How to splice veneer in high quality ?

High-Quality Veneer Splicing: Key Steps

To achieve seamless veneer splicing, focus on material preparation, equipment precision, operational techniques, and quality control:

Select veneer with uniform thickness (±0.1mm) and stable moisture (8%-12%). Trim edges smoothly and sort by color/grain. Edge trimming is very important. Precision and pressure are both required.

2. Machine Setup

Calibrate splicing machines for alignment (gap ≤0.05mm) and adjust pressure/speed based on veneer thickness. Use low-viscosity adhesives like EVA water based glue (80-120g/m²).

3. Techniques

Align veneer grain direction for invisible seams. Apply pre-pressing before heat curing (100-120°C for PUR glue). Ensure even pressure (0.5-1.2MPa) to prevent cracks.

4. Post-Processing

Sand seams with fine-grit sandpaper (240+ grit) and stabilize veneer in controlled humidity (45-55% RH) for 24 hours.

5. Quality Checks

Inspect seams under angled light for invisibility. Test bond strength (≥5N/mm²) and flatness (≤0.1mm/m variance).

Common Fixes:

Success Formula: 30% equipment + 40% process + 30% expertise. Ideal for luxury furniture, automotive interiors, and fine woodworking.

Machine with water based glue

Spliced by water based glue Spliced by solid glue thread

Machine with PUR melt glue