Hi

I have noticed that commercial smoke machines used in the entertainment industry etc. are using a "smoke liquid" based on glycol rather than based on mineral oil. Also in the RC community some seem to use glycol/water mix as alternative to various oil based mixtures. Glycol is probably also safer from a health perspective both for the pilot and the audience, and the flash point is also in the same order of magnitude. So are there any drawbacks, and what about compatibility with aircraft paint and gelcoat?

Any experience out there regarding glycol based smoke liquids for full scale aerobatic planes?

Fly safely