You can buy 100% isopropyl at autoparts stores, sold as a gas line dryer.
Ethanol is "thinner" chemically than water. It has much less viscosity and very little surface tension. That is why it works well with dying wood, soaks in deeper and quicker.
Isopropyl is much thicker and oilier (has way more calories per volume, burns at 10,500 BTU instead of 9,000 BTU).
Methyl, also sold as a gas line dryer is available. I wonder if it would work. You can buy it in 100%, as well.