INSCRIPTION COLORING METHOD OF MANHOLE COVER

摘要

PURPOSE: An inscription coloring method of a manhole cover is provided not to corrode the pigment of an inscription and to naturally hardened without a heating process by using the mixed pigment liquid of epoxy resin and a hardening agent. CONSTITUTION: In casting a manhole cover(4), an inscription about the use of a manhole or a management agency is formed as a groove(1). A protruding sill(2) is formed around the groove. Mixed pigment liquid is injected inside the groove and hardened without heating. The mixed pigment liquid is made by mixing colored epoxy resin with a liquid hardening agent at a ratio of 3:1 or 5:1.