A new generation of universal solvent-free two-component polyurethane (PU) adhesive has been launched, engineered to deliver exceptional bonding performance across diverse plastic film substrates, addressing longstanding compatibility challenges in flexible packaging lamination. Designed for versatility, this innovation adheres strongly to BOPP, PET, CPP, PE, and metallized films (VMPET, VMBOPP), enabling reliable multi-layer composite structures without solvent-related drawbacks.
Formulated with tailored polyester and polyether polyols, the adhesive features 100% solid content, zero VOC emissions, and low viscosity (≤4,000 mPa·s at 45°C), supporting high-speed lamination lines up to 400 m/min with minimal energy consumption. It eliminates drying ovens, reducing carbon footprints by over 60% compared to solvent-based alternatives, aligning with global sustainability regulations.
The universal PU system exhibits outstanding wetting and leveling, ensuring bubble-free, smooth laminates with high peel strength (≥3.0 N/15 mm) and excellent heat, moisture, and chemical resistance. It meets food-contact safety standards, suitable for retort packaging, snack pouches, and medical-grade laminates.
“Unlike conventional solvent-free adhesives that struggle with mixed film types, this universal grade simplifies inventory and enhances production efficiency,” said a senior R&D engineer. “It bonds dissimilar materials reliably, from BOPP/VMPET/PE three-layer structures to PET/aluminum foil composites, expanding design flexibility for manufacturers.”
As demand for eco-friendly, high-performance packaging surges, this universal solvent-free PU adhesive is poised to accelerate the shift from solvent-based systems. It complies with strict environmental norms while delivering the durability and processability required for modern flexible packaging applications.
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