Sanqi International SQ-779 Water-Based Treatment Agent | Clean Surface, Strong Adhesion, Long-Lasting Anti-Yellowing & Colorfast
In the coating and printing processes of synthetic leather, genuine leather, and suede, surface oils, impurities, and residual release agents have always been core pain points affecting product quality—poor adhesion leads to paint peeling and flaking, while yellowing causes high-end leather goods to discolor rapidly. This not only diminishes aesthetic appeal but also directly damages brand reputation.
Sanqi International’s SQ-779 Water-Based Treatment Agent leverages an eco-friendly water-based formula to deliver integrated cleaning, surface activation, and adhesion enhancement—an all-in-one surface treatment solution for various leather materials. It ensures inks and paints firmly "lock onto" the leather surface, providing long-term resistance to yellowing and preserving the premium texture of leather.
Specifically formulated for the characteristics of leather surfaces, SQ-779 exhibits excellent penetration and cleaning power. It quickly breaks down natural oils in genuine leather, residual release agents and mold-release agents from synthetic leather production, and deeply embedded dust, oil, and contaminants in the nap of suede. After treatment, the leather’s original grain, softness, and flexibility remain intact. The substrate is restored to its clean, natural state, laying a solid foundation for subsequent coating or printing operations. This prevents, at the source, common defects such as paint delamination, pinholes, and uneven leveling caused by surface contamination.
The treatment agent effectively activates the polarity of the leather surface, optimizing interfacial bonding between the substrate and coating. This significantly enhances the adhesion of inks and paints on synthetic leather, genuine leather, and suede, easily passing rigorous tests such as cross-hatch adhesion and bend resistance. Whether used for bag leather, shoe upper leather, sofa leather, or automotive interior leather, the resulting paint film adheres tightly to the surface—resistant to abrasion, water washing, and repeated flexing. It remains crack-free and intact even after prolonged use, ensuring vibrant colors and patterns last over time.
To address the industry-wide challenge of leather yellowing, SQ-779 incorporates highly effective anti-yellowing additives. Professional testing confirms its yellowing resistance reaches Grade 4 or higher, effectively protecting against environmental factors such as UV radiation and high temperatures. Whether for furniture leather displayed indoors long-term or shoe and bag leather used outdoors, SQ-779 helps maintain the original color—resisting yellowing and darkening—consistently showcasing the fine texture and bright appearance of premium leather. This extends product lifespan and increases added value.
Formulated with environmental sustainability in mind, SQ-779 is water-based, free from heavy metals and hazardous solvents, emits low VOCs, and has no irritating odor. It is safe and eco-friendly during application, suitable for enclosed workshop environments, protecting operator health and meeting green manufacturing standards. Highly compatible and easy to apply, it can be directly sprayed or wiped on—requiring no complex process adjustments. It integrates seamlessly into various leather production lines, balancing efficiency with quality.
From surface cleaning to adhesion enhancement, from anti-yellowing protection to eco-friendly application, Sanqi International’s SQ-779 Water-Based Treatment Agent delivers robust performance to solve the core challenges in leather coating. It helps leather manufacturers improve finished product yield rates and create high-end, durable, visually appealing leather goods—making it the preferred auxiliary agent for surface treatment of synthetic leather, genuine leather, and suede.
