FC3329T PUR Adhesives for Footwear Bonding

The Advantages of Our Footwear Bonding PUR Adhesive

1. Exceptional Peel Strength & Flex Resistance

Solves the critical issue of toe and midsole delamination. It delivers a peel strength of >15 N/cm (SATRA TM137) and effortlessly withstands >100,000 dynamic bending cycles (ASTM D430) to endure athletic impacts and high-frequency movement.

2. Extreme Weather & Damp-Heat Resistance

Built for harsh environments, the cured adhesive resists embrittlement at –30°C and softening at +100°C. It maintains >90% bond retention even after 500 hours of severe damp-heat aging (70°C / 95% RH), preventing chalking and structural failure.

3. Broad Material Compatibility

Perfectly bonds a diverse range of shoe components. Ideal for upper materials like top-grain cowhide, microfiber leather, flyknit, and mesh fabric, seamlessly laminating them to EVA foam, TPU elastomers, E-TPU, and rubber sheet midsoles.

4. Rapid Curing & High Efficiency

Features a 60-second rapid hot-press curing time, which is up to 3× faster than conventional solvent-based adhesives. This significantly boosts assembly line throughput while keeping the bonded materials lightweight and highly elastic without hardening.

5. Eco-Friendly & Factory Safe

100% solid content with ultra-low VOC emissions (<100 μg/m³, GB/T 32472). Fully compliant with ISO 17700 footwear environmental standards, ensuring a healthier factory floor and eliminating the need for toxic solvent-drying tunnels.

Key Process Description

1. Heating & Melting

The PUR adhesive is heated in a specialized melter to its optimal operational temperature, transforming into a highly flowable state for smooth and precise application.

2. Precision Coating

Applied uniformly via roller coating, spray, or slot-die extrusion onto the shoe upper fabric or midsole material. Its controlled viscosity prevents unsightly adhesive bleed-through on delicate flyknit or microfiber surfaces.

3. Hot-Press Lamination

The upper and sole components are combined under controlled pressure. The adhesive provides instant, high-tack initial bonding (within 60 seconds), allowing for immediate handling on the fast-paced footwear production line.

4. Moisture-Curing Action

Over 1–5 days, the adhesive reacts with ambient moisture to form an irreversible 3D cross-linked thermoset structure, locking in long-lasting resistance against foot sweat, rain, and mechanical stress.

Benefits in Footwear Manufacturing

High-Performance Athletic Shoes

Provides the essential elasticity and shock-absorbing bond strength required for running shoes, basketball sneakers, and outdoor boots subjected to intense dynamic impacts.

Premium Leather & Casual Footwear

Ensures an invisible, soft, and flexible bond line that preserves the natural drape and premium feel of top-grain cowhide and suede leathers.

Streamlined & Clean Production

Replaces traditional solvent-based glues, dramatically reducing the factory footprint, eliminating fire hazards, and improving overall production efficiency.

Packing Details

Available Packaging

We have various packaging options for our PUR hot melt adhesive:

1) 200 Kg / drum, 56 drums / 20'GP

2) 20 Kg / pail or barrel, 448 pails / 20'GP

3) 2 Kg / can

4) 300 ml / cartridge

Company Information

Sino-Adhesive is a leading global manufacturer to achieve large-scale production of PUR hot melt adhesive (Polyurethane Reactive). We supply premium bonding solutions for shoe materials lamination, seamless underwear, technical textiles, woodworking, and automotive interior trim.

Operating a world-class production base in Jiangmen City, Guangdong Province, China, Sino-Adhesive is certified with Bluesign, OEKO-TEX, GOTS, IATF 16949, ISO 9001, ISO 14001, and ISO 45001 systems. Welcome to contact us for customized footwear bonding solutions.

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