SEARESIN 146: High-Performance Acrylic Resin for Genuine Leather Finishing
Anionic Co-Polyacrylate Dispersion with High Physical Properties (30.0% Active, pH 8.0, Medium Soft) — Very Good Cold Flexing, Excellent Embossing & Print Cut-Through Resistance, Very Good Solvent Resistance, Excellent Light Fastness, High Wet & Dry Flexing by Guangdong Seaton Advanced Materials Co., Ltd.
Introduction
Not every genuine leather finish only has to look good. Many have to survive embossing plates, printing presses, solvent-based top coats, cold weather, and years of flexing and wear. Where ordinary soft binders fail, leather needs a binder built around physical performance—one that holds its shape under heat and pressure, resists print cut-through, withstands solvents, keeps its colour under light, and flexes wet or dry without cracking. SEARESIN 146 is Guangdong Seaton Advanced Materials Co., Ltd.'s high-performance acrylic resin for genuine leather finishing—an anionic co-polyacrylate dispersion with high physical properties at 30.0% active substance and pH 8.0, supplied as an opaque, milky white liquid in a medium-soft grade. SEARESIN 146 offers very good cold flexing, excellent embossing and resistance to print cut-through, very good solvent resistance, excellent light fastness, and high wet and dry flexing. Designed as the main binder for soft articles requiring natural finishes, it brings engineering-grade durability to everyday leather finishing.
Core Benefits
Excellent Embossing & Print Cut-Through Resistance
The signature strength of SEARESIN 146 is its excellent embossing performance and resistance to print cut-through. Embossing and printing are the most mechanically brutal operations a finish ever faces: heated plates press deep patterns into the leather under pressure, and print rollers shear the surface. A binder that is too soft flows away and loses the pattern; a binder that is too brittle cracks and splits. Cut-through—where the pattern or ink penetrates through the finish and exposes the leather or base coat beneath—is one of the most common and costly defects in embossed and printed leather. SEARESIN 146's medium-soft, high-physical-property film holds the embossed pattern sharply and cleanly, retains definition after the plate is released, and resists cut-through so the finish remains intact and the pattern crisp. This makes it the preferred main binder for embossed shoe uppers, printed leather goods, and any article where pattern fidelity and surface integrity are judged at a glance.
Very Good Cold Flexing & High Wet and Dry Flexing
SEARESIN 146 provides very good cold flexing together with high wet and dry flexing. Flexing tests are the industry's standard measure of finish durability: the coated leather is bent repeatedly, dry and wet, warm and cold, and inspected for cracking, whitening, and delamination. Cold flexing is the harshest version—low temperature makes acrylic films brittle, so a finish that passes cold flexing has real margin. Wet flexing is equally demanding for footwear and garments exposed to rain, snow, or cleaning. SEARESIN 146 passes both: its film remains flexible and adherent at low temperature and under wet conditions, resisting the cracking and whitening that shorter-life finishes develop. For shoe upper, garment, and outdoor leather that must flex through winter cold and wet weather without surface failure, this combined cold and wet/dry flexing performance is the difference between a finish that lasts and one that fails in the field.
Very Good Solvent Resistance
SEARESIN 146 offers very good solvent resistance. Leather finishing rarely ends with one coat; top coats, lacquers, and solvent-borne treatments are frequently applied over the base, and cleaning and renovation agents may contact the surface during service. Solvent contact attacks weakly crosslinked or poorly formulated acrylic films, causing swelling, gloss loss, softening, and even dissolution of the finish. SEARESIN 146 is formulated to resist solvent attack, keeping the base coat stable and intact beneath solvent-based top coats and during cleaning. This allows finishers to build multi-layer solvent systems on a reliable foundation, and it protects the finished leather against the solvent damage that shows up as patchy gloss, softening, and finish loss after cleaning or re-finishing.
Excellent Light Fastness & High Physical Properties
SEARESIN 146 delivers excellent light fastness and is a co-polyacrylate dispersion with high physical properties. Light fastness determines whether a finish keeps its colour and clarity under prolonged exposure to light—critical for pale, white, and brightly dyed leathers, and for automotive and furniture upholstery that sits in daylight for years. Poor light fastness appears as yellowing, fading, and shade shift that cannot be corrected after the fact. SEARESIN 146 resists light-induced yellowing and fading, holding its original shade and appearance over time. The "high physical properties" that describe the product are not marketing language but the measurable result of its co-polymer architecture: greater tensile strength, elongation, and tear resistance than conventional soft acrylics, which is what allows the film to combine medium softness in the hand with the mechanical toughness needed for embossing, flexing, and solvent exposure. That combination—soft enough for a natural hand, tough enough for hard processing—is precisely what SEARESIN 146 was built to deliver.
