Etching agent for roughening the surface of at least all or part of the surface made of aluminum or aluminum alloy, a method of manufacturing a roughened substrate, a roughened substrate, a method of manufacturing a bonded body of a substrate-resin cured product, and a substrate-resin hardening Conjugate of water

摘要

An etchant for roughening a surface or a surface of a substrate made of at least all or part of a surface made of aluminum or an aluminum alloy, wherein at least a peroxodisulfate ion and a chloride ion are provided.