Polyurethane Adhesives for Wood and Furniture Applications

Polyurethane adhesives (PU adhesives) are widely used in the woodworking and furniture industries due to their strong bonding strength, flexibility, and resistance to moisture, heat, and chemicals. They are ideal for bonding both solid wood and engineered wood products like MDF, plywood, and particleboard.

Key Features

• Strong adhesion: Provides durable bonds even on porous or oily wood surfaces.

• Water and heat resistance: Excellent for outdoor furniture and humid environments.

• Flexible bonding: Accommodates the natural expansion and contraction of wood.

• Gap-filling properties: Expands slightly as it cures, filling small voids and imperfections.

• Single-component (1K) and two-component (2K) options are available for different production needs.

Common Applications

• Solid wood lamination

• Door and window frame assembly

• Furniture joints and frames

• Panel bonding (e.g., MDF, chipboard)

• Veneering and edge gluing

• Decking and outdoor wooden structures

Technical Properties

• Curing time: Initial grip in 15–30 minutes; full cure in 24 hours (varies by product)

• Application temperature: Usually between +5°C and +30°C

• Application methods: Brush, roller, glue spreader, or spray systems

• Colour: Usually amber, light yellow, or transparent after curing

Advantages Over Other Adhesives

• Better water resistance than PVA (white glue)

• Suitable for high-stress joints and load-bearing parts

• Excellent for industrial and craftsman-level woodworking