Technical Specifications
• Product Type: Co-polyacrylate dispersion with high physical properties (anionic)
• Appearance: Opaque, milky white liquid
• Relative Softness: Medium soft (中软)
• Active Substance: 30.0% (high solids)
• pH Value: 8.0
• Charge: Anionic
• Key Feature: Very good cold flexing, excellent embossing & print cut-through resistance, very good solvent resistance, excellent light fastness, high wet & dry flexing
• Application: Main binder in finishing systems for soft articles requiring natural finishes; 10-30% based on binder weight
• Storage: 1 year in cool, dry conditions (original sealed packaging)
Application Guidelines
SEARESIN 146 is designed to be applied as the main binder in the finishing systems of all kinds of leather, especially soft articles requiring natural and soft finishes, to produce coatings with high physical properties. As the principal film-forming resin, it builds the layer that carries colour and absorbs the mechanical and chemical stresses of embossing, printing, solvent top coats, and flexing.
Recommended Addition (% based on binder weight)
• Suggested addition: 10 - 30% (based on total binder weight)
• Actual dosage depends on the desired effect, leather type and finish system
Typical Application Areas
• Embossed shoe upper leather — pattern definition and cut-through resistance
• Printed and finished leather goods requiring surface integrity
• Multi-layer solvent top coat systems needing a stable base
• Light-coloured, white and automotive upholstery requiring light fastness
SEARESIN 146 is designed for finishers who need more than softness: they need a base that survives embossing, printing, solvents, cold, and wet service. Its 30.0% solids, medium-soft hand, and high physical properties make it a dependable main binder across shoe upper, leather goods, and upholstery systems. Actual addition should be optimized within the specific recipe and process. SEATON technical support is available to help tailor SEARESIN 146 to your embossing, printing, and solvent-resistance requirements.
Economic & Quality Value
SEARESIN 146 delivers strong economic and quality value where finishing is toughest. Excellent embossing and cut-through resistance directly reduce the rejects, repairs, and seconds caused by pattern loss and surface breakthrough—defects that are otherwise almost impossible to correct. At 30.0% active substance, each kilogram delivers more film-forming capacity, lowering material and freight cost per hide. Very good solvent resistance protects multi-layer systems from swelling, softening, and gloss loss, avoiding rework after top-coating and cleaning. Excellent light fastness protects pale, white, and automotive shades from fading complaints and warranty claims. Cold flexing and wet/dry flexing performance reduce field failures in winter and wet conditions. For tanneries producing embossed, printed, solvent-finished, or light-coloured leather, SEARESIN 146 is a high-performance main binder that raises process yield and end-product durability at the same time.
About SEATON & Conclusion
Guangdong Seaton Advanced Materials Co., Ltd. (SEATON) is a trusted supplier of high-performance leather chemicals and processing solutions. With dedicated expertise in co-polyacrylate technology, high-physical-property resin formulation, embossing and print-resistant finishes, and light-fast and solvent-resistant systems, SEATON combines continuous research with practical manufacturing knowledge to deliver products that meet the needs of leather producers worldwide. SEARESIN 146 represents SEATON's commitment to advancing durable, high-performance finishing systems for genuine leather.
SEARESIN 146 represents a premium standard in high-performance acrylic resin for genuine leather finishing—the perfect combination of anionic co-polyacrylate technology, 30.0% high solids, medium-soft hand, excellent embossing and print cut-through resistance, very good solvent resistance, excellent light fastness, and cold plus wet/dry flexing performance. Whether you are embossing shoe uppers, printing leather goods, building solvent top coat systems, or finishing light-coloured upholstery, this high-performance acrylic resin for genuine leather finishing delivers the mechanical and chemical toughness your leather needs.
Hold crisp, clean embossed patterns and stop print cut-through, resist solvent attack beneath top coats and during cleaning, keep colour true under long light exposure, flex without cracking in cold and wet conditions as well as dry, and get all of this from a medium-soft film that still feels natural in the hand—experience the difference that SEATON leather chemicals and high-physical-property acrylic resin technology can make in your genuine leather finishing. Choose SEARESIN 146 today—the intelligent main binder for high-performance leather finishes.
Contact your SEATON representative today for high-performance acrylic resin trials and embossing, printing and solvent-resistance support.