COATING METHOD AND APPARATUS

摘要

PROBLEM TO BE SOLVED: To avoid formation of a wide or thin part in a coating film when a coating agent is discharged from a coating gun at a low pressure after being discharged at a high pressure.SOLUTION: A sealer coating apparatus 10 as a coating apparatus includes: a supply line 24 for supplying a sealer 12 (a coating agent) from a storage tank 14 to a high-pressure discharge gun 16 and a low-pressure discharge gun 18; and a return line 40 for returning the sealer 12 to the storage tank 14. The return line 40 is provided with a back pressure regulator 44. The return line 40 is attached with a residual pressure removal line 46 bypassing the back pressure regulator 44.