Forum Discussion
soren
Aug 10, 2013Explorer
j-d wrote:
Thing with OSB, it's made of a lot of glue relative to the wood. That means relatively little cellulose/wood for the CPES to penetrate. I don't believe the glue gets penetrated to any extent.
Actually, it's quite the opposite. Prior to being pressed into the final thickness, the chip matt is about 6-8X as thick. In standard OSB the glue to cellulose ratio is pretty light. In proprietary products like Huber's Advantech, there is exponentially more resin, which is why the stuff is noticeably heavier, almost looks like a non-wood based composite product when viewing cut edges, and wears out blades a lot faster. When you find an old piece of OSB laying outside, and it is swollen to nearly twice it's original thickness dimension, you get an good visual as to how much absorbent fiber there really is.
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