ELECTROLYTIC ETCHING JIG AND ELECTROLYTIC ETCHING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an electrolytic etching jig having a low risk of leakage of an electrolytic solution when performing an electrolytic etching of a structural member etc. that is used underwater and has a complex surface shape, and an electrolytic etching method using the electrolytic etching jig.SOLUTION: An electrolytic etching jig is equipped with: a water-absorbing polymer 10 capable of absorbing an electrolytic solution; a film member 20 that covers the water-absorbing polymer 10 and is capable of permeating ions in the electrolytic solution; and an electrode 41 electrically connected to the water-absorbing polymer 10.