WATERPROOFING AGENT APPLYING APPARATUS

PROBLEM TO BE SOLVED: To provide a waterproofing agent applying apparatus capable of highly efficiently uniformly applying a waterproofing agent. SOLUTION: The waterproofing agent applying apparatus is used for applying the waterproofing agent on an indoor side surface joint part of a substrate plate material 3 of a panel base plate 4, and is provided with a transporting platform 12 for placing and transporting the panel base plate 4 so that the substrate plate material 3 becomes the upper surface, two parallel running rails 13, 13 provided crossing and straddling over the transporting platform 12, a running beam 16 which can run along the running rails 13, 13 in a direction orthogonal to the transporting direction of the transporting platform 12, a traverse platform 19 which can traverse in a direction parallel to the transporting direction of the transporting platform 12 along the running beam 16 and a coating nozzle 20 provided with a flexible lip, which is supported to be vertically moved to/from the traverse platform 19 and to be horizontally turnable 90 deg. and has a narrow and wide opening at the top end abutting on the substrate plate material 3.