What Are 'Chatter Marks'?
Chatter Marks is a well-known term in the floor sanding industry all over the world. It describes a closely spaced repeating drum or 'ripple' mark, which is visible in the floor following the sanding procedure.
Impossible to feel with the hand, Chatter Marks often show up more obviously when the finish is applied to the floor and can ruin what could otherwise have been a great job.
Many floor sanding contractors literally spend hours cutting these Chatter Marks out of the floor with a rotary sander and while they might succeed at removing the 'chatter', they create another problem; circular marks in the floor which can look even more unsightly than the original imperfection that they were trying to correct.
In any case, using a rotary sander to remove chatter marks is one of the biggest time-wasters in the floor sanding industry today. Understanding some of the causes of chatter marks and knowing how to rectify them will enable you to improve the quality of your work and save valuable time.
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