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The Official Website of this Non-Professional Woodworker ™ |
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Part 1
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Most types of cold press glues require only 1 hour in the press to fully bond the veneer. Ultra-CAT glue requires up 6 hours depending on the ambient temperature. Many professionals use a heating blanket thrown over the veneer press bag to speed the curing of the glue. After removing a glued up veneer from the press, do not use it immediately. Wait at least 6 hours (24 hours is best) for the glue to fully cure. During this drying period, be sure to store the panel on a flat surface with ½” dowels under it. Space them 10 to 12 inches apart. Don’t be tempted to just toss it on the workbench. The glue on the top surface will continue to dry while the underside, being starved for air, will remain uncured. This will result in a warped panel. Even thick substrates will warp if stored incorrectly. For thinner substrates, it is a good idea to place dowels and another board on top of the veneered panel as well to even-out the curing process.
For drying a smaller panel, use a few spring clamps to suspend the veneered panel from a ½" dowel, as shown below. Substrates less than ½" will warp slightly if they are not framed in a wood border within a few days of pressing. So, if you have no use for a veneered panel, don't make one. Generally speaking, thinner substrates warp faster and more perceptibly. |
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