The duration required for tung oil to cure fully is a critical factor in woodworking and finishing projects. It is the period during which the applied oil undergoes oxidation and polymerization, transitioning from a liquid to a solid film. This timeframe is variable and depends on several environmental and application-related conditions.
Proper drying is essential to achieve a durable, protective, and aesthetically pleasing finish. Incompletely cured oil can remain tacky, attract dust, and fail to provide adequate resistance to moisture and wear. Historically, the extended curing period of tung oil has been recognized as a trade-off for its superior protective qualities and natural appearance.