can roughen the silicon surface.
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