The protective agent for metallic fibers is a high-performance finishing chemical designed to safeguard fabrics containing metallic yarns or fibers. Metallic fibers are often prone to oxidation, discoloration, and strength loss due to exposure to moisture, salts, and environmental pollutants. This agent forms a protective barrier on the fiber surface, effectively preventing corrosion, tarnishing, and fading while maintaining the original metallic luster.It enhances durability, ensures long-lasting brightness, and improves the washing and wearing performance of fabrics with metallic elements. The product is suitable for use in decorative textiles, apparel, home furnishings, and technical fabrics where metallic aesthetics and performance must be preserved.