| Burning of Veneer | ||
Dark brown scorch lines on either side of the glue line. Usually dominant on the bottom side from the lower heater bar. | Excessive heat from either the upper or lower heater bar. Also crystallizes the glue. | Lower the temperature setting. See temperature/thickness chart. |
Increase the feed rate. | ||
| Burnishing of Veneer | ||
Crushed and shiny surface along the glue line. | Too much pressure. | Check the pressure setting. |
| Crimping of Veneer | ||
The veneer is crimped within 1" of either side of the glue line. | The inside edges of the feed chains are worn. | Replace the feed chains. |
Reduce the pressure. | ||
