A dry primer film composite that includes a release carrier film and a pigmented sandable primer layer having a dry film thickness of 100 μm or greater overlying the carrier film, wherein the primer layer is a latent heat curing material; and uses of the dry primer film composite for spot repair of a substrate in need of repair. In preferred embodiments said primer layer is formed from a coating composition comprising a binder chosen from thermosetting acrylics, GMA acrylics, urethanes, epoxies, polyester and combinations thereof.