1. What is CORO DG-27 (2-in-1)? - CORO DG-27 is a dual-purpose industrial chemical formulated to work as both a degreaser and descaler, or as a rust remover and metal conditioner, depending on the product type. - CORO DG-27 (2 in 1) is a specialized blackening chemical product used in manufacturing industries for metal finishing. This product is designed to provide a dual function of blackening and corrosion resistance in a single application process. Here’s a detailed overview: - 2-in-1 Formula: Combines cleaning and surface preparation in a single step - Heavy-Duty Action: Removes oil, grease, rust, and mineral scale - Surface-Prep Ready: Ideal before painting, coating, or welding - Time-Saving: Reduces the need for separate cleaning and treatment processes. # CORO DG-27 (2-in-1) Chemical Manufacturer.