According to Wikipedia, the CoF of polycarb is 0.31
To compare with wood, according to
this,
Quote:
Coefficients of sliding friction for smooth, dry wood against
hard, smooth surfaces commonly range from 0.3 to 0.5; at
intermediate moisture content, 0.5 to 0.7; and near fiber
saturation, 0.7 to 0.9.
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