Our car metal polishing protective agent is carefully formulated with calcium carbonate and deionized water. It is specially designed to achieve a triple effect of cleaning, polishing and protection for one application. The usage method is extremely convenient: Clean the vehicle body and dry the surface moisture. Shake the bottle well and then pour an appropriate amount of liquid onto the microfiber cloth. Wipe evenly in a circular motion until it becomes transparent. Repeat the operation for stubborn stains to enhance the effect. Moreover, it has calcium carbonate particles that can form a physical reflective barrier, and sodium carboxymethyl cellulose constructs an anti-fouling isolation layer.