No alcohol. Non-flammable. Only "air shippable" foam air filter oil in the world. Compatible with all foam air filters and will not degrade foam. Hi-Tack. Completely biodegradable and non-toxic. Waterproof: will not wash off filter with water alone. Super EZ to clean using Evolution Bio Filter Cleaner. Green Standard Leader. NOTE: The water carrier drying time will vary depending on climate and relative humidity and will require at least 5 hours to "tack up" sufficiently for use. Overnight drying is recommended. Acceleration of drying time can be accomplished by direct sunlight or fans. The (2) filter system is recommended where one filter is always on the bike and one being "prepped". For those riders who don't have time for Evolution's longer drying time, then the original No-Toil filter oil is the correct choice.