Dy-Mark Zinc Guard Rust Converter is a tannic acid-based rust converter specially formulated for the treatment of rusted surfaces. In one easy step, Zinc Guard chemically reacts with the rust to form a black inert organic compound that binds to the surface and provides a barrier by sealing out moisture for effective rust prevention

Features: 

Quick dry
6 Pack
Long-lasting metal protection
Excellent adhesion properties
Ideal for industrial applications
Provides a tough and durable finish to metal surfaces