increased from 10 to 40 wt.% in the face layer, the TS and WA values
of the specimens decreased to 9–35% and 7–29%, respectively.
The TS and WA values of the specimens were lower than those of
the RH particleboards but higher than those of the strandboards.
The RH particleboards made from 100% the RH particles swelled
twice as much as the strandboards made from 100% the wood
strands. Significant differences (p < 0.01) between some group
averages for the TS and WA values are shown in Table 2 as letters.
No delamination was observed between the RH core layer and the
wood strand layer of the specimens after the immersion test.