Ok methanol ie Heet (an octane booster sold in auto section of wal-mart) will not absorb water from the air. Isopropyl and ethyl alcohol do and is therefore impossible to have a truly 100% alcohol. So I'd use the exact same process but sub methanol for isopropanol. Also methanol is highly flammable so you may want to let it dry on its own. Lighting it on fire would just be an unfortunate thing to have happen