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PUR Hot Melt Adhesive: Core Advantages & Technical Features
• Moisture-Curing High Bond Strength
Reactive chemical bonding delivers 2.5-3.0MPa strength (30% higher than traditional adhesives), maintaining stability under vibration/impact for industrial-grade bonding.
• Provide Formula Technology Support
FLEX Machinery Co., Ltd. not only supplies customers with high-quality and cost-effective PUR hot melt adhesive machine line, but also offers formula technical support, such as wood-bonding flat lamination/wood edge sealing /wood wrapping adhesive, for textile adhesive,etc.
• 100% Solids & Eco-Friendly
Solvent/VOC-free, compliant with REACH/RoHS. No harmful emissions, ideal as an eco-friendly solvent-free adhesive for green production.
• Exceptional Weather Resistance
Withstands -40℃ to 120℃, water, and chemicals. Ensures over 15 years of durability, fitting weather-resistant PUR adhesive needs.
• Broad Substrate Compatibility
Bonds wood, textiles, metals, plastics, and composites without pre-treatment, simplifying multi-material bonding.
• Efficient & Cost-Effective Construction
Fast melting (120-160℃) and low consumption (50-80g/m²) boost production efficiency by 40%, offering an efficient bonding solution.
| Product Parameter | ||
| 1 | Product name | PUR hot melt glue |
| 2 | Application | For wood edge sealing |
| 3 | Ingredient | MDI, polyester resin, polyether polyol |
| 4 | Appearance | white solid block |
| 5 | Properties | Low & high temperature resistance, oil & ink erosion resistance, excellent adhesion, good flexibility and thermostability. |
| 6 | Viscosity | approx.2000-4000mPa.s@120℃ |
| 7 | Applicable machine temperature | 110℃-130℃, adjustable according to substrates, ambient temperature and machine speed |
| 8 | Packing | 2KG-20KG-200KG |
| 9 | Application | 1) Full range of panel edge sealing: Straight / irregular edge sealing for solid wood panels, density boards (MDF), particle boards, etc. 1) Edge sealing for custom furniture such as cabinets, wardrobes, and bookcases, ensuring strong bonding without any delamination. |
• Furniture Edge Banding & Lamination
Ideal for PUR edge banding adhesive in furniture manufacturing, bonding PVC/ABS edge strips to MDF, particleboard, and solid wood. It offers moisture resistance and high bonding strength, ensuring no peeling for over 15 years, suitable for cabinets and custom furniture.
• Textile & Garment Lamination
Applied as textile composite PUR hot melt adhesive for bonding fabrics, leather, and sponges. It maintains fabric flexibility and breathability, withstands over 50 washes, and fits sportswear, outdoor gear, and home textiles.
• Automotive Interior Assembly
Serves as automotive interior PUR adhesive for bonding seats, door panels, and ceilings. Compatible with ABS, fabrics, and leather, it meets -40℃ to 90℃ temperature resistance and low VOC requirements, ensuring 10-year durability.
• Electronic Component Encapsulation
Used for precise bonding of mobile phone frames, sensors, and displays. It features high insulation (volume resistivity >1×10¹⁵Ω·cm) and low shrinkage, maintaining stability in 1000 temperature cycles.
• Packaging & Book Binding
Suitable for carton sealing and high-end book binding. It provides strong adhesion to paper and plastic films, withstanding extreme temperatures, ensuring books lie flat and packages stay sealed.
• Building Material Bonding
Bonds aluminum-plastic panels, door/window profiles, and decorative films. It resists humidity and UV rays, preventing deformation, and is widely used in interior decoration and construction.
1. Pre-Use Preparation:
Vacuum packaging inspection (ensure no leakage), equipment cleaning requirements (use dedicated cleaners to avoid residue), and substrate pre-treatment standards (keep surfaces dry, dust-free, and oil-free) .
2. Scenario-Specific Parameter Table:
Preheating temperature, adhesive application amount, and pressurization parameters for 6 major scenarios including furniture edge banding and textile lamination .
3. Quick Solutions to Common Problems:
Troubleshooting plans for 8 issues such as insufficient bonding strength, slow curing, and adhesive overflow .
4. Safe Operation Specifications:
High-temperature protection (wear protective gear), storage conditions (cool, dry, <35℃), and waste disposal precautions .
1. In addition to equipment supply, does your factory provide other services?
FLEX Machinery Co., Ltd. not only supplies customers with high-quality and cost-effective machines, but also offers a range of services according to the customer's needs, including adhesive formula technical support, full-process production guidance, as well as overseas machine installation and commissioning services.
2. What is the shelf life and storage requirement?
Unopened products have a 12-month shelf life when stored sealed in a cool, dry place (5-25℃) away from moisture and sunlight. After opening, use it as soon as possible and seal tightly with nitrogen to avoid premature reaction.
3. Why is the bonding not firm?
It may be due to incompatible substrates, insufficient adhesive amount, or improper temperature (110-140℃). Test compatibility first, adjust coating thickness, and ensure substrates are clean, dry, and oil-free before application.
4. What’s the proper construction temperature?
The optimal preheating and construction temperature is 110-140℃. Excessively high temperature (>250℃) causes polymer degradation, while low temperature leads to poor fluidity and insufficient bonding.
5. How to solve pipe clogging during use?
Clogging is usually caused by insufficient temperature or residual adhesive. Heat the hose to above 180℃ to melt solidified glue, and regularly clean equipment and check the temperature control system to prevent recurrence.
6. Can it bond low-surface-energy materials like PP/PE?
It is compatible with most materials including wood, textiles, and plastics. For PP/PE, perform flame treatment or use a primer first to improve adhesion, and conduct a test before mass production.
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