HIGHLY DURABLE COATED STEEL PANEL HAVING DAMAGED PART CORROSION RESISTANCE AND PROCESSABILITY AND PRODUCTION THEREOF

摘要

PURPOSE: To provide a fluoroplastic coated steel panel generating no red rust from a damaged part within a short period of time excellent in damaged part corrosion resistance, also satisfying processability and also excellent in film strength, hardness, adhesion, weatherability, abrasion resistance and corrosion resistance. ;CONSTITUTION: The lowermost chemical forming treatment layer, an epoxy resin undercoating layer containing anticorrosion pigment based on strontium chromate, a fluoroplastic intercoating layer having glass beads whose surfaces are treated with a silane coupling agent dispersed therein and an acrylic modified vinylidene fluoride resin topcoating layer are provided on the surface of a steel plate in this order.;COPYRIGHT: (C)1993,JPO&Japio