PROBLEM TO BE SOLVED: To provide an effective technique for detecting a supply state of a curing inhibitor to a coating material containing a curing agent with an inexpensive device.;SOLUTION: A curing inhibitor supply device 10 includes a storage tank 11 which can store a curing inhibitor C, an inflow pipe 12 which flows the curing inhibitor C into the storage tank 11, a supply pipe 14 which supplies the curing inhibitor C from the storage tank 11 to a paint tank T, and a detection section 20 which detects that the curing inhibitor C is supplied to the paint tank T through the supply pipe 14, where the detection section 20 includes a pressure lead-out pipe 21 of which one end opening 21a is arranged in a tank inner bottom part 11b of the storage tank 11 and the other end opening 21b communicates with a pressure sensor 30, and a pressure determined depending on a liquid level H of the curing inhibitor C when the curing inhibitor C stored in the storage tank 11 is supplied to the paint tank T through the supply pipe 14 is lead out by the pressure lead-out pipe 21 and is transmitted to the pressure sensor 30.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2019,JPO&INPIT
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