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Laminated veneer lumber detail. Laminated veneer lumber (LVL) is an engineered wood product that uses multiple layers of thin wood assembled with adhesives.It is typically used for headers, beams, rimboard, and edge-forming material.
Smooth sheets of paper were pasted over the painted surface of the panel, and a layer of muslin over that. The panel was then fixed, face down, to a table, and the wood planed away from the back until it was "as thin as a plane may safely go", and the remainder scraped off with a sharp instrument such as a razor.
Glulam brace with plates used for connections Glulam frame of a roof structure. Glued laminated timber, commonly referred to as glulam, is a type of structural engineered wood product constituted by layers of dimensional lumber bonded together with durable, moisture-resistant structural adhesives so that all of the grain runs parallel to the longitudinal axis.
Plywood is a common example of a laminate using the same material in each layer combined with an adhesive. Glued and laminated dimensional timber is used in the construction industry to make beams (glued laminated timber, or Glulam), in sizes larger and stronger than those that can be obtained from single pieces of wood.
The conservator may choose to add additional adhesives to existing adhesives, depending on the state of the existing adhesive. Replacing failed adhesives with new ones. The conservator may choose to replace a failed adhesive entirely. In this case, the conservator must carefully remove the failed adhesive from the area they plan to re-glue.
In this way the log is peeled into sheets of veneer, which are then cut to the desired oversize dimensions, to allow it to shrink (depending on wood species) when dried. The sheets are then patched, graded, glued together and then baked in a press at a temperature of at least 140 °C (284 °F), and at a pressure of up to 1.9 MPa (280 psi) (but ...