| abstract |
An object of the present invention is to provide a coating film that can achieve sheet peeling, facilitate removal operations, and is not easily peeled off even when used for a long time, and a composition for forming an undercoat layer that forms the undercoat layer. The present invention relates to a composition for forming an undercoat layer, which is a composition for forming an undercoat layer for forming the undercoat layer including the undercoat layer and a coating film of an antifouling layer adhered to the undercoat layer. The composition for forming an undercoat layer contains a base polymer and a silicone polymer, and a polar group-containing substituent is bonded to at least a part of the silicone polymer. |