Celvolit 1491

In modern adhesive formulation, choosing the right polymer dispersion is critical to achieving superior bonding strength, water resistance, and high-speed machine runs. Celanese polymer emulsions—particularly the Vinyl Acetate / Ethylene (VAE) copolymer series and Vinyl Acetate Homopolymers—have set high industry standards across woodworking, packaging, tobacco, and textile laminating.   1. Key Performance Factors in Adhesive Formulations When formulating industrial adhesives, chemical formulators usually balance several fundamental chemical and physical parameters: Solids Content (%) & Viscosity: Higher solids content (e.g., 60.0%) speeds up drying and setting time, while viscosity governs flow behavior during roller or nozzle coating. Glass Transition Temperature (Tg) & MFFT: Determines film flexibility, low-temperature resistance, and tack formation. Lower Tg polymers yield better flexibility and wet tack. Colloidal Stabilization System : Most Celvolit emulsions are stabilized with Polyvinyl Alcohol (PVOH / PVA ), providing excellent rheology, mechanical stability, and compatibility with water-soluble polymers and fillers like Calcium Carbonate (CaCO3).   2. Comprehensive Grade Breakdown & Application Mapping Below is a detailed breakdown of widely requested Celvolit and Vinamul emulsion grades, highlighting their technical advantages and targeted industrial uses: A. Packaging & Paper Converting Packaging applications demand fast setting times, strong adhesion to low-polar substrates, and responsiveness to plasticizers or solvents. Celvolit 149: Properties: 55.5% Solids, Viscosity 3200–4400 mPa·s. Features excellent heat resistance, high shear resistance, and fast setting. Applications : Substrate bonding across Kraft paper, coated paper, PVC, polymeric film, and film lamination. Celvolit 1405: Properties: High solids (60.0%), low viscosity (400–1600 mPa·s). Extremely low VOC grade with rapid setting speed and superior thermal stability. Applications: High-speed automated packaging lines for kraft and coated paperboard. Celvolit 1475: Properties: Low Tg (-18℃), high ethylene content. Exceptional wetting and bonding on low polar surfaces with extended open time and strong wet tack. Applications: Polymeric film-to-paper laminating and difficult-to-bond substrates. Celvolit 1488 (SG) & Celvolit 1498 (SG): Properties: 55.5% Solids, Viscosity 4500–6500 / 3000–4500 mPa·s. Excellent viscosity build/thickening response when formulated with Dibutyl Phthalate (DBP) or glycol ether ester plasticizers. High wet tack, fast setting, and heat resistance. Applications: Versatile general adhesive applications, coated board bonding, and paper converting. Celvolit 1490: Properties: 60.0% Solids, low Tg (-28℃). Outstanding cold resistance and strong initial adhesion on hard-to-bond materials. Applications: Specialized packaging bonding UV-varnished surfaces, PP, PE, and PET films. Celvolit 1491: Properties: 55.5% Solids. Extremely low VOC, excellent shear resistance, and well-balanced open time/setting speed ratio. Applications: Paper converting, film lamination, and general packaging. Celvolit 1499 (SG): Properties: 55.5% Solids, Viscosity 1500–2500 mPa·s. Provides high wet tack and fast green strength development. Applications: High-speed paper converting, box gluing, and woodworking assembly. B. Woodworking & Flooring Adhesives Wood adhesives require strict water resistance (DIN EN 204 D3/D4 standards), thermal endurance, and resistance to creep under physical stress. Celvolit 1426 (SG): Properties: Specially engineered for Isocyanate-crosslinked Emulsion Polymer Isocyanate (EPI) systems. Offers high resistance to boiling water and fast setting speed after formulation. Applications: D4-grade wood bonding, structural timber, finger jointing, and laminate flooring. CELANESE VAE Emulsion Celvolit 1476 & Celvolit 1466: Properties: High water resistance, anti-yellowing performance, and high tensile bond strength. Applications: General wood glue, window frame joinery, D4 water-resistant formulations, and PVC foil lamination over wood boards. C. Tobacco Industry Applications Tobacco adhesives must satisfy strict low-VOC, low-formaldehyde safety regulations and maintain pristine performance on high-speed machine nozzles and rollers. Celvolit 1495: Properties: Low viscosity (100–1000 mPa·s), ultra-low VOC. Tailor-made for high-speed tobacco packaging machinery. Applications: High-speed side seaming, tipping paper, and outer carton packaging. Celvolit 1496: Properties: High Tg (23℃), Boric Acid-free, extremely low VOC formulation with excellent shear resistance. Applications: Compliance-focused cigarette side-seaming, filter rod manufacturing, and carton sealing. D. Textile & Specialty Polymers Vinamul 8482CN: Properties: 53.0% Solids, High Tg (37℃). Offers excellent machine stability, crisp hand-feel, high stiffness, and smooth roller/nozzle jetting. Applications: Textile stiffness agents, fabric coating, and general wood glues requiring high rigidity.   3. Summary & Formulation Strategy When upgrading adhesive formulations: For difficult substrates (PET, UV board, PP), opt for low Tg products like Celvolit 1475 or Celvolit 1490. For D3/D4 waterproof woodworking glues, Celvolit 1426 (SG) combined with polymeric MDI (pMDI) or Celvolit 1466 provides top-tier weatherability. For ultra-fast packaging lines, leverage high-solids emulsions like Celvolit 1405 or plasticizer-responsive polymers like Celvolit 1498 (SG) to minimize machine downtime. Contact our technical sales team to request samples, detailed Technical Data Sheets (TDS), or custom polymer blending assistance!