Eco-friendly Woodworking PUR Glue Moisture Curing Reactive Polyurethane Adhesive
Eco-friendly woodworking PUR glue moisture curing reactive polyurethane adhesive for mass production of PVC/WPC flooring
Specially formulated for mass production of PVC/WPC flooring, this moisture-curing reactive polyurethane (PUR) adhesive offers superior bonding strength, heat resistance, and durability for industrial woodworking applications.
Product Specifications
| Attribute |
Value |
| Open Time |
>3 min |
| Shelf Life |
6 months |
| Color |
White |
| Viscosity |
8000-12000@100℃ |
| Heat Resistance |
High |
| Form |
Hot melt |
| Chemical Resistance |
Good |
| Application |
PVC/WPC flooring manufacturing |
Product Description
This eco-friendly, moisture-curing reactive polyurethane (PUR) adhesive is engineered for industrial-scale woodworking and flooring applications, particularly PVC and WPC (Wood Plastic Composite) flooring. Ideal for automated lamination and continuous production lines, it provides:
- High green strength for immediate handling
- Excellent heat and water resistance
- Strong adhesion to plastics, foils, engineered wood, and composites
- Durable, flexible bond line through moisture-activated cross-linking
Primary Applications
Wooden parts assembly and WPC floor-silent mat laminating.
Technical Properties
| Item |
Typical Value |
Range |
| Appearance |
White solid at room temperature. Becomes milk white liquid after heating. |
| Cure |
Moisture curing |
| Density (g/cm³) |
1.15 |
1.1-1.2 |
| Viscosity (mPa.s @100℃) |
10000 |
8000-12000 |
| Open time (min) |
10 |
>3min (varies by application and environment) |
| Recommended using temp (℃) |
130 |
130-150 |
Directions For Use
- Working temperature: 130-150°C
- Dosage: 50-400g/m² (depending on base material)
- Storage: Keep in dry location, seal unused products
- Shelf life: 6 months in unopened original containers stored in cool, dry place
Cleaning Instructions
For spilled adhesive, wait until cooled to room temperature and gently scrape with razor blade. Uncured residue can be removed with polyurethane-dissolving solvent. Clean equipment promptly to prevent clogging from moisture-cured adhesive.
Curing Process
Curing time (1-3 days to final strength) depends on temperature, humidity, and substrate. For optimal curing, store bonded products at 25°C and 50% relative humidity or higher. Film thickness and substrate permeability affect curing speed.
Safety Information
Contains diphenylmethane diisocyanate. Requires proper ventilation during application. Avoid skin contact and do not exceed recommended temperatures to prevent hazardous decomposition.
Important: Conduct prior trials to verify suitability for your specific application. Performance may vary based on operating conditions.
Frequently Asked Questions
How does PUR adhesive differ from regular hot melt glue?
PUR adhesive chemically cross-links with moisture to create stronger, more durable bonds than traditional EVA hot melts, with superior heat resistance and aging properties - especially effective for PVC and WPC surfaces.
Is this adhesive environmentally friendly?
Yes, this solvent-free, low-VOC formulation contains no formaldehyde or benzene, complying with REACH, RoHS, and OEKO-TEX standards with minimal odor during application.
Is it suitable for high-speed production?
Engineered for automated lines, this adhesive works with roller coaters, slot coaters, and spray systems, featuring long open time and fast green strength for mass production efficiency.
