Drying Oil Posted on 8th November 201525th July 2021 by ThePD (The Project Definition) A Drying Oil is an oil capable of conversion from a liquid to a solid after a period of exposure to air. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Substance and tagged oil. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.