Burning of Veneer |
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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 |
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Crushed and shiny surface along the glue line. | Too much pressure. | Check the pressure setting. |
Crimping of Veneer |
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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. |