Frequent "Failures" in Thick-Plate Printing on Shoe Uppers? Sanqi International HY-5C Water-Based 3D Gloss Oil: Fast Thickening, Bend-Resistant, Anti-Yellowing, and Heat-Resistant up to 150℃

In the world of shoe upper screen printing, the thick-plate base coating process has always been a "touchstone" for testing the technical capabilities of printing factories. Issues such as insufficient 3D fullness, cracking of the coating after bending, and collapsing or deformation during high-temperature hot pressing not only increase rework costs but also directly affect the final quality of the shoes. Facing increasingly stringent environmental requirements and consumers' expectations for shoe durability, Sanqi International has launched the HY-5C Water-Based 3D Gloss Oil, bringing a major performance upgrade to the thick-plate base coating process for shoe uppers.
Saying Goodbye to "Flaccid" Coatings: Precisely Shaping 3D Contours
The core of thick-plate base coating lies in being "stiff" and "stable." HY-5C features a milky-white paste texture, with a fineness strictly controlled below 25um. Paired with a golden application viscosity of 90,000 to 120,000 mPa·s, it glides smoothly through the mesh, completely eliminating the hassle of clogged screens. During the printing process, its excellent leveling and anti-sagging properties allow the ink to thicken quickly with sharp edges. It effortlessly prints 3D patterns with distinct, crisp edges, resulting in a full shape that does not collapse after forming.
Fearless Against Extreme Tests: Dual Certification of 100,000+ Bends and 3.5KG Tensile Strength
As a dynamic load-bearing part, the shoe upper places extremely high demands on the flexibility and adhesion of the base layer. HY-5C performs exceptionally well in mechanical properties: it can withstand over 120,000 repeated bends at room temperature without cracking. Even in the freezing environment of -20℃, it still maintains a bend resistance of over 100,000 times, perfectly solving the industry problem of brittle cracking on shoe uppers during winter in northern regions. Meanwhile, its strong adhesion to substrates like mesh and leather ensures a tensile strength consistently above 3.5KG, keeping the pattern firmly attached even under severe pulling forces.
High Solid Content & Weather Resistance: Effortlessly Handling Complex Post-Processing
An excellent base coating gloss oil must possess strong environmental adaptability. With a high solid content of 45%~50%, HY-5C forms a thick, wear-resistant film. It achieves a Level 4 anti-yellowing rating, remaining clear and transparent even after long-term use. More impressively, it is perfectly compatible with high-temperature hot pressing processes at 150℃, without bubbling or softening, providing solid support for subsequent processes like hot stamping and embossing. Maintaining a weakly alkaline pH range of 7.5~8.5, its water-based eco-friendly formula is gentle on substrates, fully aligning with the trend of green manufacturing.
Choosing Sanqi International HY-5C is not just about selecting a base coating material; it is about choosing a stable, highly efficient, and premium shoe upper printing solution.