Coating Plating "Room Temperature Zinc Plating ZRC Method" <Case Studies Provided>

There is a proven track record of maintaining rust prevention effects for over 19 years since construction on bridges. This reduces lifecycle costs.

The "Room Temperature Zinc Coating ZRC Method" is a technique used to protect steel members, such as large structures, thin sheet products, and bridge girders, from rust where hot-dip galvanizing is difficult to apply. By applying a one-component liquid mixture called "ZRC," which contains 95% high-concentration zinc in a dry film with a thickness of 81μm or more, it exhibits rust prevention equivalent to hot-dip galvanizing (JIS H8641 HDZT77). The effectiveness can be maintained over a long period, and in a survey conducted in November 2022 on a part of the Kamoike Ohashi Bridge in Yokohama City, which opened in October 2003 (underneath the floor slab and stairs), there was no peeling or rust formation, maintaining a state that has not required repairs for over 19 years. **Features of the Room Temperature Zinc Coating ZRC Method:** - No immersion in a zinc plating bath is required, allowing for application to large components in factories or on-site. - Since it is applied at room temperature, it can be used on thin products that may warp due to high-temperature processing. - Corrosion resistance performance equivalent to hot-dip galvanizing has been confirmed through outdoor exposure tests (5 years in Miyako Island). - Long-term durability is achieved through electrical conductivity within the coating. Repairs, renovations, and re-coating are also easy. - Free design options are possible with the use of dedicated topcoats in colors like red and blue. ★ Case study materials can be viewed from the "PDF Download."

Special Construction Method