When flying with your Michael Harding oil paints, we always recommend you place a notice in your luggage for the airport security personnel to read, it will inform them that you are carrying oil paints and that they are safe to transport. The link below will take you to a printable PDF that you can use when flying with MH paints.
Please note this letter is intended to help clear your paints through airport security, but it is not a guarantee. If in doubt, we advise checking with your airline prior to your trip.
Enjoy your trip!