Veneering with Contact Cement
There
are a number of ways to apply wood veneer to a substrate. If you
prefer a fast, convenient method that doesn't require a lot of special
equipment, good results can be achieved with contact cement and a few
hand tools. With a few tips, the process is actually very easy.
To get ready, you'll want to pick the section of the veneer that you want to
include. In most cases, you'll want to cut your substrate to finished size
before you begin. That way, you can simply trim the veneer when you're
done, without having to worry about damaging the veneer by trimming the
whole finished piece with a table saw. You'll want the most attractive area
of the veneer pattern centered on the substrate, and with the contact cement
method, you'll have just one chance to get it right. Here's an easy method for
getting that perfect piece of maple burl or Macassar ebony veneer in just the
right spot.
One way to make sure you get the section of the veneer you want on the
finished piece is to is to make "window" out of a piece of cardboard
that's exactly the same size as your substrate. Place the substrate panel
on top of a piece of cardboard, mark off the outside edge of the substrate and
cut out your "veneer selecting window." Position the
cardboard window over the part of the veneer you want placed on the finished
piece. Mark the section of veneer and trim it ½'' oversized.
Now you're ready for the contact cement. Following the manufacturers
instructions, apply contact cement to both the veneer and the substrate and
allow the cement to set. One advantage to using contact cement is that
once the pieces touch, they will not slip as they might with liquid glue.
But that also means the pieces must be in the right positions before they are
pressed together.
One way to make sure that the veneer ends up in the right place is to put a
piece of waxed paper between the panel and the veneer. This allows you to
position the veneer over the panel before pulling the waxed paper out slowly. To
make centering the veneer easier, cut the waxed paper to the same size as you
cut the veneer on three sides, and a little longer on the end you'll hold when
you remove it.
When you have the veneer in position, carefully pull out the wax paper,
making sure that the veneer stays in place during the process. Once the pieces
have made contact, roll the veneer down with a veneer roller, starting at the
center of the veneer and moving outwards to the edge of the substrate. After you
roll down the veneer, it's best to go over the surface with a smoothing
blade to insure that the veneer is thoroughly adhered to the substrate.
Now, run your hand over the surface of the veneer to make sure that it is
flat and that there are no trapped air bubbles between the veneer and the
substrate. Tap your finger on any suspect areas - a higher pitched sound
indicates a bubble or an area where the veneer isn't adhered. Roll down
any improperly adhered areas and go over them with a smoothing blade. For a
really persistent bubble, you may have to make a small slice in the direction of
the grain with a razor knife to let out the trapped air.
Finally, turn the workpiece upside down on a cutting surface and
trim the veneer with a razor knife using the edges of the substrate as a
guide. Remember to make a few scoring strokes to establish the cut before
bearing down on the veneer. Following adhesive and finish manufacturers'
instructions, allow ample curing time for the contact cement before
finishing the piece.
Rockler
Woodworking and Hardware offers everything you'll need for your
veneering project. Rockler keeps a wide variety
of veneers on
hand, along with quality veneering
supplies including adhesives, rollers, smoothing blades, veneer
cutters, and scrapers.
Happy Woodworking!
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