Hi Dan, Your description is the very reason I do not use OSB. We live in a world that you can not stop moisture or water. You can not control it either. All a home owner can do is channel it.
Now that being said, I would think any paint should close it off and reduce the effects of moisture. Dave A. P.s. I am a purest, I prefer using the materials that God made, not the things that man makes. Real wood help together by nature elects is always better than glues. Working together, sharing the light of salvation seen through the cross of Jesus Rev. Dave Andrus, Director Lutheran Blind Mission 888 215 2455 HTTP://WWW.BLINDMISSION.ORG -----Original Message----- From: blindhandyman@yahoogroups.com [mailto:blindhandy...@yahoogroups.com] On Behalf Of Dan Rossi Sent: Thursday, April 01, 2010 6:59 AM To: blindhandyman@yahoogroups.com Subject: RE: [BlindHandyMan] orientification Al, O S B is oriented Strand Board. It seems to be a cross between plywood and particle board. It is made up of long strands of wood, but rather than being randomly glued together, the strands are aligned in specific patterns. The How Stuff Works article claims that plywood and OSB are pretty similar in strength and durability, but that OSB is susceptible to swelling if exposed to moisture after it is cut. Does anyone know how to seal cut ends of OSB? -- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: d...@andrew.cmu.edu <mailto:dr25%40andrew.cmu.edu> Tel: (412) 268-9081