Thank you for your reply. I'm not sure I made it clear what l'm attempting. l'm trying to waterproof the internal structure of the wood by pulling out air and hopefully replacing it with poly. Trying to avoid the alternative mineral or linseed oils. This method I can safely do in my basement over the winter. I haven't had a problem with it drying. After the poly seal, I sand, paint, and clear coat with true coat. I do have concerns with seepage and swelling and would like to see if anyone that uses this method has a tried and proven way of doing it. Thanks again, any and all help greatly appreciated.