Table 3. Summary of analysis of variance of polyurethane content

Properties	ANOVA
Density	0.126^ns
Moisture content (MC)	0.000^**
Dimension stability (height)	0.000^**
Dimension stability (width)	0.013^**
Dimension stability (length)	0.415^ns
Water absorption (WA)	0.496^ns
Compressive strength	0.007^**
Screw holding strength (SHS)	0.000^**

Not significance,
Highly significant difference.
ANOVA: analysis of variance.