Epoxy resin-based paint composition, laminated coating film and coating film repair method

摘要

PROBLEM TO BE SOLVED: To provide an epoxy resin-based coating composition capable of forming a coating film in which the occurrence of coating film defects such as blisters, cracks, lifting (wrinkles) and middle pus is suppressed on a coating film containing a thermoplastic resin. thing. An epoxy resin-based coating composition coated on a coating film containing a thermoplastic resin and satisfying the following (I) or (II). (I) A coating film having a dry thickness of 150 μm formed from the epoxy resin-based coating composition has a storage elasticity at 20 ° C. of 1,200 MPa or more and 6,000 MPa or less, and is an aliphatic or alicyclic diglycidyl. The epoxy resin-based coating composition containing ether (C) is an aliphatic or alicyclic diglycidyl ether (C), an amine curing agent (B), and the aliphatic or alicyclic coating composition. It contains an epoxy compound (A) other than diglycidyl ether (C), and the ratio of the content of the diglycidyl ether (C) to the content of the epoxy compound (A) is 0.4 to 1.2. [Selection diagram] None